JSON Trình định dạng

JSON Trình thu gọn

JSON to YAML

YAML to JSON

HTML Trình mã hóa

URL Trình mã hóa

Trình nén CSS

JS Trình thu gọn

SQL Trình định dạng

Regex Tester

Kiem tra su khac biet

Parse cron expressions into human-readable time.

Extract plain text from HTML, removing all tags.

Query JSON data using JSONPath expressions with filtering.

Định dạng

Xây dựng và kiểm tra yêu cầu HTTP.

Định dạng

View CSV data in a formatted table.

Encode files to Base64 strings.

Mã hóa

Detect the technology stack of any website — frameworks, CMS, CDN, analytics, hosting, and more. Supports batch comparison of multiple sites.

Compare code side-by-side with syntax highlighting. Supports JSON structural diff, line-level changes, and merge-friendly output.

Convert cURL commands into equivalent code for fetch, axios, Python requests, Java HttpClient, Go net/http, and more — 100% local.

Edit HTML visually with a rich text editor. See live WYSIWYG preview alongside the HTML source code — 100% local.

Visualize how a regex pattern matches text with a step-by-step animated diagram. Copy railroad diagrams and get pattern explanations.

Generate a dark mode CSS override for any website. Input CSS or a URL and get ready-to-use dark theme variables — 100% local.

Build data transformation pipelines by dragging operations. Chain encode → decode → format → compress steps visually — a simplified CyberChef.

Lightweight API testing sandbox. Build HTTP requests with headers, body, and auth. Test endpoints without Postman — 100% local.

Turn your code into beautiful shareable images. Choose themes, window decorations, gradients, and export for social media — 100% local.

Kiểm tra nhiều URL cho SEO cùng lúc. Kiểm tra độ dài tiêu đề, meta mô tả, tiêu đề, thẻ Open Graph và nhận bảng điểm so sánh.

Mã hóa

Chuyen doi giua thap luc phan, nhi phan va thap phan.

Color Trình chuyển đổi

Chuyen doi giua cac don vi can nang va chieu dai.

Timestamp Trình chuyển đổi

Convert CSV data to JSON format.

Convert JSON arrays to CSV format.

Convert Excel files to CSV format.

Convert CSV files to Excel (.xlsx) format.

Tao cac bieu do thanh, duong, tron va donut tu du lieu CSV tuc thi. 100% dia phuong.

Extract audio from MP4 video files to MP3.

Convert JSON to TOML configuration format.

Convert TOML configuration to JSON format.

Chuyen doi giua nhi phan, bat phan, thap phan va thap luc phan.

Chuyen doi giua so La Ma va so Arab.

Convert text to ASCII art.

Look up MIME types for file extensions.

Merge multiple PDF files into one.

Split PDF into individual pages or ranges.

Nen va giam kich thuoc tap tin PDF.

Convert PDF pages to PNG or JPG images.

Convert images to a single PDF file.

Convert Markdown text to PDF document. Supports headings, lists, code blocks, tables, bold/italic, links, and more. Uses jsPDF for rendering.

Convert HTML code to PDF document. Supports page size, orientation, and margin settings. Uses html2canvas and jsPDF for rendering.

Text Case Trình chuyển đổi

Dem tu, ky tu, dong va byte.

Phân tích độ đọc hiểu văn bản với các chỉ số Flesch-Kincaid, Gunning Fog và khác. Nhận số từ, thống kê độ dài câu và ước tính cấp độ.

Generate placeholder text for designs.

Markdown to HTML

Convert text to URL-friendly slugs.

Remove duplicate lines from text.

Đảo ngược

Sort lines alphabetically, by length, or numerically.

Add line numbers to text.

Remove hidden and zero-width characters from text.

Dem tan suat ky tu trong van ban.

Truncate text to a specified length.

Find and replace text with regex support.

Re-wrap text to a specified width.

Encode images as Base64 Data URIs.

Phân tích thời gian đọc, thời gian nói và độ phức tạp của văn bản.

Check if text is a palindrome.

Find anagrams for a given word or letters.

Scramble and randomly rearrange word letters.

Convert text to sentence case format.

Convert tabs to spaces or vice versa.

Convert text to speech using Web Speech API. Fully local, no server required. Adjust speed, pitch, volume, and choose from available voices.

Generate secure random passwords.

Hash Trình tạo

UUID Trình tạo

JWT Trình giải mã

Generate Bcrypt password hashes.

Generate random strings with custom length and character set.

Generate TOTP codes using a secret key.

Check SSL/TLS certificate info for a domain.

Encode and decode Morse code messages.

Encrypt and decrypt text using Caesar cipher.

Encode and decode text using ROT13 cipher.

Encrypt and decrypt text using Vigenere cipher.

Generate HMAC hash values using a key.

Generate file checksums (MD5, SHA-256).

Resize images to specified dimensions.

Crop images to specified dimensions.

Chuyen doi hinh anh giua cac dinh dang khac nhau.

Compress images to reduce file size.

Nén, chuyển đổi định dạng hoặc thay đổi kích thước nhiều ảnh cùng lúc.

Add text or image watermarks to images.

Pick colors from uploaded images.

Apply blur effects to images.

Rotate images to any angle.

Flip images horizontally or vertically.

Screenshot to PNG

SVG to PNG

Generate favicon icons from images.

Image Placeholder Trình tạo

QR Code Trình tạo

ID Photo Cropper

ID Photo Background

ID Photo Trình tạo

Percentage Máy tính

Fraction Máy tính

Scientific Máy tính

Calculate monthly payments for personal or auto loans. See total interest paid and a full amortization schedule.

Tip Máy tính

Percentage Change

Máy tính trung bình

Tính toán

PNG to SVG

Generate EAN and UPC barcodes.

