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Image Format Converter

Convert image formats online for free — JPG, PNG, WebP, AVIF, GIF, SVG, BMP, TIFF, ICO and more. High-quality conversion with batch support, custom quality settings, 100% browser-based processing.

Image Format Converter is a free online image tool that works right in your browser — whatever you enter is processed locally and never sent to a server. No installation, no signup; works on both phone and desktop, ready to use instantly.

Image processing is done locally via Canvas API and WebAssembly with batch support. Preview results instantly before downloading.

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How to use

  1. 1 Open the Image Format Converter tool page.
  2. 2 Paste your text, URL, or data into the input area.
  3. 3 Choose the operation mode and parameters.
  4. 4 Run the tool and review the result.
  5. 5 Copy or download the result.

Why we built this tool

We noticed most image compressors upload files to servers. Since privacy is our core principle, we built this tool to process everything locally using Canvas API and WebAssembly.

About Image Format Converter: what you should know

Photographers and hobbyists sharing work online. Before uploading to a gallery, social feed, or portfolio, optimize the file so it loads fast for visitors while still looking sharp on high-resolution screens.

Key features

  • Quality vs Size Control — Adjust the output parameters to balance visual quality and file size. See the result instantly and pick the setting that fits your use case.
  • One-Click Download — When you are happy with the result, download the processed image in one click. No watermarks, no sign-up walls, no forced account creation.
  • Direct File Upload — Drag and drop or select an image from your device. The tool supports common formats and gives you a live preview before any processing happens.

Common use cases

  • Preparing Images for Social Media — Get your images to the exact dimensions or format a platform requires. One quick adjustment and your post is ready to publish.
  • Standardizing a Batch of Photos — When photos come from different cameras and phones, make them consistent — same format, same orientation — before adding them to a gallery or document.

Frequently Asked Questions

Is this tool free?

Yes, completely free with no signup required.

Can I use it on mobile?

Yes, it works on mobile browsers with touch support.

What category does this belong to?

Image

Will image processing reduce quality?

The tools provide quality controls so you can balance file size and image quality.

What image formats are supported for compression and conversion?

ToolPure supports JPG, PNG, WebP, AVIF, GIF, and BMP formats. You can convert between any of these formats and adjust quality from 10% to 100% for optimal file size.

Can I batch process multiple images at once?

Yes, you can upload and process up to 100 images simultaneously. Batch operations include compression, format conversion, and resizing with a single quality setting applied to all files.

Does image compression use lossy or lossless algorithms?

Both options are available. For JPG and WebP, you can choose lossy compression with adjustable quality. For PNG, lossless compression is used. AVIF supports both modes depending on your quality settings.

Is Image Format Converter safe? Is my data uploaded or stored?

Yes. Image Format Converter is a pure front-end tool: whatever you type or paste is processed only in your browser's memory and never sent to a server. It disappears as soon as you refresh or close the page.

🔒 Privacy & Security：All processing happens locally in your browser. Files are never uploaded or stored.

🔒 Privacy: All processing happens locally in your browser. Your files and data never leave your device — no upload, no server, no tracking.

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