Set start and end time to trim MP4, WebM and MOV videos losslessly in your browser. 100% local processing, no data uploaded.
Start TrimmingDrag & drop a video file here, or click to browse
Supports MP4, WebM, MOV · Max 500MB
Video trimming removes unwanted sections from the beginning and end of a video while keeping the middle segment intact. Our tool processes everything inside your browser using HTML5 Canvas and MediaRecorder APIs, ensuring your original video quality is preserved and your files never leave your device.
1. Drag and drop or click to select your video file. 2. Use the timeline handles or type exact start/end times. 3. Click "Trim Video" to process. 4. Download your sliced video when ready. The entire process runs client-side for maximum privacy.
Our tool uses frame-level Canvas rendering with MediaRecorder to export video at high quality. While browser-based encoding uses lossy codecs (VP9/Opus), the temporal slicing is frame-accurate, meaning no frames are dropped or duplicated at cut points. For true lossless byte-level cutting, server-side tools like FFmpeg are required.
No. This is a 100% client-side tool. Your video file is read using the browser's FileReader API and processed locally with Canvas and MediaRecorder. Nothing is ever uploaded, transmitted, or stored on any server.
Chrome, Edge, Firefox, and Safari (14+) are supported. Chrome and Edge offer the best MediaRecorder compatibility and encoding speed. Safari users may see slightly larger output files due to codec differences.
Browsers natively support MediaRecorder for WebM containers with VP8/VP9 video and Opus audio. MP4 recording via MediaRecorder is still experimental in most browsers. WebM provides excellent quality and is compatible with most modern video players and editing software.