Code review, but for designs.
Automatically preview .pen design changes in every pull request.
Before/after comparisons, zero config.
Three steps to visual design reviews
Commit .pen files to your repo like any other code.
Action detects changed frames automatically.
See before/after screenshots directly in PR comments.
Just add the workflow file. No API keys, no setup, no maintenance.
Commit .pen files to your repo like any other code.
Action detects changed frames automatically.
See before/after screenshots directly in PR comments.
Just add the workflow file. No API keys, no setup, no maintenance.
Free for everyone, forever
We're not here to nickel-and-dime you.
Just use it. No API key needed.
Your .pen files are never stored. They're fetched from GitHub, rendered in memory, and discarded immediately. Only the resulting screenshots are cached for 1 week — plenty of time to review your PRs. After that, GitHub's CDN keeps them visible in comments.