Checksum Manifest
Build a SHA256SUMS file for a set of files so recipients can verify a download.
Files & batch Client-side WebCrypto
Tool preview
How to use it
- 01
Drop the files.
- 02
Press build.
- 03
Download the manifest next to your release.
Limitations
- ! The manifest is only as trustworthy as the channel you publish it on.
- ! Very large files are limited by memory.
FAQ
How does someone verify with this file?
Run sha256sum -c SHA256SUMS in the folder containing the downloads.
Why SHA-256 and not MD5?
MD5 collisions are practical to construct, SHA-256 is not.
Is anything uploaded?
No.
Files never leave your device
Processing happens in your browser using the File API, WebAssembly and Web Workers. There is no upload endpoint.
Technical details
- Processing
- Client-side
- Implementation
- WebCrypto
- Category
- Files & batch
- Network requests
- None while processing