Generate MD5, SHA-1, SHA-256, and SHA-512 hashes of any text, entirely in your browser.
About this tool
Generates MD5, SHA-1, SHA-256, and SHA-512 hashes of any text, entirely in your browser — useful for checksums, cache keys, or comparing two files' contents without revealing the contents themselves.
Frequently asked questions
Which hash should I use?
For anything security-sensitive (password storage, integrity verification against tampering), use SHA-256 or SHA-512. MD5 and SHA-1 are both cryptographically broken — collisions are practical to generate — and are included here only for legacy compatibility, like matching an old checksum.
Can a hash be reversed back to the original text?
No — hashing is one-way by design. The same input always produces the same hash, which is what makes hashes useful for comparison, but there's no operation that recovers the input from the hash alone.