Generate clean short links with custom aliases, QR codes, and click tracking analytics. 100% local, no account required.

Random Number Trình tạo

IP Address Lookup

Look up DNS records for a domain.

Test network latency with ping.

Scan open ports on a host.

Website Speed Test

What is My IP

Parse User-Agent strings to identify browser and device.

Screen Resolution

Thông tin trình duyệt

Date Difference

Time Zone Trình chuyển đổi

Simple stopwatch with lap timing.

Set a countdown timer with alerts.

View current time across multiple time zones.

Flip a virtual coin for random results.

Roll customizable virtual dice.

Card Draw

Randomly shuffle list order.

Nguoi ra quyet dinh

Yes No Trình tạo

Quote Trình tạo

Meme Text Trình tạo

Changelog Trình tạo

README Trình tạo

Privacy Policy Trình tạo

Terms Trình tạo

Sitemap Trình tạo

Robots.txt Generator

Stay focused with a customizable Pomodoro timer featuring work/break cycles, progress tracking, and browser notifications.

Sổ ghi chú nhanh với tự động lưu, lưu trữ ghi chú trong trình duyệt. Hỗ trợ văn bản thuần và xem trước Markdown cơ bản.

Manage tasks with a simple, localStorage-backed todo list. Add, edit, reorder, and check off items — data stays on your device.

Trình tạo Gradient CSS

Tao bieu do luong, bieu do chuoi va nhieu hon bang cu phap Mermaid.

Kham pha cac cap Google Fonts dep cho tieu de va van ban noi dung.

Trình tạo Box Shadow

Json Schema Trình tạo

Http Status Trình kiểm tra

Tao Data URI

Wifi Qr Trình tạo

Kiem tra the tin dung

Iban Trình xác thực

Image Grayscale

Image Metadata Trình xem

SVG Optimizer

Convert PNG and JPG images to ICO favicon format. Generate multi-size icon files for websites and applications.

Add rounded corners to images with adjustable border radius. Preview and download as PNG with transparent background.

Split an image into a grid of equal tiles. Choose rows, columns, and export all pieces as a ZIP file.

Ratio Máy tính

Calculate your Body Mass Index (BMI) using metric or imperial units. See your BMI category and healthy weight range.

Estimate calories burned during common activities including running, cycling, walking, and swimming. Based on MET values.

Calculate statistical significance, confidence intervals, and lift for your A/B test results. Determine if your experiment has a winner.

Number Sorter

Open Graph Trình tạo

Port Trình kiểm tra

Emoji Search

Markdown Table Trình tạo

Escape Unescape

Generate powerful AI prompts for ChatGPT, Midjourney, and more.

Summarize long text into concise key points instantly.

Explain what your code does in plain language.

Run a fast on-page SEO audit checklist for titles, meta tags, headings, links, and content quality.

Phân tích tiêu đề, meta mô tả, Open Graph, Twitter Card, canonical và robots meta snippets.

Measure keyword frequency, density, and content focus for SEO writing.

Generate long-tail keyword ideas, question keywords, and modifier combinations.

Prepare a backlink review checklist and organize referring-domain data for SEO analysis.

Extract domain details and generate a domain age / authority review checklist.

Inspect URL redirect plans and generate a safe migration checklist.

Paste URLs or links and identify likely broken, malformed, or risky links.

Test robots.txt rules against user agents and paths before publishing.

Extract URLs from XML sitemap text and export a clean URL list.

Tao ban nhap co cau truc cho bai viet, bai dang, trang san pham va van ban marketing.

Generate SEO-friendly titles, headlines, and social hooks from a topic.

Generate clear paragraphs from a topic, keywords, and tone.

Draft professional emails for outreach, replies, follow-ups, and support.

Rewrite AI-like text into a more natural, human, readable style.

Find common grammar, punctuation, casing, and readability issues.

Generate academic citations in APA, MLA, Chicago, and GB/T 7714 formats. Enter source details and get formatted references.

Compare two text passages for similarity. Calculate overlap percentage and highlight matching sections locally in your browser.

Nen anh xuong kich thuoc muc tieu 50KB trong trinh duyet cua ban.

Nen anh xuong kich thuoc muc tieu 100KB trong trinh duyet cua ban.

Resize and compress an image toward a 50KB target.

Resize and compress an image toward a 100KB target.

Convert PNG images to JPG format locally.

Convert JPG or JPEG images to PNG format locally.

Convert WebP images to PNG format in your browser.

Convert images to lightweight WebP format.

Upload a screenshot and annotate it with arrows, text, shapes, blur, crop, and highlight. Export as PNG with one click — 100% local.

Enter a URL to capture a full-page or viewport screenshot. Supports desktop, tablet, and mobile viewport simulation.

Convert images to modern AVIF format for smaller file sizes. Supports batch conversion with quality comparison — 100% local.

Generate all favicon sizes from one image: 16x16, 32x32, 48x48, 180x180, 192x192, manifest.json, and ICO — 100% local.

Prepare a PDF compression plan for a custom target size (KB).

Generate trending hashtag combinations for Instagram, TikTok, and Twitter based on keywords and topics.

Create Instagram captions with hooks, emojis, and calls to action.

Generate clickable YouTube video titles optimized for search intent.

Draft YouTube descriptions with timestamps, links, and SEO keywords.

Generate YouTube tags and keyword variations for video discovery.

Dem ky tu X/Twitter va kiem tra do dai bai viet tuc thi.

Tao bai dang LinkedIn chuyen nghiep tu mot chu de va phong cach.

Generate short bios for Instagram, X, TikTok, LinkedIn, and creators.

Plan and optimize cross-platform content distribution. Select target platforms, preview platform-specific formatting, generate shareable links, and schedule publishing in one place.

Paste a URL to extract the article content, metadata, and images. Export as clean Markdown, HTML, or structured data — 100% local.

