Hash Generator
Calculate hash values for text and files
Enter text or select a file to compute hashes
About the hash generator
Compute MD5, SHA-1, SHA-256 and other hashes from text or files. Use it to detect tampering, verify download integrity, or compare checksums. SHA family hashes are computed quickly via the browser's built-in Web Crypto API.
All computation runs on your device; the text or files you provide are never uploaded. Even large files are processed locally, so hashing confidential data is safe.
Frequently asked questions
- When should I use MD5 vs SHA-256?
- MD5 and SHA-1 are fast but not recommended for security. Use SHA-256 or stronger for tamper detection and security purposes.
- Are files uploaded to a server?
- No. Files are read and hashed inside your browser and are never transmitted.
- Does the same input always give the same hash?
- Yes. Hash functions are deterministic, so identical input always yields the identical hash.