MD5 Hash Generator
Generate MD5 hash from any text input. Useful for checksums and data verification.
How to use
- 1 Type or paste the text you want to hash into the input field.
- 2 The MD5 hash is computed instantly in your browser.
- 3 Click Copy to grab the 32-character hex digest.
- 4 Note: MD5 is not cryptographically secure — use it for checksums and non-sensitive integrity checks only.
Key features
- Computes MD5 hash entirely in your browser
- Instant output — updates as you type
- Produces a 32-character hexadecimal digest
- Useful for checksums and non-sensitive data fingerprinting
What is MD5?
MD5 (Message Digest 5) is a hashing algorithm designed by Ron Rivest in 1991. It produces a fixed 128-bit (32-character hex) fingerprint of any input. The same input always produces the same hash — and even a one-character change produces a completely different one.
MD5 is cryptographically broken and should never be used for passwords or digital signatures. Collision attacks have been demonstrated, meaning two different inputs can produce the same hash. However, MD5 remains widely used for non-security tasks like checksums, cache keys, and data deduplication.
What MD5 is Still Good For
File integrity checksums
Verify a downloaded file arrived intact by comparing its MD5 hash to the one published by the source.
Database deduplication
Hash content to detect duplicate records without storing or comparing the full text.
Cache keys
Generate short, consistent cache keys from longer strings like URLs or query parameters.
Gravatar avatars
Gravatar still uses the MD5 hash of a lowercase email address to map users to their avatar image.
ETags and HTTP caching
Some servers use MD5 hashes to generate ETag headers for HTTP cache validation.
Quick data fingerprinting
Fingerprint API responses or config files to detect changes without a line-by-line comparison.
Hashing Algorithms at a Glance
| Algorithm | Output length | Secure? | Typical use today |
|---|---|---|---|
| MD5 | 128 bit / 32 hex | No | Checksums, cache keys, deduplication |
| SHA-1 | 160 bit / 40 hex | No | Legacy Git commit IDs, old TLS certs |
| SHA-256 | 256 bit / 64 hex | Yes | Passwords, blockchain, TLS, code signing |