Nceptia

SHA-256 file checksum

Compare fingerprints with published checksums or check two copies match—your files never leave this tab.

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Drop files here or click to add
Any file type. Add or remove from the queue, then compute.

    Results

    Verifying downloads and releases

    File hashes help you confirm that a download matches what the publisher intended. If a developer posts a SHA-256 checksum beside an installer or ISO, comparing it in this tool tells you whether the file stayed intact during transfer.

    Integrity, not trust

    A matching hash proves the bytes are the same; it does not prove the source is safe or honest. That distinction matters when you are downloading software, because verification protects against corruption and tampering, while trust still depends on the publisher.

    When checksums matter

    Open-source projects publish SHA-256 digests beside installers. Matching hashes proves the file was not corrupted in transit; it does not guarantee the publisher is trustworthy.

    Security hygiene

    Verify installers against vendor-published SHA-256 to detect tampering.

    Verifying open-source releases

    Maintainers publish SHA-256 digests beside tarball downloads. After downloading, hash the file locally and compare character by character before executing installers on a production machine.

    After a mismatch

    If hashes differ, re-download from the official mirror, verify file size, and check whether the publisher rotated checksums after a silent re-release.

    Quick start

    1. Select a file — Choose an installer, ISO, or archive from disk.
    2. Wait for SHA-256 — Hashing runs in the browser — large files may take a moment.
    3. Compare to publisher hash — Match the digest against the vendor's published checksum before running the file.