File Hash Calculator
Calculate MD5, SHA-1, SHA-256 and SHA-512 checksums of files up to 4 GB locally, and compare with a published hash.
Runs in your browser (background thread)File → Checksums
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How to use the File Hash Calculator
- Paste or type your File into the input area.
- Adjust the options above the editor if the tool offers any.
- Review the Checksums result, then copy it or download it as a file.
Privacy and limitations
- Your data is processed on your device and is not uploaded to any server.
Frequently asked questions
Is my file uploaded?
No. The file is read in 4 MB chunks by a background worker in your browser, so even large files are hashed without uploading or freezing the page.
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