Inspect file signatures and magic bytes instantly. Free online tool to identify unknown file types in your browser.
Файл Заголовок Анализатор is a free online безопасность 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.
Все инструменты безопасности работают локально без передачи данных внешним серверам. Генерация паролей, вычисление хешей и другие чувствительные операции выполняются полностью в браузере.
When testing security tools, sending sensitive data like passwords or tokens to a remote server defeats the purpose. We built this tool to run entirely in your browser using the Web Crypto API — your data never leaves your device.
Да, полностью бесплатный и без регистрации.
Да, работает в мобильных браузерах с поддержкой касания.
Безопасность
Полностью безопасны. Все проверки выполняются локально в вашем браузере без отправки запросов или данных во внешние системы.
ToolPure supports MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hash algorithms. All hashing is performed locally using the Web Crypto API, ensuring your data never leaves your browser.
Yes, you can decode JWT tokens to inspect header and payload, and generate new JWT tokens with custom claims. The tool supports HS256, HS384, and HS512 signing algorithms.
Yes, password generation uses the Web Crypto API getRandomValues() function, which provides cryptographically secure random numbers. Generated passwords are not stored or transmitted anywhere.
Yes. Файл Заголовок Анализатор 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.