Security & Password

Batch File Checksum Generator

Generate SHA-1, SHA-256 or SHA-512 checksums for many files at once.

Supported formats: Any file. Each file is read fully into memory, so very large files (over ~1 GB) may fail. MD5 isn't offered.

Any file

Batch File Checksum Generator

Up to 500 MB
Options

Hashes each file with the browser's built-in Web Crypto. The sha256sum format can be checked with `sha256sum -c`. Each file is read fully into memory, so very large files (over ~1 GB) may fail. MD5 isn't offered.

Good to know

Frequently asked questions

How do I use it?

Choose your files, adjust the options and press “Generate checksums”. When it finishes, download the result.

How does it work?

Hashes each file with the browser's built-in Web Crypto. The sha256sum format can be checked with `sha256sum -c`.

Are there limitations?

Each file is read fully into memory, so very large files (over ~1 GB) may fail. MD5 isn't offered.

Are my files uploaded?

No. Files are processed on your device and never sent to our servers. No account is needed.