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File integrity manifest generator

Hash a folder into a checksum manifest you can store, and later verify files against it with changed, missing, and not-in-manifest kept separate.

Drop files or a folder to start.

A manifest records what files looked like when you made it. It proves nothing about that moment by itself; store the manifest somewhere the files are not, or a changed file and its manifest change together. Hash files again after any legitimate edit, or the next check will call the file changed. SHA-256 and SHA-512 are the default choices. MD5 and SHA-1 catch accidents, not tampering. Everything runs in this tab; no file or digest is uploaded.
OptionsGenerate manifest

More hashing & encryption tools

- Checksum manifest (/crypto/hash-manifest)
- Hash generator (/crypto/hash)
- HMAC (/crypto/hmac)
All hashing & encryption tools (/crypto)

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Canonical HTML: https://nutter.tools/crypto/file-integrity-manifest-generator
Markdown version: https://nutter.tools/crypto/file-integrity-manifest-generator.md
Plain-text version: https://nutter.tools/crypto/file-integrity-manifest-generator.txt
Agent index: https://nutter.tools/llms.txt