Mode · preview

Review the HTML your agent generated.

Your agent produced a landing page, a dashboard, or a mockup as a static HTML file. Crit renders it in a browser and lets you click any element to leave a comment — no dev server, no build step.

Static HTML iframe Click-to-comment Asset siblings served No dev server

How it works.

Step 01

Agent generates HTML

Your agent produces an HTML file — a landing page, a dashboard, a mockup. Run crit on the file to open it in preview mode.

Step 02

Crit renders the file

The HTML renders in an iframe with sibling assets (CSS, images, JS) served from the same directory. It looks exactly as intended.

Step 03

You click elements to comment

Click any element in the page to pin a comment to it. Crit anchors it by CSS selector so it survives when the agent regenerates the file.

Step 04

Hit Finish

The agent gets element-specific feedback, regenerates the file, and Crit reloads with the updated preview.

What you get.

Rendered, not raw

The HTML file renders in an iframe — you see the page as a user would, not the source code. Crit serves sibling CSS, images, and JS automatically.

Click any element to comment

Click a button, a heading, an image — Crit highlights it and anchors your comment by CSS selector. Minor layout changes don't break your feedback.

No server, no build step

Point crit at an HTML file and it works. No dev server to start, no dependencies to install, no build pipeline.

Works with any HTML artifact

Landing pages, email templates, generated dashboards, design mockups — anything self-contained as HTML.

5-second install.

Single binary. No account, no config, no dependencies.

$ brew install crit

Or download a pre-built binary from GitHub Releases.