Online Video Trimmer

Online Video Trimmer is a browser-based video cutting tool that requires no software installation. It features a visual timeline for selecting trim ranges and supports manual time input for frame-level precision, making it ideal for quickly extracting video clips.

Key Features

• Visual timeline editing: Drag handles to select start and end points with real-time clip preview
• Dual trim modes: "Keep original codec" for fast, lossless trimming; "Frame-accurate" for precise frame-level cuts
• Wide format support: Handles MP4, MOV, MKV, AVI, WebM, FLV, WMV, TS, RMVB, VOB, 3GP, MPEG and more
• Multiple output formats: Export as the same format or convert to MP4, MOV, MKV, WebM, AVI and 13 other formats
• Built-in video player: Preview and play video clips directly in the page
• Non-playable format support: For formats browsers cannot play (some MKV, RMVB), generate a low-res preview or type times directly

Use Cases

• Extract highlight clips from long videos for sharing
• Remove unwanted intros or outros from recordings
• Cut key segments from meeting recordings or livestream replays
• Trim videos to meet social media duration limits
• Convert and trim video formats in one step

How to Use

1. Click or drag a video file to the upload area
2. Use the timeline handles to select the trim range, or type start/end times manually
3. Click "Preview clip" to verify the selected range
4. Choose trim mode (keep original codec or frame-accurate) and output format
5. Click "Start Trimming" and download the result when processing completes

FAQ

Q: Will trimming reduce video quality?

A: In "Keep original codec" mode, the video stream is copied without re-encoding, preserving the original quality. "Frame-accurate" mode re-encodes the video, which may cause negligible quality loss but allows cutting at any frame.

Q: What is the difference between the two trim modes?

A: Keep original codec is fast but snaps the start point to the nearest keyframe, which may begin slightly earlier than specified. Frame-accurate re-encodes the video for exact frame positioning, but takes longer to process.

Q: Which video formats are supported?

A: Over 40 input formats are supported including MP4, MOV, MKV, AVI, WebM, FLV, WMV, TS, RMVB, VOB, 3GP, MPEG and more.

Q: Are files uploaded to a server?

A: No. All processing happens locally in your browser. Files are never uploaded to any server, ensuring complete privacy.

Q: Can I use this tool on mobile?

A: Yes, the tool works in mobile browsers. However, processing larger video files may take longer due to limited mobile device performance.