ToolJovia
Files

Checksum Manifest Workbench

Create or verify explicit SHA-256/SHA-512 filename manifests against selected local files.

✓ Browser-local processing
Files are read locally and are not uploaded.
Processed in this tab. Up to 100,000 characters unless this tool states a smaller limit.

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How to use Checksum Manifest Workbench

Compare expected digests with exact selected bytes. Manifest paths are never used to discover files or access the host filesystem; missing and unused selections remain visible.

  1. Enter files, manifest: hexadecimal digest, two spaces, exact filename.
  2. Choose the settings for checksum manifest workbench, then run the tool.
  3. Review the result and any limitations before copying or downloading it.

Good to know

  • 100 files,20MiB per file,50MiB total and1000 manifest records. Single-volume safe relative names only; duplicate selected names are refused.
  • Supports the declared two-space digest format, not complete BagIt, escaped GNU filenames or signatures. No file path is resolved automatically.
  • Processing is local. Output is limited to 1,000,000 text characters unless a stricter file limit is stated.

Common questions

Does a matching digest prove the download is authentic?

No. It proves agreement with the supplied digest. The manifest itself needs an independently trusted source.

Is this input sent to a server?

No. The application processes this input inside your browser tab and does not save it to persistent storage.

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