MD5 Generator
Type or paste any text and get its 128-bit MD5 checksum immediately. The hash is computed in your browser, so nothing you enter is ever sent to a server.
MD5
Enter a value to see the result.
About this tool
MD5 (Message-Digest Algorithm 5) turns an input of any length into a fixed 32-character hexadecimal string. The same input always produces the same hash, and changing a single character produces a completely different result.
MD5 is still widely used for file integrity checks and non-security fingerprints such as cache keys or ETags. It is no longer considered safe for passwords or digital signatures because practical collision attacks exist — use SHA-256 or bcrypt for those cases.
Frequently asked questions
- What is an MD5 hash?
- An MD5 hash is a 128-bit fingerprint of your data, shown as 32 hexadecimal characters. It is deterministic: the same input always yields the same hash, so it can be used to check whether two pieces of data are identical.
- Can an MD5 hash be reversed?
- No. MD5 is a one-way function, so there is no algorithm that turns a hash back into the original text. Short or common inputs can still be found using rainbow tables, which is one reason MD5 should not protect passwords.
- Is MD5 secure in 2026?
- Not for security purposes. Researchers have demonstrated practical collisions — two different inputs producing the same MD5 hash — since 2004. Use SHA-256 for integrity and bcrypt, scrypt or Argon2 for password storage.
- Is my text uploaded anywhere?
- No. The hash is computed by JavaScript running on your own device. Nothing you type leaves your browser, so you can safely use the tool offline once the page has loaded.
- Why is the MD5 hash always 32 characters?
- MD5 always outputs 128 bits regardless of the input size. Written in hexadecimal, each character represents 4 bits, so 128 ÷ 4 = 32 characters.