MD5 hash generator
Paste anything below — the MD5 digest updates as you type. Computed locally in your browser; the text never leaves this page.
About MD5
MD5 is a 128-bit hash function published by Ron Rivest in 1992. It maps any input to a fixed 32-character hexadecimal digest. It is fast and ubiquitous, but cryptographically broken — practical collisions exist — so never use it for passwords, signatures, or any security-sensitive comparison.
Safe uses for MD5
- Cache keys and ETags derived from request bodies.
- Checksums of files from a trusted source.
- De-duplicating non-adversarial blobs.
- Reproducing legacy MD5 checksums for older systems.
Do not use MD5 for passwords, tokens, signatures, or any check where someone could craft a malicious input. Use bcrypt/Argon2 for passwords and SHA-256/BLAKE3 for integrity against attackers.
MD5 via API
Need MD5 from a server or another language? The Oxide Hash & Encryption Toolkit computes it (and SHA-256/512, BLAKE3, bcrypt, Argon2) at the edge in under 5 ms.
curl -X POST https://hash-toolkit1.p.rapidapi.com/v1/hash \
-H "Content-Type: application/json" \
-H "X-RapidAPI-Key: YOUR_KEY" \
-H "X-RapidAPI-Host: hash-toolkit1.p.rapidapi.com" \
-d '{"algorithm":"md5","input":"hello world"}'FAQ
What is an MD5 hash?
MD5 is a 128-bit hash function published by Ron Rivest in 1992. It maps any input to a fixed 32-character hexadecimal digest. It is fast and ubiquitous, but cryptographically broken — practical collisions exist — so never use it for passwords, signatures, or any security-sensitive comparison.
Is MD5 secure?
No, not for security. Collisions can be generated cheaply, so MD5 must not be used for password storage, digital signatures, or integrity checks against an adversary. It is still perfectly fine for non-adversarial uses: cache keys, ETags, checksums of trusted files, and de-duplication.
Does my text get uploaded?
No. The MD5 is computed entirely in your browser. The text you type never leaves your machine and nothing is logged on our end.
How long is an MD5 hash?
An MD5 digest is 128 bits, rendered as exactly 32 hexadecimal characters.
Can I compute MD5 from an API?
Yes. The Oxide Hash & Encryption Toolkit /v1/hash endpoint accepts algorithm:"md5" (plus SHA-256, SHA-512, BLAKE3, bcrypt, Argon2) and returns the digest in under 5 ms at the network edge.