Compute MD5, SHA-1, SHA-256, SHA-512 hashes from text or files — entirely in your browser.
No data is ever sent to a server. All hashing runs in your browser.
Drag any file in and get instant checksums for verification.
Four algorithms computed simultaneously as you type.
Copy any hash to clipboard with a single click.
Paste an expected hash and instantly see which algorithm matches.
After first load the tool works without an internet connection.
No. All hashing is done entirely in your browser using the Web Crypto API and a pure JavaScript MD5 implementation. Your text and files never leave your device.
MD5, SHA-1, SHA-256, and SHA-512. All four are computed simultaneously from the same input so you can compare across algorithms at a glance.
Yes. Click the upload button to select any file. The file is read with the FileReader API and hashed in your browser — nothing is uploaded. SHA-1, SHA-256, and SHA-512 use the native Web Crypto API; MD5 uses a lightweight JavaScript implementation.
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