🔐 Hash Generator & Verifier
Generate and verify cryptographic hashes (MD5, SHA1, SHA256, SHA512, Bcrypt)
Generate Hash
Verify Hash
📚 Hash Algorithms
- MD5: 128-bit (deprecated for security)
- SHA-1: 160-bit (deprecated for security)
- SHA-256: 256-bit (secure, recommended)
- SHA-512: 512-bit (most secure)
- Bcrypt: For password hashing only
✨ Use Cases
- ✓ Verify file integrity
- ✓ Password hashing with bcrypt
- ✓ Generate checksums
- ✓ Create digital signatures
- ✓ Secure data storage
About Hash Generator & Verifier
Generate MD5, SHA-1, SHA-256 and SHA-512 digests with TMPMailer. Input text is sent to the TMPMailer server for processing. Hashes are one-way fingerprints, not password storage.
How to use Hash Generator & Verifier
- Paste the text or file content you want to fingerprint.
- Pick the algorithm (SHA-256 is the safe default for integrity checks).
- Copy the hex digest into your manifest, test fixture or comparison script.
Common use cases
- Verify that two copies of a file are byte-identical.
- Create deterministic keys for cache-busting or test fixtures.
- Check a checksum published by a software vendor.
Common questions
Which hash should I use for passwords?
None of the raw algorithms here. Passwords need a slow, salted algorithm such as bcrypt, scrypt or Argon2 — use the bcrypt generator instead of a plain SHA digest.
Can a SHA-256 hash be reversed?
No. Hashing is designed to be one-way. Short, guessable inputs can be matched against a precomputed table, which is why unsalted hashes offer little protection.
Why do MD5 and SHA-1 still appear?
They remain useful for legacy checksums and non-security fingerprints, but collisions are practical, so do not use them for signatures or password storage.
Keep going
Browse the full tools directory for related utilities, or open a free temporary email to run a signup end to end.