Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes.
Hash Generator
Developer tool running locally in browser
What does Hash Generator do?
Hash text with every common algorithm at once and compare the results side by side. SHA hashes use the browser Web Crypto implementation, so they match exactly what your server-side library produces.
How to Use Hash Generator
- 1Enter your textHashes compute as you type.
- 2Pick your algorithmAll are shown; copy the one you need.
- 3Compare if verifyingPaste an expected value for a match check.
Key Features
- All five common algorithms computed at once
- Uppercase and lowercase hex output
- Compare against an expected hash with a match indicator
- HMAC mode with a secret key
- Clear warnings on which algorithms are no longer safe for security use
Frequently Asked Questions
Which hash algorithm should I use?
SHA-256 for general integrity checking and digital signatures. Never use plain SHA or MD5 for passwords — those need a deliberately slow algorithm such as bcrypt, scrypt or Argon2.
Are MD5 and SHA-1 broken?
For security purposes, yes. Practical collision attacks exist for both, so neither should be used for signatures or certificates. They remain fine as non-security checksums for cache keys and deduplication.
Can a hash be reversed?
Not mathematically — hashing is one-way. But short or common inputs can be found by brute force or rainbow table lookup, which is exactly why password hashing needs salting and a slow algorithm.
Why do I get a different hash than another tool?
Almost always a difference in the input: a trailing newline, different line endings, or a different character encoding. Hashes are byte-exact, so a single invisible character changes everything.
Hashing happens locally with the browser Web Crypto API. Your input is never transmitted, so it is safe to hash values you would not want to send over a network.
Related Tools
SHA-256 Generator
Generate a SHA-256 hash from any text.
MD5 Generator
Generate an MD5 checksum — for integrity, never for security.
SHA-512 Generator
Generate a SHA-512 hash from any text.
Base64 Encoder
Encode text to Base64, with UTF-8 and URL-safe support.