kitio.aiAdded Nov 5, 2026
Crit
FreeBrowser review tool for coding agents' plans, diffs and running apps
What is Crit?
Crit opens what a coding agent produced, such as a plan, a multi-file diff or a page on localhost, in your browser so you can comment on exact lines or elements. The agent then reads those comments and fixes them, and you see the changes round by round.
Different review modes cover markdown plans and docs, branch and PR diffs with syntax highlighting, diffs grouped into themed chapters, live running apps where you pin comments to DOM elements, and static HTML artifacts. It works with Git, Jujutsu and Sapling and handles stacked PRs.
Crit writes a structured review file that any agent able to read files can act on, so there is no API or SDK to adopt. Install commands exist for Claude Code, Cursor, GitHub Copilot, Codex, Gemini CLI, OpenCode, Windsurf, Amp and others. It is open source, runs locally and can be self-hosted.
Features
- Line comments on plans and docs
- Local diff review
- Story view of changes
- Comments on running apps
- Round-by-round diffs
- Works with any agent
Tags
Releases
+ Submit new release- Listed
Crit was added to the directory.
Organization
Crit
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Free
- Paid options from
- 100% free
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Pros and cons
Pros
- Works with almost every coding agent
- Runs locally, no vendor lock-in
- Easier than reading diffs in a terminal
Cons
- Adds another tool to the review loop
- Install step differs per agent
- Hosted features need sign-in
Prompts & results
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Q&A
What is Crit?
Crit opens what a coding agent produced, such as a plan, a multi-file diff or a page on localhost, in your browser so you can comment on exact lines or elements. The agent then reads those comments and fixes them, and you see the changes round by round.
How do I install Crit?
On macOS you can install it with Homebrew using brew install crit, then run the install command for your agent, such as crit install cursor.
Which version control systems does Crit support?
It detects changes in Git, Jujutsu (jj) and Sapling repositories.
How much does Crit cost?
Crit is 100% free.
Is there a free version of Crit?
Yes. Crit is completely free to use.
What are the main features of Crit?
Line comments on plans and docs, Local diff review, Story view of changes, Comments on running apps, Round-by-round diffs, Works with any agent.
Who makes Crit?
Crit is made by Crit.
What are the best alternatives to Crit?
Popular alternatives include Traycer, Kodus, Emdash.