MD5 Hash Generator Developer
Produce the MD5 checksum of any text, instantly.
MD5 Hash Generator is a free online tool that produce the MD5 checksum of any text, instantly. It runs entirely in your web browser using plain JavaScript, so files are processed on your own device and never uploaded to a server. There is no sign-up, no file size limit imposed by the site, no watermark and no paid tier.
- Price
- Free — no account, no quota, no watermark
- Category
- Developer
- Where it runs
- In your browser, on your device
- Files uploaded
- None
- Technology
- plain JavaScript
- Settings
- None — it just works
- Works offline
- Yes, after the first visit
About MD5 Hash Generator
MD5 produces a 128-bit digest and has been cryptographically broken since 2004, when practical collisions were demonstrated. Two different files with the same MD5 can now be produced in seconds on a laptop. It remains perfectly good for what it is still widely used for — detecting accidental corruption, deduplicating files, cache keys — and completely unsuitable for anything an adversary can influence.
How to use it
- Paste the text you want to run through md5 hash generator.
- There is nothing to configure — the result updates as you type.
Under the hood
| Runs on | plain JavaScript — runs the whole thing |
Questions
Can I use MD5 for passwords?
No. Beyond the collision problem, MD5 is fast, which is the opposite of what password hashing needs. Commodity hardware computes billions per second. Use bcrypt, scrypt or Argon2, all of which are deliberately slow and salted.
Is MD5 still fine for checksums?
For accidental corruption, yes — a truncated download will not accidentally collide. For verifying a file has not been deliberately tampered with, no. Use SHA-256 for that.