ViewFinder: a browser canvas to review deployed prototypes across breakpoints
ViewFinder lets designers and engineers load any deployed prototype URL and view it at five real device breakpoints, scaling the iframe so responsive layouts fire exactly as on the device. A filmstrip at the bottom lets you step through screens while a markdown spec panel stays pinned beside each view, linking requirements to the UI. All data lives in the browser’s localStorage, so no backend is needed, and you can export a JSON board for team sharing. It offers a lightweight, self‑hosted alternative to commercial design‑review tools.
View on GitHub →bluffcharge/ViewFinder