Hash Generator
Generate the MD5, SHA-1, SHA-256 and SHA-512 hash of any text or file at once. Perfect for verifying a download’s checksum or generating a digest — and because it runs in your browser, the file never leaves your device.
- 🔒 100% private — no uploads
- 🆓 Free, no watermark
- 📱 Works on any device
How to generate a hash
- 1
Add text or a file
Type or paste text, or switch to “Hash a file” and drop a file in. Everything is read locally in your browser — never uploaded.
- 2
Get every hash at once
MD5, SHA-1, SHA-256 and SHA-512 are computed instantly and shown together, so you can grab whichever one you need.
- 3
Copy or compare
Copy any hash with one click, or paste a published checksum next to a file’s hash to confirm the download is intact.
Why use Hash Generator?
MD5, SHA-1, SHA-256 & SHA-512
All four common algorithms at once, for text or for any file — no need to choose up front.
Verify downloads privately
Check a file’s checksum against the one a project publishes, without uploading the file anywhere.
100% private
Everything runs locally in your browser with JavaScript. Your input is never uploaded, stored or seen by anyone — it even works offline once the page has loaded.
Works on any device
No install and no account. Runs in any modern browser on Windows, macOS, Linux, Android or iPhone.
What a hash actually is
A cryptographic hash is a fixed-size fingerprint of data: feed in a byte or a gigabyte and you get the same short digest length back (64 hex characters for SHA-256). The same input always produces the same hash, while changing a single bit produces a completely different one — which is what makes hashes perfect for spotting any modification, accidental or malicious.
Verifying a download in three steps
Projects publish a checksum next to their download links precisely so you can check your copy: drop the downloaded file here, compute its SHA-256, and compare it with the published value (paste one next to the other — they must match exactly). A mismatch means the file was corrupted in transit or isn’t the file the project released. Because hashing runs in your browser, you can verify even a sensitive file without it going anywhere.
Frequently asked questions
Which hash should I use?
For verifying downloads or integrity, use SHA-256 or SHA-512. MD5 and SHA-1 are fine as quick checksums but are cryptographically broken — don’t rely on them where someone could deliberately forge a match.
Can I hash a file without uploading it?
Yes. Switch to “Hash a file” and drop a file in — it’s read locally and hashed in your browser, so you can verify a download’s checksum without sending the file anywhere.
Is MD5 still safe to use?
For spotting accidental corruption, yes — it’s a fast, compact checksum. But MD5 is cryptographically broken: attackers can craft two inputs with the same MD5. For anything security-sensitive, compare SHA-256 or SHA-512 instead; all four are computed here.
Is my data uploaded to a server?
No. The tool runs entirely in your browser, so whatever you paste stays on your device. It’s safe for tokens, secrets and confidential data, and works offline once loaded.