Verifying that a file you downloaded or received is actually the one you were expecting is often overlooked or too time-consuming to do. At the same time, it has become very easy to get your hands on a file that has been tampered with, due to the mass increase of malicious webpages and other actors.
This tool aims to solve that. Collision comes with a simple & clean UI, allowing anyone, from any age and experience group, to generate, compare and verify MD5, SHA-256, SHA-512, SHA-1, Blake3, CRC32 and Adler32 hashes.
Screenshots
Observed history
| App | Change | Version | When ↓ |
|---|
No observed changes yet.
The initial import establishes a baseline. Future version changes will appear here.
Browse the app catalogue →Upstream releases
Release notes supplied by the developer. These dates are not Flathub package publication times.
3.14.17 May 2026
- Collision has moved to Codeberg!
- Fixed a critical security issue with the Nautilus extension, if you use it, please update it as soon as possible!
- Updated translations
3.14.07 Feb 2026
- Added the ability to export the results as a markdown table
- Added the ability to disable hash functions
- Updated translations
3.13.019 Jan 2026
- Added a beautiful drop overlay when drag and dropping files
- Fixed issues with the checksum text input
- Title will be hidden now when unused
- Files pending to be hashed will now reflect that in the progress bar
- Collision will now gracefully handle closing windows that have pending operations
3.12.114 Jan 2026
- Fixed progressbar not being accurate
- See previous changelog for more info