Midstream instantly turns your E2E tests into a catalog of live, clickable demos. Supercharge your code review, AI agents, and collaboration.
6 checkpoints
Jump straight into the moments that matter. Stop scrolling through diffs trying to imagine the user experience — click through the actual result in a live, sandboxed demo attached to every PR.
Be confident in what your AI agents are shipping. When agents write code, the diff is only half the story. See exactly what the user will experience before it merges.
Get feedback from teammates, beta testers, and more with zero friction demos of the essential moments. No staging environments, no setup instructions, no "works on my machine."
Enhanced checkpoint capture with support for complex auth flows and multi-tab scenarios....
Browse and launch live demos of Cal.com’s most important user flows, powered by Midstream....
Demo links in PR comments now show thumbnail previews and checkpoint descriptions....
“We stopped writing lengthy PR descriptions. Now we just say ‘click the demo.’”
“Our designers finally review the real thing, not screenshots.”