Desktop + web app · Tauri 2 · Rust · SolidJS · FFmpeg
MediaSmith
An open-source, local-first CapCut / Canva for the desktop and the browser, built for editing short videos end to end: import a file, cut on a multi-track timeline, add text and karaoke captions, reframe for vertical, and export to TikTok, Reels, Shorts, YouTube or GIF. No accounts, no watermark, no cloud.
Features
Templates by platform: TikTok/Reels, Shorts, YouTube, Instagram 4:5, squareMulti-track timeline: split, duplicate, zoom, snappingUndo/redo and project save/openText presets and fade, pop or slide animationsKaraoke captions, SRT/VTT import and exportExport 9:16, 4:5, 16:9 and 1:1 MP4, plus GIFRuns on the desktop (Tauri 2) and in the browser (ffmpeg.wasm)
About the browser demo: The browser version downloads the ffmpeg video engine (about 31 MB) the first time you export; your browser keeps it after that. Files never leave your computer. In the browser, exports go up to 960p. Whisper auto-captions, speaker labels, AI rewrite, link import and hardware encoding are in the desktop app only.
