Video Trimmer

About Video Trimmer

This online video trimmer allows you to cut and trim video files directly in your browser. Simply select a video, choose the start and end time using the timeline or manual input, and trim your video. All processing happens locally for complete privacy.

What video formats are supported?

Input: MP4, WebM, MOV, and other common formats. Output: You can choose to keep the same format as input or convert to MP4, WebM, or MOV.

How do I trim a video?

Upload your video, play it to find the section you want to keep, then use the 'Set as Start' and 'Set as End' buttons to mark your trim points. You can also manually enter the start and end times. Click 'Trim Video' to process.

What is the file size limit?

The maximum file size is 100MB. This ensures smooth processing in your browser. For larger videos, consider using desktop video editing software.

Will trimming affect video quality?

Using 'Copy' quality mode trims the video without re-encoding, preserving 100% original quality (fastest). Other quality modes will re-encode the video with your chosen settings. This tool uses FFmpeg.wasm for professional-grade video processing.

Can I preview before downloading?

Yes! The video player shows the exact section that will be trimmed. You can play the selected portion to verify it's correct before downloading.

Is my video file safe?

Absolutely! All video processing happens directly in your browser using FFmpeg.wasm (WebAssembly). Your video file is never uploaded to any server. Everything stays private on your device.

Why does FFmpeg take time to load initially?

FFmpeg.wasm is a powerful video processing library (about 30MB) that runs in your browser. It only needs to load once per session. After loading, all trimming operations will be fast and efficient.

Can I trim multiple sections?

Currently, this tool supports trimming one continuous section per operation. To create multiple clips, trim each section separately and download them individually.

How long does trimming take?

Trimming time depends on your video length and device performance. A typical 1-minute trim takes 10-30 seconds. Longer videos or slower devices may take more time.