📖 How to Use
Free online file hash checker. Calculate MD5, SHA-1, SHA-256, SHA-512 and other hash values for your files. Supports drag-drop upload, large file chunking, and multi-hash computation. Pure frontend, files never uploaded.
⚡ Technical Details
All processing is done locally in your browser using pure JavaScript. No data is uploaded to any server, ensuring your privacy and security.
💼 Use Cases
Developers, writers, and data analysts can use this tool for various text processing needs. It's designed to be simple, fast, and private.
❓ FAQ
❓ Can file hash verify file integrity?
Yes. After downloading a large file, use this tool to compute its hash and compare with the official hash. If they match, the file hasn't been tampered with.
❓ Which hash algorithms are supported?
SHA-1, SHA-256, and SHA-512 using the browser's Web Crypto API. MD5 is not natively available in Web Crypto - use SHA-256 instead.
❓ Are files uploaded to a server?
No. All hash computation is done locally using Web Crypto API. Files never leave your device.
❓ What is the maximum file size?
Up to 2GB is recommended. Large files are processed efficiently without excessive memory usage.
❓ How do I know if a file is tampered?
Compare the computed hash with the original hash from the official source. If identical, the file is intact. Even a single byte change produces a completely different hash.