Trim Video
Extract the best parts of your video or crop it to 9:16 vertical format for social media. Everything runs directly in your browser without uploading files to remote servers.
How it works & privacy
1. Your files stay on your device
Videos are never uploaded or stored on any server. All processing is executed locally in your browser using WebAssembly (ffmpeg.wasm).
2. First run caches the converter module
On first use, the browser downloads the converter engine (~30 MB from cdn.jsdelivr.net), which is cached for future visits.
3. Fast vs. Precise mode
Fast mode copies the video stream without recompression, completing almost instantly. Precise mode re-encodes frames for exact millisecond cuts and enables 9:16 cropping.
4. 9:16 crop for social platforms
Easily convert landscape footage into vertical videos ready for Instagram Reels, YouTube Shorts, or TikTok.
This tool is intended for processing your own media files. Please respect copyright laws.
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