You built it with AI. Now hear what people think.
Send one link to your co-founder, users, investors or advisors. They comment anywhere in the UI without an account, and your coding agent ships the fix to the same link.
Feedback comes back as screenshots in a chat. It belongs on the prototype.
People won't sign up just to take a look.
They don't have to. Share a link, or add a password, and they comment in any browser. Nothing to install.
Feedback arrives without context.
A screenshot in a chat, a note in an email. In critlab people comment anywhere in the UI, and each comment keeps a screenshot of what they saw and their screen size.
You are the whole team.
Your coding agent reads every open comment over MCP or the crit CLI, ships the fix as a new version on the same link and resolves the comment.
An early product should not be public.
Prototypes are never indexed, and each version runs on its own isolated origin. Share it with a link, add a password, or keep it to your workspace.
Build, share, fix. Without leaving your agent.
Moves to the next tab every few seconds. Choose a tab to stop.
A terminal: crit publish puts the prototype online and prints its share link. Tina and Leo comment on two elements. Then, in Claude Code, the agent pulls both comments over MCP, commits the fix, publishes version 2 to the same link and resolves both comments.
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Build it your way
With Lovable, Bolt, Claude Code, Cursor or anything else that gives you a static build.
- 2
Publish one link
One command, or ask your agent. You get a private, live link to send to anyone.
- 3
They comment anywhere in the UI
Each comment stays where they left it, with a screenshot and the screen size.
- 4
Your agent ships the fix
It reads the comments, publishes a new version to the same link and resolves them.
What you get. For you and the people you ask.
Sharing, your way.
For your team and for guests: an open link, a password, or members only. Reviewers need no account.
Get feedback.
Press C and comment anywhere in the UI. Each comment comes with a screenshot of what the reviewer saw.
Built for agents.
Over MCP or the crit CLI, your agent publishes, reads what reviewers saw, and resolves.
Every version, one link.
Switch versions from the viewer's bar. Each comment stays with the version it was left on.
Desktop, tablet and mobile.
Switch the prototype between three screen sizes. Every comment shows the breakpoint it was left on.
Canvas view.
Your screens side by side on one canvas, by breakpoint, with the links between them. Click one to open it.
Replies, reactions, resolve.
Reviewers talk it through: your agent replies, reacts when it's on it, and resolves once shipped.
Notifications.
Know when a reviewer comments and when your agent ships the fix. In the app, by email, or as a digest.
Questions
Anything else? Write to us at support@critlab.app