Side by side
GNU Diffutils vs Guiffy
Both stand on diff and merge tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan
Visit GNU Diffutils Free trial LinuxMacWindows
Guiffy provides broad encoding support, large-file handling, folder comparison, and optional three-way merging. Its announced end-of-life date is a major consideration for new purchases.
Visit GuiffyThe facts
| GNU Diffutils | Guiffy | |
|---|---|---|
| Free plan | Yes | A free trial |
| Open source | Not published | Not published |
| Runs on | Not published | Linux, Mac, Windows |
| Lowest paid plan | Not published | Guiffy Pro: $24 per user, paid once |
| Plans published | None | 2 |
| Maker | Not published | Not published |
| Website | gnu.org | guiffy.com |
| On diff and merge tools | #28 of 29 | #24 of 29 |
GNU Diffutils: what it does well
Guiffy: what it does well
- Supports over 150 encodings
- Handles files larger than 2 GB
- Includes recursive folder comparison
- eXpert provides three-way merging
- One license covers unlimited platforms
What to know first
- Products reach end of life December 31, 2026
- No free plan is offered
- 21-day evaluation is time-limited
- Support and updates last 12 months
Alternatives to GNU Diffutils Alternatives to Guiffy The whole list