◇ On your device
File checksum
Calculate a SHA-256 checksum and compare it with an expected value. MD5 and SHA-1 are legacy compatibility algorithms with known collision weaknesses; do not use them for security-sensitive integrity. Prefer SHA-256 or SHA-512.
Result
How it works
- Choose the file you want to check.
- Check the available options, then select “Run tool”.
- Compare the displayed result with the value you expect.
Related tools
File integrity manifest
Create a downloadable JSON inventory of selected file names, sizes and SHA-256 checksums.
Identifier Checksum Validator
Identifier Checksum Validator. Run the workflow locally with explicit inputs and bounded deterministic logic; review assumptions before operational use.
Create ZIP
Bundle selected files in a ZIP archive without uploading them.