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Record screen/window/tab with optional system audio, saved locally
Format convert, remux, mute, rotate, flip, reverse, speed change, watermark via FFmpeg
Compress video to target size with auto-calculated bitrate via FFmpeg
Generate high-quality GIF from video using 2-pass palette method via FFmpeg
Play video and capture any frame as HD PNG locally
View video duration, resolution, size, format info locally
Validate, pretty-print or minify JSON with error line:col reporting
Merge multiple PDF files in sequence, all processed locally in browser
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