Video Editor
Coming Soon多轨道视频编辑器
即将推出
浏览器内全功能视频编辑器，无需安装软件，拖拽即可完成专业级剪辑。
功能开发中
敬请期待
How to Use
- Click the area above to select a file, or drag and drop a file onto the page
- Adjust parameters in the settings area
- Click the process button and download the result when ready
Frequently Asked Questions
How It Works
The Video Editor uses FFmpeg WebAssembly combined with a custom HTML5 Canvas-based timeline for multi-track visual editing. The editor implements a virtual timeline that tracks clip positions, transitions, and effects across multiple video and audio tracks.
The timeline operates as a data model that stores clip references (source file, in-point, out-point), track assignments, and effect parameters. When rendering, the editor constructs an FFmpeg filtergraph that composites all tracks: each video track uses the overlay filter to stack on top of the base track, with trim and adelay filters to synchronize timing across tracks.
Audio tracks are mixed using the amix filter with configurable volume levels per track. The preview system uses Canvas 2D to render a low-resolution preview in real-time, while the final export uses full FFmpeg encoding for production quality. All operations run in Web Workers to maintain UI responsiveness.
Tips & Best Practices
- Organize tracks early: Assign video to track 0 (base), overlays to track 1+, and audio to dedicated audio tracks for easier management.
- Use the preview: Check the Canvas preview before exporting to catch timing issues and visual glitches early.
- Minimize tracks: Each additional overlay track increases processing time significantly. Keep the track count as low as possible.
- Trim before overlay: Trim clips to their essential length before adding to the timeline to reduce memory usage.
- Save often: Multi-track editing is complex — save your project state frequently to avoid losing work.
- Export in segments: For very complex projects, export individual sections first, then combine them in a final merge step.
Use Cases
Content creators assembling multi-source video projects with picture-in-picture overlays, text titles, and background music — all from the browser.
Marketing teams creating product demo videos by combining screen recordings with webcam footage and branded overlays. Educators building interactive course content by layering annotations, diagrams, and narration over lecture recordings. Social media managers producing polished promotional videos combining multiple clips with transitions and music. Event planners editing highlight reels from multiple camera angles. Small business owners creating professional-looking promotional content without expensive desktop software.