A free hash calculator that computes MD5 and SHA (SHA-1, SHA-256, SHA-384, SHA-512) for text or uploaded files in your browser. No data is sent to any server. Useful for checksums, integrity checks, and quick hashing during development. Best used in modern browsers that support the Web Crypto API for SHA hashes.

Why Use This Hash Generator?

• Private: All hashing runs locally; nothing is uploaded.
• Text and files: Hash a string or choose a file to hash its contents.
• Multiple algorithms: Get MD5 and SHA-1, SHA-256, SHA-384, SHA-512 in one go.
• Copy each value: One-click copy for any hash result.

Key Features

• Input: Type or paste text, or select a file via the file input.
• Algorithms: MD5 (pure JS), SHA-1 and SHA-256/384/512 (Web Crypto API).
• Copy: Each hash has a copy button.
• No backend: Entirely client-side; works offline after load.

How it Works

Text is converted to UTF-8 bytes; file input is read as ArrayBuffer. MD5 is computed with a pure JavaScript implementation (RFC 1321). SHA hashes use the browser’s crypto.subtle.digest(). Results are shown as lowercase hex. Browsers without Web Crypto will show “N/A” for SHA hashes.

Try the Hash Generator

Enter text or pick a file, then click Hash. Copy any of the generated hashes. For large files, hashing may take a moment. Recommended for use in Chrome, Edge, or Firefox.