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Features 5 min readUpdated March 20, 2026

Video & Audio Tool Guide

Guide to trimming, compressing, and converting video and audio files.

Kamili Toolbox includes browser-based video and audio tools powered by WebAssembly (FFmpeg). ## Video Tools ### Video Trimmer Cut a video to a specific start and end time: 1. Upload your video 2. Drag the trim handles on the timeline 3. Preview the trimmed clip 4. Download ### Video Compressor Reduce video file size: - Choose quality preset (High/Medium/Low) - See estimated file size before processing - Output as MP4 (H.264) ### Video to GIF Create animated GIFs from video clips: - Set start time, duration, and frame rate - Choose GIF dimensions (width is auto-calculated) - Optimize palette for smaller file size ### Extract Frames Extract specific frames or all frames from a video as PNG images. ## Audio Tools ### Audio Trimmer Cut audio to specific in/out points with waveform visualization. ### Audio Converter Convert between: - MP3 (most compatible) - WAV (uncompressed) - OGG (open source) - FLAC (lossless) ### Voice Recorder Record audio from your microphone directly in the browser. Download as MP3 or WAV. ### Screen Recorder Record your screen (requires browser permission): - Record tab, window, or entire screen - Optional: include microphone audio - Download as WebM or MP4 ## Performance All video/audio tools use FFmpeg compiled to WebAssembly. Large files (1GB+) may take significant time. Processing happens in your browser — no upload required.
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Video & Audio Tool Guide — Kamili Toolbox