Hash Generator
MD5, SHA-1, SHA-256 & more
Hash Generator: MD5, SHA-1, SHA-256 & more. A free, browser-based tool from DevToolbox that runs entirely on your own device: no upload, no account, no tracking.
About the Hash Generator
Produce cryptographic hashes of text using the browser's built-in Web Crypto implementation, so the digest is computed by the same audited code that secures the rest of the browser.
Generation uses the browser's cryptographic random source where randomness matters, so values are suitable for identifiers and secrets rather than being predictable pseudo-random output.
What you can do with it
- MD5 hash
- SHA-256 hash
- SHA-512
- Online hash calculator
How to use it
- Set how much you want and any options that apply.
- Generate, and the result appears immediately.
- Regenerate as many times as you like; nothing is stored or reused.
- Copy the output when you are happy with it.
Questions
- Can I use this to hash passwords?
- Not for storage. A general-purpose hash is designed to be fast, which is exactly wrong for passwords. Use bcrypt, scrypt or Argon2 with a per-user salt on the server. This tool is for checksums, fingerprints and integrity checks.
- Is MD5 or SHA-1 still safe?
- Not against an adversary. Both have practical collision attacks and should not be used where forgery matters. They remain fine for detecting accidental corruption and for matching against legacy checksums.
- Is my data uploaded anywhere?
- No. The tool is JavaScript that runs in the tab you already have open, and DevToolbox has no backend to send anything to. You can open the network tab and watch: after the page and its script load, nothing is sent while you work.
Related tools
The Hash Generator sits in Data & Productivity, one of the 90 tools on DevToolbox.