File Hash Checker (SHA-256)
Upload a file to compute its SHA-256 hash. Paste an expected hash to verify file integrity. Uses Web Crypto API for secure computation.
Features
Compute SHA-256 hash instantly
Compare against expected hash
Drag-and-drop file upload
Copy hash to clipboard
How to Use
- Open the File Hash Checker
- Upload a file via file picker or drag-and-drop
- View the computed SHA-256 hash
- Paste an expected hash to compare
FAQ
What is SHA-256?
SHA-256 is a cryptographic hash function that produces a 256-bit (64 hex character) digest. It's widely used for file integrity verification.
How do I verify a file's integrity?
Upload the file, then paste the expected hash (from the download source). The tool shows whether they match.
Is SHA-256 secure?
Yes, SHA-256 is considered secure and is used in SSL certificates, blockchain, and digital signatures.
Does this work offline?
Yes, once the page is loaded, hashing works entirely in your browser without any network requests.