Launched this week
Tessera
Load a URL and see it on phones/tablets/desktops in canvas
9 followers
Load a URL and see it on phones/tablets/desktops in canvas
9 followers
See your web app on phones, tablets, and desktops at once — live, synced viewports at true size and DPR. Capture evidence, share mosaics, or run tessera check for agent-friendly overflow findings.
Finally something that shows me the same page on a phone, a tablet, and my ultrawide at once without me dragging windows around. The mosaic capture is a nice touch for handoff to QA.
The synced viewports are genuinely useful for spotting layout breaks side by side, and I love that the mosaic export idea feels practical for handing off screenshots to teammates without juggling three tabs.
Synced viewports at true DPR are such a lifesaver for debugging responsive layouts. Captured a mosaic of a tricky nav and shared it with my PM in seconds.
Love how the viewports actually sync live instead of just rendering static snapshots, makes spotting responsive issues feel instant and honest.
The synced scroll across viewports feels so natural to use, like having three devices on my desk without the cable mess. Love that you baked in overflow detection for agents too, that's a really thoughtful addition.
the synced viewports at true DPR is such a thoughtful detail, basically exactly what you'd want when checking responsive layouts across devices