- Upload: Drag and drop or click to upload a video (MP4, WebM, MOV).
- Set Range: Enter start and end times in seconds. The duration is calculated automatically.
- Trim: Click 'Trim Video' — the video is cut using FFmpeg.wasm without re-encoding (stream copy) for fast, lossless operation.
- Download: Click Download to save the trimmed video.
Video Trimmer — Cut Videos in Your Browser
Our Video Trimmer lets you cut and trim video files entirely in your browser using FFmpeg.wasm. No uploads, no server-side processing — just fast, lossless trimming using stream copy.
How It Works
The video trimmer loads FFmpeg.wasm — a WebAssembly port of the powerful FFmpeg multimedia framework. When you set start and end times, it extracts that segment using stream copy (-c copy), which means:
- Lossless: No quality loss — the original video and audio streams are preserved
- Fast: No re-encoding means trimming is nearly instant
- Small output: Only the selected segment is saved
Features
- Precision timing: Set start and end times in seconds with 0.1s precision
- Video preview: Built-in video player to navigate to the exact frames you want
- Progress tracking: Real-time progress bar during trimming
- Stream copy: Fast, lossless trimming without re-encoding
- Instant download: Download the trimmed clip immediately
Common Use Cases
- Remove intros/outros: Cut the beginning or end of a video
- Extract clips: Pull specific scenes from a longer video
- Social media: Trim videos to platform time limits (15s, 30s, 60s)
- File size reduction: Remove unwanted parts to reduce file size
Privacy
FFmpeg.wasm runs entirely in your browser's WebAssembly sandbox. Your video files never leave your device.