I built a video optimization app using Next.js, React, and Electron, with FFmpeg as the backend. All processing runs locally; FFmpeg must be installed.

The app exposes an explicit, deterministic pipeline instead of presets. You can control speed (with proper setpts / chained atempo), codec, CRF/quality, bitrate, FPS, resolution, and output format.

Electron handles filesystem access and FFmpeg execution via a minimal IPC bridge, while the UI focuses purely on configuration and orchestration.

The project is open source, with the code available on GitHub.

https://github.com/ivanglpz/v0-video-optimizer