MD5 Checksum Generator and Checker
Create the 32-character MD5 digest of text, or compare a calculated value with a checksum you already have.
This tool hashes the exact UTF-8 text entered above. It does not trim spaces or remove line breaks.
What an MD5 checksum is
MD5 converts any input into a 128-bit digest, normally written as 32 hexadecimal characters. The same input produces the same digest, while even a small change usually produces a different result. This makes MD5 useful for identifying accidental changes in legacy workflows.
How to check a checksum
- Copy the original text into the first field without changing capitalization, spaces, or line breaks.
- Paste the expected 32-character MD5 value into the comparison field.
- Select Generate checksum. A match means both digest values are identical.
A matching checksum supports an integrity check, but it does not prove who created the content or that the content is safe.
Appropriate uses
Legacy file verification, duplicate detection, cache keys, and compatibility with systems that still publish MD5 values.
Security limitation
MD5 is collision-broken. Do not use it for passwords, digital signatures, certificates, or any case where an attacker could deliberately alter the input. Prefer SHA-256 for modern integrity checks and Argon2id or bcrypt for password storage.
Need to verify a file?
Use the file MD5 checker to calculate a checksum from a selected file without uploading it.