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a fast local diff viewer

845 starsTypeScript

Codiff, a local diff review tool

by cpojer·May 17, 2026·31 points·21 comments
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AI Analysis

●MidShip It

GUI wrapper around git diff with LLM walkthrough, but delta and GitHub already do this.

Strengths
  • •LLM walkthrough mode suggests review order for large diffs
  • •Inline comments exportable as Markdown for LLM follow-ups
  • •Native windows for multiple repositories simultaneously
Weaknesses
  • •Built by LLM in 16 minutes suggests limited technical depth
  • •Crowded category with GitHub Desktop, delta, and Cursor already covering this
Target Audience

Developers reviewing LLM-generated code locally

Similar To

delta · GitHub Desktop · Cursor

Post Description

Nowadays I review a lot of code locally that was written by llms. I used to review my own code using git + delta. It started to feel limiting with the amount of code written by llms.

When looking at a large diff on Friday I pointed an llm at diffs.com and trees.software and told it to build an app. It only took 16 minutes, is extremely fast for large diffs, beautiful and minimal.

Today I polished it up and added all the features that I need. It has file filters, search, an llm walkthrough mode, and review comments that you can paste back into your llm.

I will be using Codiff a lot, and can finally review the large diff from Friday that led me to build this If you like it, fork it!

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