🔑

Gratuit File Hash / Checksum

Compute SHA-256, SHA-1, SHA-384, and SHA-512 checksums of any file and verify a download against its published hash. The file is never uploaded.

Aucune limite de taille de fichierLes fichiers restent privésAucune connexion requiseGratuit pour toujours

Déposez des fichiers ici ou cliquez pour parcourir

Any file aucune limite de taille de fichier

Parcourir les fichiers

Vos fichiers ne quittent jamais votre appareil. Tout le traitement se fait localement dans votre navigateur.

Compute SHA-256, SHA-1, SHA-384, and SHA-512 checksums of any file — and verify a download against its published hash. The file is read locally and never uploaded.

Optimize for your platform

Verify a Download's Checksum Get the SHA-256 of a File Check File Integrity Confirm Two Files Are Identical Publish a Checksum with Your File

Comment ça marche

A checksum is a fingerprint of a file. Publishers list one next to a download so you can confirm the file you got is exactly the one they released — not corrupted or tampered with. This computes them in your browser.

1
You pick a file
It's read into memory locally — never uploaded, no matter the size.
2
Web Crypto hashes it
The browser's native crypto.subtle computes SHA-256, SHA-1, SHA-384, and SHA-512 in a single pass over the bytes.
3
You compare to the published hash
Paste the checksum from the download page; it's matched against all four algorithms and a clear ✓/✗ tells you if the file is authentic.
4
Copy any hash
Grab a checksum to publish alongside your own files.

Verifying a sensitive download (an installer, a disk image, a backup) shouldn't require uploading it anywhere. The hash is computed entirely on your device with native browser crypto.