R3
A Local Code Review Tool for You and Your AI Agent
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
I built r3 to scratch my own itch when reviewing long design doc and planning doc from AI. The chat interface is inherently bad at tracking multiple pieces of feedback across different parts of a document, so I created a lightweight local web UI to organize the review process.I have been using it on my own projects for one week, and it has made giving structured feedback to AI much easier. I thought others working with AI coding agents might find it useful too.I'd love to hear what you think and any feedback you have!
HN · launched Jul 10, 2026 · 5 upvotes (top 89%) · 0 views
Niche: automated code review tools · 204 launches, 7 in the last 7 days ▼ -22% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- AI feature
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 204 launches in automated code review tools →
Could you build this?
Yes This is a lightweight local web UI tool designed to review long markdown or design docs and collect structured feedback for AI agents, which is easily built with React and a local Node/Python server.
Discussion
2 comments analyzed.
Competitors mentioned: VSCode built-in code review, GitHub PR review interface, Claude skills for code review
Concerns raised: VSCode becoming unsuitable for code review in AI era
Feature requests: Group files by folders in review interface, Inline hints/squiggly lines for review feedback, Local pre-PR review capability
Competitors
Other products that read as similar to this one : 665 launches clear the similarity bar, closest 8 shown.
Attention rank: #587 of 666 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 254 days after the earliest competitor.
- r3 · ph · 2026-10-31 · 2 upvotes · similarity 0.55
- Agent.reviews · hn · 2026-10-07 · 72 upvotes · similarity 0.50
- Revise · hn · 2026-03-22 · 85 upvotes · similarity 0.49
- adamsreview · hn · 2026-05-11 · 85 upvotes · similarity 0.48
- git-lrc · hn · 2026-06-16 · 9 upvotes · similarity 0.47
- I made a AI Code Review tool that knows how your company works · hn · 2026-03-23 · 5 upvotes · similarity 0.47
- Multi-Agent Code Review · hn · 2025-11-04 · 5 upvotes · similarity 0.46
- AI Code Review CLI · hn · 2026-03-04 · 5 upvotes · similarity 0.46
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.