Show HN: FFmpeg WebCLI – Full FFmpeg in Browser, Offline PWA, No Uploads(WASM)

Category: devtools

Tags: ffmpeg, video-editing, pwa, webassembly, offline-first

Score: 6.3/10 (Innovation: 5, Technical: 7, Documentation: 7, Utility: 6)

FFmpeg WebCLI is a browser-based video editor that runs FFmpeg entirely in the browser via WebAssembly, enabling offline video processing without server uploads. It packages dozens of common video operations into a clean PWA with live previews and raw command access, making powerful FFmpeg functionality accessible to non-technical users while preserving privacy. The project fills a gap by combining FFmpeg's breadth with a zero-infrastructure, offline-first UX.

Target audience: general users, content creators, backend devs

Repository: https://github.com/tejaswigowda/ffmpeg-webCLI · JavaScript · GPL-3.0

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