Tạo URL theo dõi chiến dịch với tham số UTM cho Google Analytics. Tạo sẵn liên kết cho chiến dịch marketing.

Calculate ad spend, clicks, revenue, profit, ROAS, and ROI.

Calculate gross profit, markup, and margin from cost and price.

Thêm hoặc xóa thuế GTGT/thuế từ giá và tính số tiền thuế.

Calculate sale price, discount amount, and savings percentage.

Calculate how many units you need to sell to break even.

Generate a simple invoice preview from business and line-item data.

Tao ban nhap thu sach tu vai tro, kinh nghiem, ky nang va hoc van cua ban.

Generate a tailored cover letter for a role, company, and background.

Draft job descriptions with responsibilities, requirements, and benefits.

Tao nghi trinh hop co cau truc voi muc tieu, chu de, nguoi phu trach va thoi gian.

Turn discussion notes into concise meeting minutes and action items.

Generate a project brief with goals, scope, timeline, stakeholders, and risks.

Tao phan tich SWOT tu mot cong ty, san pham hoac y tuong du an.

Generate brandable business name ideas from keywords and industry.

Generate short slogans and taglines for brands, products, or campaigns.

Write ecommerce product descriptions with benefits, features, and CTA.

Generate frequently asked questions and answers from a topic or product.

Generate email subject lines for campaigns, newsletters, and outreach.

Draft a press release for a launch, announcement, or milestone.

Tao de an ke hoach kinh doanh thuc te cho lap trinh bat dau du an hoac du an.

Generate a client proposal structure with scope, deliverables, timeline, and pricing.

Generate creative brand and business name ideas by combining prefixes, suffixes, and industry keywords. Filter by style and length.

Inspect file name, type, size, extension, and last modified date in your browser.

Chuyen doi bytes, KB, MB, GB va TB voi don vi thap phan va nhi phan.

Generate clean, SEO-friendly file names from messy names or titles.

Preview safe file-extension changes before renaming files.

Find duplicate file names from a pasted list and prepare cleanup actions.

Review archive file size, type, and extraction checklist before uploading or sharing.

Trim whitespace, remove empty lines, and deduplicate CSV rows locally.

Extract selected columns from CSV text by column name or index.

Estimate target bitrate and reduction ratio for video compression.

Calculate video file size from duration, bitrate, audio bitrate, and frame rate.

Generate thumbnail text, composition, contrast, and hook ideas for videos.

Plan audio trim ranges and export notes before editing.

Estimate audio size from duration, bitrate, channels, and format.

Inspect audio file name, type, size, and browser-readable metadata.

Validate SRT numbering, timestamps, empty blocks, and common subtitle issues.

Clean transcripts by removing filler words, repeated spaces, and timestamp noise.

Trình chỉnh sửa video trên trình duyệt với các chức năng cơ bản: cắt, chia và ghép.

Merge multiple video clips into one video file.

Trim video to remove unwanted start and end sections.

Add background music or voiceover to your video.

Overlay text, titles, and captions on video frames.

Crop video to a specific aspect ratio or region.

Resize video resolution for different platforms.

Tao video lap lien tuc khong ngat.

Chỉnh, tắt tiếng hoặc tăng cường mức âm thanh video.

Speed up or slow down video playback.

Reduce camera shake and smooth video motion.

Convert video clips to animated GIF images.

Play video in reverse for creative effects.

Combine multiple videos into split-screen layouts.

Tao video slideshow tu anh voi am nhac.

Record your screen, webcam, or browser tab.

Record video and take photos from your webcam directly in the browser.

Reduce video file size while maintaining quality.

Extract thumbnails from video files at any timestamp. Seek through the video and capture high-quality frames as PNG images.

Trim audio files to remove unwanted sections.

Chỉnh, chuẩn hóa hoặc tăng cường âm lượng âm thanh.

Change audio playback speed without pitch shift.

Shift audio pitch up or down.

Chỉnh tần số âm trầm, trung và cao.

Reverse audio playback for creative effects.

Record audio directly from your microphone.

Combine multiple audio tracks into one file.

Reduce background noise from audio recordings.

Chuyen doi giua MP3, WAV, OGG va cac dinh dang khac.

Normalize audio volume levels using peak normalization and LUFS loudness analysis. Process files entirely in your browser.

Convert PDF documents to editable Word format.

Extract tables from PDF to Excel spreadsheets.

Convert PDF pages to PowerPoint slides.

Convert multiple images into a PowerPoint presentation.

Combine multiple PowerPoint presentations into one.

Convert PDF content to clean HTML markup.

Convert Word documents to PDF format.

Convert Excel spreadsheets to PDF format.

Convert PowerPoint presentations to PDF.

Rotate PDF pages to the correct orientation.

Add text or image watermarks to PDF pages.

Add page numbers to PDF documents.

Add password protection to PDF files.

Remove password protection from PDF files.

Extract text from scanned PDF images.

Fill out PDF forms digitally.

Tao form PDF tuong tac voi truong van ban, o chon va danh sach xuong.

Compare two PDF documents side by side.

Translate text between languages with AI-powered accuracy.

Tao meme tuy chinh voi lop text.

Generate simple logo designs from text and shapes.

Tao bieu tuong va favicon tuy chinh.

Generate seamless patterns and textures.

Tao texture quy trinh cho cac du an thiet ke.

Tao wireframe nhanh cho thiet ke UI/UX.

Tao bang cam hung hinh anh cho cac du an.

Preview and compare font pairings.

Tao mo hinh thiet bi de trinh bay thiet ke.

Tao banner web va anh bia mang xa hoi.

Tao anh thu nho va anh xem truoc video.

Chuyen doi giua quyen chmod so va bieu tuong.

