Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes using the Web Crypto API.
Hashed with the browser's native crypto.subtle API. Nothing here is ever sent to a server.
For informational and educational purposes only — not professional or technical advice, and not a substitute for consulting a qualified professional about your specific situation. TrueMeasureKit is not liable for decisions made based on these results. See our Terms of Service.
Why no MD5
MD5 and this tool's algorithms all serve the same basic purpose — turning input into a fixed-length fingerprint — but MD5 is cryptographically broken: it's practical to construct two different inputs that produce the same hash, which defeats its use for anything security-sensitive. Browsers deliberately don't implement it in the Web Crypto API for that reason. SHA-256 is the standard modern choice for checksums, data integrity checks, and cryptographic use; SHA-1 is included here for compatibility with older systems but shouldn't be used for anything requiring collision resistance.
Frequently asked questions
Which hash algorithm should I use?
SHA-256 is the standard general-purpose choice today — widely supported, fast, and not known to be broken. SHA-1 is included for compatibility with legacy systems but is cryptographically broken and shouldn't be used for security purposes.
Can a hash be reversed back to the original text?
No — cryptographic hashes are one-way functions by design. The same input always produces the same hash, which is useful for verifying data integrity, but you can't recover the original input from the hash alone.