Verify File Integrity with Hash
Generate a SHA-256 checksum for a downloaded file and compare it to the publisher's checksum to confirm it's unmodified.
File Verification tips
Software publishers post SHA-256 checksums alongside downloads. Generate the hash of your downloaded file and compare — they must match exactly.
A matching checksum proves the file arrived intact and hasn't been tampered with by a man-in-the-middle or a corrupted download server.
SHA-256 and SHA-512 are the modern standards. If a site only provides an MD5 or SHA-1 checksum, those are less secure but still useful for corruption detection.
All hashing is done in your browser — your file is never transmitted anywhere. You can safely hash sensitive files offline.
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