File Checksum Lookup

Calculate CRC32, SHA-256, SHA-384, and SHA-512 checksums for an uploaded file.

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Frequently asked questions

Where are files processed?

CRC32, SHA-256, SHA-384 and SHA-512 run in your browser without uploading the file. CRC32 detects accidental changes; use SHA-256 or stronger to compare integrity.

Limits, cancellation and comparison

Files up to 100 MiB are read in 256 KiB chunks with progress and cancellation. Empty files are supported.

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