Acutis Hash generator — MD5, SHA-1, SHA-256, SHA-512
Paste text or drop a file and get every checksum at once. Everything runs in your browser — nothing is uploaded.
Results (lowercase hex)
What is a hash, and why generate one?
A hash (or checksum) is a short fingerprint of any data. Change a single byte and the hash changes completely. People use them to verify a download wasn't corrupted or tampered with, to compare two files without opening them, and to look a file up in malware databases. SHA-256 is the modern default; MD5 and SHA-1 still appear on older download pages but are no longer considered secure against deliberate collisions.
Want to know if a file is dangerous? Use the file reputation checker — it hashes locally and looks the fingerprint up against antivirus databases, still without uploading the file.
FAQ
Which hash algorithms does this generate?
It produces MD5, SHA-1, SHA-256, SHA-384 and SHA-512 at once, for either pasted text or a file you drop in. Results are shown as lowercase hex.
Which hash should I use to verify a download?
SHA-256 is the modern default and the safest choice. MD5 and SHA-1 still appear on older download pages but are no longer considered secure against deliberate collisions.
Is my file uploaded when I hash it?
No. All hashing runs locally in your browser using your machine's own crypto, so the file never leaves the page.
Is this free and private?
Yes. It's free, needs no sign-up, and runs entirely in your browser. Nothing is uploaded or stored.
Hashes catch a bad file. Acutis catches a bad network.
Checksums tell you if a file is intact. Acutis Go does the same for your connection — a 60-second check that says plainly whether a problem is your machine, your network, or the internet. No guessing. Free.
Get Acutis Go — freeMore IT tools: My IP · DNS lookup · IP blacklist · All tools →