ClarityKitFind a tool

FILES WORKSPACE · FREE & PRIVATE

File Checksum Calculator

Calculate a SHA-256, SHA-384 or SHA-512 hash to check file integrity.

✓ Files stay on your device✓ No account needed✓ No daily usage quota
1

Choose a file

or drag and drop it here

Any file type · 20 MB total

    2

    Adjust your options

    How to use File Checksum Calculator

    1. Choose a supported file using the file picker or drag and drop.
    2. Set hash algorithm.
    3. Select Process, review the result, and download it.

    The method, explained

    The Web Crypto digest function hashes the exact file bytes. Identical bytes produce the same hexadecimal digest.

    A WORKED EXAMPLE

    Compare the SHA-256 result with a checksum published by a software vendor.

    What to keep in mind

    Up to 20 MB input in total. ZIP extraction is limited to 100 files and 50 MB expanded data. Encrypted archives, unsafe paths and suspicious expansion ratios are rejected.

    Common questions

    Are my files uploaded?

    No. This tool processes files in your browser. Files are not sent to ClarityKit or an external API. Reset the tool or close the tab to release the working files.

    What should I do if processing fails?

    Check the supported formats and limits above. Try a smaller, unencrypted file and keep the tab open until the result is ready.

    Built and checked by ClarityKit. File privacy · Open-source notices