# Deff

8 Hacker News commenters recommended Deff and 2 criticized it, November 2025 to November 2026. It was recommended in 2 of 13 months.

**Verdict:** Free terminal app for side-by-side git diff review, with file skipping, extra context and comments to send changes back. Critics say its UI takes too much terminal space.

## Why people recommend it

- More context around changes (2 comments): "I personally prefer a bit more context. Thats why I added a bit more of it to deff." ([source](https://news.ycombinator.com/item?id=47172032)) "most of them did not have enough context for my workflow tbh" ([source](https://news.ycombinator.com/item?id=47172215))

## Alternatives hackers recommend

- [difftastic](https://hackerapproved.com/p/difftastic.md): 23 recommend
- [Weave merge tool](https://hackerapproved.com/p/weave.md): 20 recommend
- [Mergiraf](https://hackerapproved.com/p/mergiraf.md): 19 recommend
- [sem](https://hackerapproved.com/p/sem.md): 19 recommend
- [Meld](https://hackerapproved.com/p/meld.md): 12 recommend

## Cite as

Hacker Approved, "Deff", https://hackerapproved.com/p/deff/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).