Checksum manifest verifier
Check selected files against a SHA-256 manifest and report changes, missing files and unlisted files.
Accepted files: see this tool’s format requirements. Multiple files supported. Up to 512 MiB in total.
Up to 2,000 files, 512 MiB total and 256 MiB per file. Paste SHA256SUMS or the Happytails JSON v1 format. Unknown, missing and mismatched files prevent a complete match. Files are never changed or fetched from manifest paths. Up to 1,000,000 characters. Review the settings before running.
Your result
How to use Checksum manifest verifier
- Choose the folder you want to inspect.
- Review the options and run the check.
- Read the result and download the report.
Useful next steps
Choose one local folder
Use the folder picker and confirm the files you want to inspect. Nested paths are preserved. Choosing another folder replaces the selection.
Review the result
Check selected files against a SHA-256 manifest and report changes, missing files and unlisted files.
Download your report
Save the report or manifest to keep the results. Your source files are unchanged, and the processing stays in your browser.