Convert Docker run commands to docker-compose.yml.

Quick reference for common Git commands and workflows.

Visual HTML editor with live preview.

Generate signed JWT tokens with custom payloads.

Look up vendor information from MAC address prefixes.

Calculate subnet masks, ranges, and broadcast addresses.

Generate Base64-encoded Basic Authentication headers.

Generate ULIDs (Universally Unique Lexicographically Sortable Identifiers).

Encrypt and decrypt text using AES algorithm.

Generate RSA public/private key pairs.

Phân tích độ mạnh mật khẩu và ước tính thời gian bẻ khóa.

Generate SHA-256, SHA-1, SHA-384, SHA-512, and MD5 hashes from any text. Compare hashes for integrity verification.

Encrypt and decrypt text using AES-256-GCM with a password. Uses PBKDF2 key derivation for strong security.

Generate BIP39 mnemonic phrases for crypto wallets.

Convert text to NATO phonetic alphabet.

Generate numeronyms like i18n, k8s, a11y.

Obfuscate strings for code protection.

Calculate estimated time of arrival based on speed and distance.

Run JavaScript performance benchmarks in browser.

Simple countdown timer with alerts.

Normalize and validate email addresses.

Parse and validate international phone numbers.

Generate valid IBAN numbers for testing.

Remove watermarks and logos from videos right in your browser: draw regions, choose from smart inpaint, Gaussian blur, mosaic, or solid fill, and process multiple areas at once — no uploads.

Overlay images, stickers, and logos onto video frames.

Chuyen doi cac pre dinh dang video cho MP4, WebM, MOV va nhieu hon.

Edit videos from transcript timelines and clip ranges.

Extract audio from video and transcribe speech to text using local AI (Whisper).

Tao mau sac, phong chu, su dung logo va quy tac tai san.

Separate vocal and instrumental tracks with an AI-assisted workflow.

Transcribe spoken audio into text using local AI (Whisper).

Edit title, artist, album, genre, and cover metadata plans.

Tao pham vi cat nhac chuong va pre xuat cho dien thoai.

Generate waveform visualization settings for audio clips.

Plan podcast chapters, cuts, intro/outro, and metadata.

Plan text edits, replacement ranges, and PDF export notes.

Plan image replacement, extraction, and layout fixes for PDFs.

Add a digital or visual signature workflow to PDF documents.

Extract image inventory and export instructions from PDF files.

Extract text strategy and cleanup rules for PDF documents.

Reorder, delete, insert, and split PDF page plans.

Chú thích PDF với highlighted, bản vẽ, văn bản, hình dạng và chữ ký. Trình chỉnh sửa PDF đầy đủ tính năng trên trình duyệt.

Tao hop cat trang PDF va cai dat dieu chinh canh lề.

Chan doan cac van de PDF pho thong va tao cac buoc sua chua.

Remove image backgrounds with an AI-assisted workflow.

Enhance image clarity, color, and resolution settings.

Plan horizontal, vertical, or grid image stitching layouts.

Extract text from images and clean OCR output.

Preview filter recipes for brightness, contrast, blur, and tone.

Chuyen doi kich thuoc bieu tuong va cac pre cai dinh dang cho favicon va ung dung.

Compare two images with visual diff settings and checklist.

Tao anh the/passport voi thay the nen va kiem tra tuan thu.

Crop photos to standard ID photo sizes (1-inch, 2-inch, passport).

Online beauty photo editor with skin smoothing, filters, and AI retouch.

Xây dựng quy trình mã hóa, giải mã và chuyển đổi từng bước.

Phat hinh thuc co the tu chu ky du lieu dan.

Tao cong thuc cong cu tai su dung va ghi chu quy trinh cong viec co the chia se.

Inspect and edit hexadecimal byte strings in the browser.

Measure randomness and encoded data entropy.

Inspect file signatures and magic bytes.

Parse certificate fields and validity checklist.

Draft WebSocket connection, message, and event tests.

Summarize tabular data with pivot table dimensions and metrics.

Generate chart configuration from CSV or table data.

Validate JSON data against schema rules.

Tao the hoc flashcard tu cac thuat nguoc va dinh nghia.

Write and preview LaTeX equation snippets.

Generate Sudoku puzzles and solution grids.

Generate simple maze layouts with size options.

Free alternative to Zapier for automation.

Xây dựng mẫu quy trình tự động hóa n8n.

Test and debug webhook endpoints.

Xây dựng công thức quy trình làm việc có thể tái sử dụng.

Convert form data to PDF documents.

Theo dõi

Convert RSS feeds to newsletter format.

Convert API responses to spreadsheet format.

Monitor and manage cron job schedules.

Plan task automation workflows and triggers.

Find open-source alternatives to paid tools.

Track GitHub repository star growth over time.

Generate GitHub README files for your projects.

Kiểm tra

Generate Docker Compose configuration files.

Find self-hosted alternatives to cloud apps.

Check the health and quality of GitHub repositories.

Security checklist for open-source projects.

Find free alternatives to Notion.

Find free alternatives to Figma.

Free alternative to Grammarly for writing.

Free alternative to Cursor AI code editor.

Free alternative to Ahrefs for SEO analysis.

Free alternative to Smallpdf for PDF tasks.

Free alternative to iLovePDF for PDF tasks.

Free alternative to Canva for design.

Free alternative to Calendly for scheduling.

Generate Notion templates for productivity.

Summarize meeting notes into key points.

Generate OKR goals for teams and individuals.

Plan and organize Kanban board workflows.

Generate standard operating procedure documents.

Tao mau bang hoi nghiem doi ngu.

Free Roadmap Generator for planning, comparing, generating, and improving online workflows with privacy-first ToolPure pages.

Generate detailed customer personas for marketing.

