Checksum

Upload a file to compute MD5, SHA-1, and SHA-256 checksums. Paste an expected hash to verify integrity.

MD5SHA-1SHA-256Client-Side

Click to select a file

All processing happens in your browser

Frequently Asked Questions

Is my file uploaded anywhere?

No. All processing happens in your browser using the Web Crypto API. Your file never leaves your device.

What hash algorithms are supported?

MD5 (via JavaScript implementation), SHA-1, and SHA-256 (via Web Crypto API).

How do I verify a file?

Upload the file, then paste the expected hash. The tool will compare it against the computed checksums and show a match or mismatch.

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