About Hexwilt
A small tool for breaking test files
Hexwilt corrupts files in your browser so you can test how an app, parser, or workflow handles damaged input. It does not upload your files. It does not require an account.
Local processing
Corruption runs on your device. This site is not a place to send confidential files to a server.
Named modes
You can choose modes such as byte flip, header-preserve, truncate or insert, block shuffle, and a guaranteed-break option, then set intensity from 1 to 100 percent.
Free to use
The live tool is free. There is no paid checkout on this site. Pages may show ads.
What this site is not
Hexwilt is not an AI model, a cloud API, or a company directory. This page does not list a team roster, user counts, awards, or an office address, because those would not be facts we can show here.