Chain multiple tools into reusable

Track daily habits with check-in, streak counting, and weekly calendar view. All data stored locally in your browser.

Phân tích trang giá để có thông tin tối ưu hóa.

Calculate SaaS pricing tiers and revenue.

Tính toán

Calculate customer churn rate and impact.

Calculate LTV:CAC ratio for your business.

Tính toán

Chuyen doi giua cac loai tien te voi ty gia truc tiep.

Calculate salary, taxes, and take-home pay.

Calculate monthly mortgage payments including principal, interest, taxes, and insurance. Compare 15-year vs 30-year loan terms.

Tính toán

Compare pricing across popular AI tools.

Find the right AI tool for your task.

Duyệt và quản lý thư viện các prompt AI có thể tái sử dụng.

Xây dựng và cấu hình quy trình làm việc của agent AI.

Calculate token costs for LLM API calls.

Describe what you need in plain language and AI recommends the best tool chain. No more searching — just tell us what you want to do.

Duyệt và tìm kiếm thư mục máy chủ MCP.

Checklist for preventing API key leaks.

Kiểm tra

Check GDPR cookie compliance for your website.

Check your visibility in AI-powered search results.

Generate schema markup for SEO.

Preview how your page appears in search results.

Generate trending hashtags for TikTok.

Convert HEIC/HEIF photos from iPhone to JPG — 100% local, no upload.

Strip EXIF metadata (GPS, camera info) from photos for privacy — 100% local.

Extract text from PDF and convert to Markdown for LLM/RAG — 100% local.

Generate beautiful color palettes for your designs.

Sharpen images to improve clarity and detail.

Convert images to Base64 encoded strings for embedding in HTML/CSS.

View EXIF metadata from photos including camera, GPS, and exposure info.

Simulate how images look under different types of color blindness.

Calculate MD5, SHA-1, SHA-256 hashes of files and text.

Chuyen doi giua cac don vi luu tru (bytes, KB, MB, GB, TB, PB).

Calculate download/upload time based on file size and bandwidth.

Estimate upload time based on file size and connection speed.

Calculate required bitrate and storage for video streaming.

Chuyen doi giua pixel, DPI, PPI va kich thuoc in an.

Calculate compound interest with customizable periods and rates.

Generate professional contracts and agreements.

Generate Non-Disclosure Agreements (NDA).

Generate structured reports from data.

Generate certificates and awards with customizable templates.

Generate formal and business letters with templates.

Tao trac nghiem va kiem tra voi diem so.

Convert JSON data to XML format with proper element mapping.

Edit JSON data visually with tree view, inline editing, and validation.

Sort JSON object keys alphabetically or recursively.

Validate and parse JSON5 files that support comments and trailing commas.

View and explore JSON data with collapsible tree visualization.

Clean and repair broken JSON by fixing syntax errors and removing invalid values.

Giai ma va kiem tra token JWT, xem header, payload va chu ky.

Compare two JSON objects and highlight structural and value differences.

Generate SQL INSERT statements from JSON data.

Convert SQL CREATE TABLE and INSERT statements to JSON.

Convert JSON object to URL GET query parameters.

Convert XML data to JSON format with attribute handling.

Convert JSON to Java class definitions with proper types.

Convert JSON to C# class definitions with proper types.

Convert JSON to Python dataclass definitions.

Convert JSON to TypeScript interface and type definitions.

Convert JSON to JavaScript object and class definitions.

Convert JSON to Go struct definitions with JSON tags.

Convert JSON to Dart class definitions with serialization.

Convert JSON to PHP array and class definitions.

Convert JSON to Swift struct definitions with Codable.

Convert JSON to Kotlin data class definitions.

Convert JSON to Rust struct definitions with serde derive.

Convert JSON to C++ class definitions with serialization.

Convert JSON to Objective-C interface and implementation.

Convert JSON to Ruby class definitions.

Convert JSON to Elm type definitions and decoders.

Convert JSON to Postman collection with request items.

Convert Excel (.xlsx) files to JSON format in the browser.

Create animated GIFs from image sequences — 100% local, no upload.

Make photo collages with 6 layouts (2x2, 3x3, horizontal, vertical, 1+2, 1+3) — 100% local.

Permanently redact sensitive text in PDFs by keyword or full page — 100% local.

Edit Excel and CSV files in-browser with live table editing — 100% local.

View, add, edit, delete, and flatten PDF bookmarks/outlines. Export PDF pages as SVG. Uses pdf-lib and pdf.js for local processing.

Chỉnh sửa video cơ bản: cắt, xoay, thêm văn bản lớp phủ, thêm hình mờ. Sử dụng ffmpeg.wasm để xử lý nội bộ trên trình duyệt.

Tự động định dạng và làm đẹp nội dung văn bản.

Thêm khoảng trắng giữa các ký tự tiếng Trung và tiếng Anh.

Batch add prefix and suffix to each line.

Insert characters at the Nth position in text.

Thêm khoảng trắng giữa mỗi ký tự.

Thêm ký hiệu đặc biệt xung quanh văn bản.

Thêm hoặc xóa số dòng khỏi văn bản.

Split article into individual sentences.

Repeat text multiple times with options.

Đảo ngược

Convert text to vertical layout.

Pad text to fixed length with characters.

Remove content inside brackets.

Generate all combinations from multiple texts.

Merge two texts and remove duplicates.

Keep only duplicate lines from text.

Show difference lines between two texts.

Remove all empty lines from text.

Remove all spaces from text.

Convert numbers to English amount words.

Convert numbers to Chinese RMB amount.

Convert text to binary and back.

Convert text to hexadecimal and back.

Chuyển đổi định dạng chữ hoa/thường hàng loạt.

Chuyen doi de dang giua cac don vi thoi gian.

Convert Chinese characters to Pinyin.

