Add the text, code or data.
01Developer toolFormatted output
Hash Generator
SHA-256, SHA-1 and SHA-512 of any text.
100% FreeRuns instantlyNo watermark
- 1Paste inputAdd the text, code or data.
- 2AdjustChoose formatting or generation options.
- 3RunProcess everything in the browser.
Private by designProcessed on your device where possible.
Works on any deviceDesktop, tablet and mobile browsers.
No installationOpen the page and start working.
Always free coreUse the free plan for everyday tasks.
How to use Hash Generator
Choose formatting or generation options.
02Process everything in the browser.
03Copy or download the clean result.
04Your files stay private
Your work is processed locally in your browser where possible and is never added to a Vootkit upload library.
Learn more about privacyA hash is a fixed-length fingerprint of any input. The same text always produces the same hash, and changing a single character produces an entirely different one — which is what makes it useful for checking that a file or message arrived unaltered.
What Hash Generator does
Produces SHA-256, SHA-1 and SHA-512 hashes of your text at once, using the browser’s built-in Web Crypto.
MD5 is deliberately not offered. It is broken — collisions can be produced on demand — and providing it invites people to use it for exactly the security purposes it can no longer serve.
The algorithms offered
| SHA-256 | 64 hex characters — the current default choice |
|---|---|
| SHA-1 | 40 hex characters — legacy compatibility only, broken since 2017 |
| SHA-512 | 128 hex characters — larger digest, same family |
| MD5 | Deliberately omitted — broken and unsafe |
| Determinism | The same input always gives the same hash |
| Reversibility | None — a hash cannot be turned back into the input |
| Implementation | Web Crypto, built into the browser |
Detailed steps
- Type or paste your text.
- All three hashes appear as you type.
- Copy whichever you need — SHA-256 unless something specifically requires otherwise.
Worth knowing
Hashing a password directly is not how password storage works. Passwords need a slow algorithm with a per-user salt — bcrypt, scrypt or Argon2 — precisely because SHA-256 is fast, and fast is exactly wrong when someone is guessing billions of candidates a second.
Frequently Asked Questions
Why is MD5 missing?
Because it is broken. Two different inputs can be made to produce the same MD5 hash cheaply, which destroys the property everything relies on. It survives in old file checksums, but offering it here would mostly help people use it where it is unsafe.
Should I use SHA-1?
Only if something you cannot change requires it. Practical collisions were demonstrated in 2017 and browsers dropped it from certificates. SHA-256 is the default for anything new.
Can I reverse a hash to get the text back?
No. Hashing is one-way by construction. Short or common inputs can be found by guessing against precomputed tables, which is a different thing — and the reason salting exists.
Is my text sent to a server?
No. Hashing uses the browser’s Web Crypto implementation, so the text never leaves the page — which matters, since people paste things here precisely because they are sensitive.
Is Hash Generator free?
Yes. The Vootkit free plan includes 5 tool runs a day. Upgrade to Vootkit Pro for unlimited daily use, an ad-free workspace and saved workflows.
Are my files uploaded?
No. Hash Generator runs entirely in your browser — your file is processed on your own device and never sent to a server. There is nothing for us to store or delete.
Do I need to install anything?
No. Hash Generator works in any modern browser on desktop, tablet or phone. Open the page and start.
How often can I use it? Is there a daily limit?
On the free plan you get 5 tool runs a day. When you reach the limit you'll see a prompt to upgrade, and it resets the next day. Vootkit Pro removes the cap entirely for unlimited daily use.
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This tool processes everything locally in your browser. You can disconnect from the internet after the page loads and it will still work.