For passwords or digital signatures, prefer SHA-256 or stronger. MD5 is cryptographically broken, though it remains useful for file checksums and legacy systems that require it.

Is my input sent to a server?

All processing runs in your browser using a local JavaScript implementation of MD5.

What is the length of an MD5 hash?

MD5 produces a 128-bit output, displayed as 32 hexadecimal characters. The length is fixed regardless of how long the input is.

When is MD5 still acceptable to use?

MD5 is fine for non-security uses like detecting accidental file corruption, generating cache keys, or matching the format published alongside a legacy download. Prefer SHA-256 anywhere security matters.

MD5 Hash Generator

Paste any text to generate its MD5 hash. MD5 is not suitable for cryptographic security, use it only for non-security checksums and legacy compatibility.

Input

MD5 Hash

Hash appears here…

ALGORITHM

MD5

DISPLAY

Output length

32 hex characters

Processed locally

How it works

MD5 is computed in JavaScript because the browser's Web Crypto API does not expose it. The implementation follows RFC 1321 and produces a 128-bit digest formatted as a 32-character hex string. MD5 remains valid for fingerprinting files, generating short cache keys, or comparing against legacy systems that still publish MD5 checksums alongside downloads.

Processing runs in your browser

All hashing happens inside your browser tab. Our servers are not involved at any point. You can verify this yourselfin your browser's DevTools Network tab.

Technical specification

MD5 is specified in RFC 1321 (R. Rivest, 1992). It produces a 128-bit (16-byte) digest, typically encoded as 32 hexadecimal characters. MD5 is no longer considered cryptographically secure for collision resistance. It is retained here for checksums and legacy compatibility only.

Output size: 128 bits (32 hex characters)
Standard: RFC 1321 (IETF)
Browser API: JS implementation (SubtleCrypto does not support MD5)
Security status: Broken, collision attacks practical

Related operations

For encoding the result as Base64 for transport, try Base64. To generate strong random secrets to hash, use the password generator. For random unique identifiers without a hash collision risk, see the UUID generator.

Frequently asked questions

Is MD5 secure?: For passwords or digital signatures, prefer SHA-256 or stronger. MD5 is cryptographically broken, though it remains useful for file checksums and legacy systems that require it.
Is my input sent to a server?: All processing runs in your browser using a local JavaScript implementation of MD5.
What is the length of an MD5 hash?: MD5 produces a 128-bit output, displayed as 32 hexadecimal characters. The length is fixed regardless of how long the input is.
When is MD5 still acceptable to use?: MD5 is fine for non-security uses like detecting accidental file corruption, generating cache keys, or matching the format published alongside a legacy download. Prefer SHA-256 anywhere security matters.