Chuyen doi giua chieu rong day va chieu rong nua.

Convert numbers to Chinese characters.

Chuyen doi giua tieng Trung don gian va truyen thong.

Convert text to Mars text style.

Chuyen doi so giua cac co so khac nhau.

Convert IPv4 address to IPv6.

Chuyen doi ma thoat va cac ky tu dac biet.

Convert text to Unicode and back.

Encrypt and decrypt text with DES algorithm.

Generate SHA1 hash of text.

Generate SHA256 hash of text.

Generate MD5 hash for multiple texts.

Generate LRC checksum for text.

Mã hóa

Multi-function text encryption toolkit.

Filter lines containing specific keywords.

Trích xuất

Trích xuất

Trích xuất

Trích xuất

Trích xuất

Validate Chinese ID card numbers.

Làm nổi bật

Trích xuất

Extract license plate numbers from text.

Trích xuất

Trích xuất

Trích xuất

Extract Chinese text from mixed content.

Trích xuất

Trích xuất

Dem so lan xuat hien cua tu khoa trong van ban.

Generate GUID identifiers.

Generate random MAC addresses.

Generate IP address ranges.

Nen va giai nen van ban voi Gzip.

Randomly shuffle the order of text lines.

Sort text lines alphabetically (A-Z or Z-A).

Sắp xếp

Sắp xếp

Reverse the order of all lines.

Thong ke van ban toan dien: ky tu, tu, dong, byte, thoi gian doc.

Dem tan suat cua tung ky tu trong van ban.

Dem tan suat cua tung dong.

Compare two texts line by line and show differences.

Find lines present in both texts.

Combine unique lines from both texts.

Find lines in text A but not in text B.

Generate a sequence of numbers with start, end and step.

Trim leading/trailing whitespace from each line.

Remove all special symbols, keep only letters, digits and Chinese.

Remove all numeric digits from text.

Remove all English letters from text.

Remove line numbers at the start of each line.

Collapse multiple consecutive empty lines into one.

Xoa cac dong chua (hoac khong chua) tu khoa.

Xoa N ky tu dau tien khoi moi dong.

Xoa N ky tu cuoi khoi moi dong.

Keep only first N characters from each line.

Keep only last N characters from each line.

Append a specified string to the end (right side) of every line.

Split text into columns by delimiter.

Merge multiple columns into one text.

Swap two columns in tabular text.

Find common values between two columns.

Extract a specific column from tabular text.

Merge lines from text A and B with separator.

Format and beautify HTML with indentation.

Format CSS with proper indentation and line breaks.

Chuyen doi cac ky tu dac biet thanh/tu thuc the HTML.

Escape HTML special characters.

Remove all HTML/XML tags from text.

URL encode or decode text.

Encode or decode text using Base32 (RFC 4648).

Convert text to ASCII decimal, hex or octal codes.

Keep or remove lines based on character count.

Split text into fixed-length chunks.

Gop dong tu hai van ban xen ke.

Clone each line N times.

Add sequential numbers to each line.

Chuyen doi giua chuoi va mang JSON.

Generate numbers in a specified range.

Generate random Chinese names locally.

Generate random English names locally.

Check JPEG chroma subsampling (4:2:0, 4:2:2, 4:4:4) to verify image quality before uploading — 100% local.

Compare two images pixel by pixel with diff highlighting. Supports overlay, side-by-side, and slider modes — 100% local.

Xây dựng biểu thức cron trực quan với xem trước lịch và mô tả dễ đọc — 100% nội bộ.

Edit and validate .env files with syntax checking, duplicate detection, and sensitive info highlighting — 100% local.

Phân tích dữ liệu CSV với thống kê tự động, biểu đồ phân phối và bộ lọc. Không cần đăng nhập — 100% nội bộ.

Scan QR codes from images or camera. Supports URL, text, WiFi, vCard detection — 100% local, no upload.

Extract dominant color palettes from images. Export as CSS variables, Tailwind config, or JSON — 100% local.

Validate sitemap XML structure, check URLs, detect errors, and analyze URL statistics — 100% local.

Combine multiple images into a CSS sprite sheet with auto-generated CSS code. Supports @2x and ZIP export — 100% local.

Chuyen doi giua cac don vi CSS (px, rem, em, vw, vh) voi gia tri co so tuy chinh.

Check image DPI/PPI resolution for print readiness. Supports JPEG, PNG, TIFF, and BMP — 100% local.

Convert HTML tables to Markdown, CSV, or JSON. Paste HTML source or rich text — 100% local.

Chuyen doi so giua nhi phan, bat phan, thap phan va hex voi truc quan bit tuong tac.

Visualize nested JSON structures as an interactive, collapsible tree. Expand and collapse nodes to explore complex data hierarchies in your browser.

Check Google Core Web Vitals (LCP, CLS, INP) for any URL using Chrome UX Report data.

Remove watermarks from images using color-based selection or region inpainting — 100% local.

Máy nhịp điều chỉnh được với điều khiển BPM (20-300), nhịp điệu, nhịp mạnh và con lắc hình ảnh. Luyện tập với nhịp độ chính xác.

Calculate musical intervals between two notes. Get interval name, semitone count, and consonance level. Supports reverse calculation.

Select a root note and scale type (major, minor, pentatonic, blues, etc.) to see scale notes and piano keyboard visualization.

Playable virtual piano keyboard using mouse or keyboard keys. Supports recording short snippets and playback.

Generate chord progressions by key and style (pop, jazz, rock, classical). Play chords with audio preview and export as text.

Generate standard A4=440Hz or custom frequency pure tones. Supports sine, square, triangle, and sawtooth waveforms with volume control.

Tap along with music to calculate average BPM. Displays tempo terminology (Allegro, Andante, etc.) based on the detected speed.

