MD5 Hash of a String
Get the MD5 hash of any string instantly. Useful for checking fixtures, cache keys and legacy checksums.
Part of the free MD5 Hash Generator. Runs in your browser — nothing is uploaded.
MD5 Hash of a String
Many older APIs and cache layers still identify a payload by its MD5. Hash the string here and compare it with the value your service stored.
Worked example: A cache-key style string
Input
user:42:profile
MD5
2ce9557181042f1d3d9c940ae8897867
Practical tip
If you control the system, migrate cache keys to SHA-256. MD5 collisions are cheap enough to cause surprises.
How to use this MD5 Generator
- 1Use the live tool above — it runs entirely in your browser and never uploads your data.
- 2Paste the sample from the worked example, or use your own input.
- 3Copy the result, then adapt the same steps in your editor, script, or pipeline.
MD5 Hash of a String FAQs
Can two strings share an MD5?
Yes. MD5 collisions are practical. Do not rely on MD5 to prove two files are the same in a security sense.
Is MD5 deterministic?
Yes. The same bytes always produce the same digest.
More MD5 Generator pages
- Convert Text to an MD5 HashConvert any text string to a 32-character MD5 hash. Instant, UTF-8 accurate, runs in your browser.
- MD5 Checksum of a FileCalculate the MD5 checksum of a local file without uploading it. Compare the digest with a published MD5.
- Verify an MD5 ChecksumCheck whether text or a file matches a published MD5 checksum. Paste the expected hash and compare.
- Uppercase MD5 HashGenerate an MD5 hash in uppercase hex (A–F). Some Windows tools and older APIs expect this format.
- MD5 of an Empty StringThe MD5 of an empty string is d41d8cd98f00b204e9800998ecf8427e. Confirm it and hash other empty-like inputs.
- MD5 vs SHA-256Compare MD5 and SHA-256 on the same input. Learn why SHA-256 replaced MD5 for checksums and signatures.
- MD5 File Hash CalculatorA browser md5sum: pick a file, get its MD5, compare with a published checksum. No upload.
- MD5 Is Not a Password HashSee what an MD5 of a password looks like, and why you must use Argon2, bcrypt or scrypt instead.
- MD5 Hash LengthAn MD5 hash is always 32 hexadecimal characters (128 bits), regardless of input size. Confirm it with the generator.