File hash generator
Verify file integrity with secure hashes calculated in your browser.
Cryptographic hashes are calculated locally using the Web Crypto API. Files are never uploaded.
1. Add your files
Choose a file from your device or drag it here.
Choose files
or drag and drop them here
Your files stay on this device.
You can also paste files
How to use File hash generator
Verify file integrity by calculating a cryptographic hash in your browser. Select a file, adjust the available options, then download your result. Processing happens locally in this browser.
Supported formats
Any file type supported by the browser file picker.
Frequently asked questions
Which algorithms are available?
SHA-256 is the default, with SHA-384 and SHA-512 also available.
Are file contents uploaded?
No. Web Crypto calculates hashes locally.