Real-time chromatic tuner using microphone input. Displays note name and deviation in cents. Supports guitar, violin, ukulele, and piano modes.

Chuyen doi giua not am nhac so (Jianpu) va not nhac nhot.

Practice ear training with random intervals, chords, and scales. Guess the answer and track accuracy statistics with difficulty progression.

Calculate Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation based on age, gender, weight, and height.

Calculate Total Daily Energy Expenditure (TDEE) by multiplying BMR with an activity factor. Estimate daily calorie needs.

Estimate body fat percentage using the Navy method or BMI-derived formula. Input neck, waist, and hip measurements.

Calculate ideal weight range using Devine, Robinson, or Miller formulas. Based on height and gender.

Estimate due date using Naegele's rule (last menstrual period + 280 days). Also shows trimester milestones.

Predict ovulation and fertile window based on menstrual cycle length and last period date.

Calculate recommended daily water intake based on body weight and activity level. Results in liters and ounces.

Estimate your one-rep max (1RM) for bench press, squat, or deadlift using Epley or Brzycki formulas.

Generate printable receipts and invoices by filling in fields. Export as PDF or image for business records.

Tao mau di chuoc bang cach dien thong tin ca nhan va uu tien phan bo tai san.

Generate a power of attorney document specifying the agent and authorized actions.

Resize images to optimal dimensions for Instagram, Facebook, Twitter, LinkedIn, and other social platforms.

Calculate social media engagement rate using likes, comments, shares, and follower count. Compare performance metrics.

Score email subject lines based on length, keywords, emoji usage, and best practices. Improve open rates.

Generate call-to-action button copy based on product, audience, and goal. Get conversion-optimized CTA text.

Generate academic citations in APA, MLA, Chicago, and GB/T 7714 formats. Enter source details and get formatted references.

Compare two text passages for similarity. Calculate overlap percentage and highlight matching sections locally in your browser.

Pomodoro-style study timer with customizable focus and break intervals. Track daily study sessions with local statistics.

Calculate weighted GPA across multiple courses. Supports 4.0, 5.0, and percentage grading scales.

Calculate overall grade based on weighted assignments, exams, and quizzes. See what score you need on remaining assessments.

Split a list of names into random teams or groups. Useful for classrooms, workshops, and team-building activities.

Dem nguoc cho cac bieu thich va bai noi voi canh bao hinh anh/am thanh.

Split restaurant bills including tip. Calculate each person's share based on total, number of people, and tip percentage.

Compare debt avalanche vs snowball payoff strategies. See timeline, total interest, and monthly payments for each approach.

Calculate how long it will take to reach a savings goal. Input target amount, monthly savings, and interest rate.

Calculate personal net worth by summing assets and subtracting liabilities. Track wealth over time.

Calculate average cost per share for multiple stock purchases. Determine break-even price and total investment.

Generate geometric SVG patterns with customizable parameters. Export as SVG code for backgrounds and textures.

Check a website's favicon size, format, and availability. Detect missing or improperly sized icons.

Calculate dimensions for common aspect ratios (16:9, 4:3, 1:1, 9:16). Enter width or height to get the other value.

Chuyen doi giua do phan giai in an (DPI/PPI) va kich thuoc pixel.

Upload a photo and add festive holiday overlays. Create profile pictures with Christmas, New Year, Halloween and more themes.

Generate personalized holiday greetings and wishes. Choose from Christmas, New Year, Chinese New Year, Thanksgiving and more.

Thiet ke va tai xuong the chuc mung ngay le tuy chinh voi chu de, mau sac va loi nhan cua ban.

Enter participant names and randomly pair gift givers. Ensures no one gets themselves. Perfect for Christmas and holiday parties.

Plan your holiday gift list with budget tracking. Add recipients, items, and costs to stay within your spending limit.

Dem so ngay, gio, phut va giay den cac ngay le yeu thich cua ban.

Estimate calories burned during common activities including running, cycling, walking, and swimming. Based on MET values.

Calculate your daily macronutrient needs (protein, carbs, fat) based on your goals — weight loss, maintenance, or muscle gain.

Plan your weekly meals with a simple interface. Track breakfast, lunch, dinner and snacks for each day of the week.

Find the best bedtime or wake-up time based on 90-minute sleep cycles. Wake up refreshed and aligned with your circadian rhythm.

Calculate your Body Mass Index (BMI) using metric or imperial units. See your BMI category and healthy weight range.

Calculate monthly mortgage payments including principal, interest, taxes, and insurance. Compare 15-year vs 30-year loan terms.

Calculate monthly payments for personal or auto loans. See total interest paid and a full amortization schedule.

Generate a complete amortization schedule showing each payment's breakdown into principal and interest over the loan term.

Compare the total cost of renting vs buying a home. Factor in mortgage, taxes, maintenance, rent and more for a data-driven decision.

Estimate how much you need to save for retirement. Enter your current savings, monthly contribution, and target retirement age.

Tao ngan sach ca nhan bang cach theo doi thu nhap va chi tieu theo danh muc.

Estimate your take-home pay after federal and state taxes. Calculate net pay, withholding amounts, and FICA deductions.

Calculate sales tax amounts for US states and international rates. Enter the price and tax rate to get the total including tax.

Calculate monthly student loan payments, total interest, and repayment timelines. Supports standard and income-driven repayment plans.

Generate a basic lease/rental agreement template with landlord and tenant information, terms, and conditions.

Tao tai lieu bien ban cho giao dich phuong tien, thiet bi hoac tai san ca nhan.

Generate uncontested divorce papers template with basic information including spouse details, marital property, and agreements.

Solve quadratic equations, linear equations, and other math problems step by step. Shows the solution process.

Calculate force, velocity, acceleration, kinetic energy, and other physics formulas. Supports SI units and common conversions.

