File Checksums and Comparison
Stream local files through MD5, SHA-1, SHA-256, SHA-384 and SHA-512, compare complete digests and export TXT or JSON.
Enabling local controls…
0 files · 0 bytes
Each8MiB, combined64MiB, maximum16 files. Streams files sequentially without upload. Worker startup10s /processing1s per file. Equal hashes are not byte-by-byte comparison; MD5 /SHA-1 do not resist adversarial collisions.
Choose files and run to see complete results.
How to use this tool
Explicitly select up to16 local files, choose a comparison algorithm and run. Review equal-digest groups or compare an expected checksum. All processing stays in this browser.
When not to use it
Each file8MiB, combined64MiB; sequential bounded Workers with10s startup/1s processing per file. Hashes do not establish provenance or file safety. MD5 and SHA-1 are collision-broken and unsuitable for adversarial integrity. Equal digests are not a byte-by-byte comparison.