Multi Hash
Multi Hash calculates several cryptographic digests (MD5, SHA-1, SHA-256, SHA-512 and others) for the same input simultaneously. It is handy for integrity checks, fingerprinting and learning how hashes differ.
Key Features
- Many algorithms in one run
- Text and file input
- Drag-and-drop file hashing
- Show hex and base64 digests
- Local computation, no upload
Use Cases
- Verify a downloaded file against a published checksum
- Fingerprint a string for deduplication
- Compare algorithm outputs for teaching
- Detect accidental changes
How to Use
- Enter text or drop a file
- Select the algorithms you need
- Compute and read the digests
- Copy the one you need
Practical Tips
- Use SHA-256 or stronger for security; MD5 and SHA-1 are broken for collisions
- Recompute after any change to confirm integrity
- Hashes are one-way; you cannot recover the input
FAQ
- Which hash is secure?
- SHA-256 or SHA-512 for security; avoid MD5 and SHA-1 for protection.
- Can I recover the input from a hash?
- No, cryptographic hashes are one-way by design.