Balance chemical equations by adjusting coefficients. Enter reactants and products to get the balanced equation.

Check English text for common grammar, spelling, and punctuation issues. Get suggestions for clearer writing.

Generate random vocabulary quizzes from a word list. Test your knowledge with multiple-choice or fill-in-the-blank questions.

Track your essay writing time with a built-in timer. Monitor word count, typing speed, and stay focused on your writing task.

Identify world flags by browsing through countries. Learn flag designs, colors, and national symbols from around the world.

Duyệt và nhận diện logo xe hơi từ các thương hiệu ô tô lớn trên toàn thế giới. Tìm hiểu về huy hiệu xe và biểu tượng nhà sản xuất.

Calculate days between two dates, add or subtract days from a date, and find the day of the week for any date.

Randomly scramble the letters in each word of your text. Creates fun, jumbled text for puzzles or word games.

Quick reference for all HTTP status codes with descriptions, categories, and usage examples.

Tai lieu cheat toan dien bieu thuc chinh quy voi cac mau pho thong va kiem tra truc tiep.

Duyệt các màu CSS được đặt tên với giá trị HEX, RGB và HSL. Tìm và sao chép mã màu ngay lập tức.

Quick reference for common keyboard shortcuts across Windows, Mac, and Linux.

Search and browse thousands of emojis by category, keyword, or meaning. Copy with one click.

Chuyen doi thoi gian giua cac mui gio tren toan cau.

Quick reference for ISO country codes, calling codes, currency codes, and capitals worldwide.

Quick reference for HTML tags and attributes with descriptions, examples, and browser support.

Comprehensive CSS properties reference with syntax, values, examples, and browser support.

Essential Git commands cheatsheet with common operations, branching, merging, and troubleshooting.

Markdown syntax cheatsheet with formatting examples for headings, lists, code, tables, and more.

JWT structure explanation with header, payload, signature reference and common use cases.

Look up domain registration information including owner, registrar, creation date, and expiry.

Check if your email or phone number has been exposed in known data breaches.

Phat hinh dau tay trinh duyet cua ban bao gom canvas, WebGL, font va dac diem thiet bi.

Generate a temporary disposable email address to protect your privacy and avoid spam.

Trace the network route from your device to a target host, showing each hop and latency.

Preview your website on different device screen sizes including mobile, tablet, and desktop.

Expand shortened URLs to see the final destination and check for redirects before clicking.

View archived snapshots of any webpage from the Wayback Machine and internet archives.

View and analyze HTTP Archive (HAR) files to inspect network requests and responses.

Kham pha cac ten mien con cho bat ky ten mien nao bang DNS enum va nhat ky minh bach chung chi.

View HTTP response headers for any URL, including security headers and caching directives.

View the HTML source code of any webpage with syntax highlighting and formatting.

Look up postal codes and zip codes for countries worldwide with area information.

Search SWIFT/BIC codes for international bank transfers with branch details.

Validate European VAT numbers and verify company tax registration status.

Remove unwanted pages from PDF documents and save the result as a new file.

Scan documents using your camera with edge detection and perspective correction to PDF.

Generate professional price quotes and estimates with customizable templates.

Tao va thiet ke the danh nghe nghiep voi mau tuy chinh va xuat.

Generate professional letterheads with your company branding and contact information.

Tao don dat hang chuyen nghiep voi chi tiet mat hang, so luong va gia.

Calculate monthly installment payments for loans with interest rates and terms.

Calculate the number of business days between two dates, excluding weekends and holidays.

Chuyen doi goc giua do, radian, gradian va vong voi ket qua tuc thi.

Calculate area, perimeter, and volume for common geometric shapes and solids.

Check spelling in your text with suggestions for corrections. Supports English language.

Test your typing speed and accuracy with timed exercises. Measure WPM and error rate.

Find synonyms, antonyms, and related words for any term with an integrated thesaurus.

Write and edit Markdown with live preview, syntax highlighting, and export options.

Preview fonts with custom text samples, adjustable size, and Google Fonts integration.

Apply cartoon and artistic effects to your photos with edge detection and color quantization.

Check color contrast ratios for WCAG accessibility compliance (AA and AAA standards).

Compress audio files to reduce size while maintaining quality. Supports MP3, WAV, OGG.

Convert MIDI files to sheet music notation and other musical formats.

Calculate your heart rate zones for optimal training based on age and resting heart rate.

Calculate running pace, speed, and estimated finish time for any distance.

Calculate medication dosage based on weight, age, and drug-specific factors.

Test your vision with Snellen chart, color blindness test, and astigmatism screening.

Predict the adult height of a child based on parents height and growth patterns.

Interactive periodic table with element properties, atomic data, and chemical information.

Draw tarot cards and get interpretations for love, career, and personal growth.

Generate character names for RPGs, fantasy stories, and roleplay games.

Find baby names by origin, meaning, and gender with popularity rankings.

Tao o chu tam gia tu danh sach tu va goi y cua ban.

Tao bieu do Gantt cho quan ly du an voi time line va phu thuoc.

Duyệt ngày lễ và lễ hội từ các quốc gia trên toàn thế giới với ngày tháng và mô tả.

Discover your MBTI personality type with this free 16-personality test. No signup required.

Take the scientifically validated Big Five (OCEAN) personality test online for free.

Find your Enneagram type among 9 personality types. Free online test.

Find your zodiac sign by birth date. Learn about your star sign traits and characteristics.

Check zodiac sign compatibility for love and relationships. Free compatibility checker.

Get your free daily horoscope based on your zodiac sign. Updated daily.

Calculate your life path number and destiny number from your birth date.

Assess your stress level with this quick psychological test. Free and private.

Discover your love language with the 5 love languages test. Improve your relationships.

Test your emotional intelligence (EQ) with this free online assessment.