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Convert video frame rate: 24fps (cinematic), 30fps (standard), 60fps (smooth gaming), 120fps (slow motion). Use-case presets for film, YouTube, gaming, and smooth motion interpolation.
Crop videos to any aspect ratio. Platform presets for Instagram (1:1, 9:16), YouTube (16:9), TikTok. Interactive crop area with rule of thirds grid. Real-time preview while cropping.
Trim and cut videos precisely with frame-by-frame scrubbing. Set start/end points visually, preview clips in real-time, and export trimmed videos instantly. No upload required - runs 100% in browser.
Convert videos between MP4, WebM, MOV, AVI, MKV, and other formats directly in your browser. The Video Format Converter includes platform-specific presets for YouTube, Instagram, TikTok, and Twitter, so you can pick a target and let the tool handle codec and bitrate settings automatically. Quality options range from fast draft conversions to high-fidelity output, and you can choose audio codecs independently. Because everything runs via WebAssembly on your device, no files are uploaded to any server.
Format conversion (transcoding) involves decoding the original video stream and re-encoding it into a different codec and container. The tool separates the container choice (MP4, MKV, WebM) from the video codec (H.264, VP9) and audio codec (AAC, Opus), giving you full control. Platform presets combine these settings into tested configurations so your output is accepted and plays correctly on each service without trial and error.
The converter manages the tradeoff between file size, quality, and encoding speed through adjustable quality presets. Lower quality settings encode faster and produce smaller files, while higher settings spend more processing time to preserve detail. For most social media use, the default preset strikes a good balance.
Convert videos that won't play on certain phones, TVs, or media players into universally supported MP4/H.264.
Use built-in presets to match exact format, resolution, and bitrate requirements for Instagram, TikTok, or YouTube.
Transcode bulky camera files (e.g., MOV from iPhones) into more compact formats for email or cloud storage.
Convert older AVI or WMV files into modern formats that work in current browsers and players.
Produce WebM files with VP9 for fast-loading, high-quality video on websites.
Any lossy-to-lossy conversion introduces some generation loss. Using higher quality settings minimizes this. For maximum quality, choose the highest quality preset and expect a larger output file.
MP4 with H.264 is the safest choice for broad compatibility. WebM with VP9 is ideal for web use. If you're targeting a specific platform, use the built-in preset instead.
Video transcoding is computationally intensive. Speed depends on your device's CPU, the input video's resolution, and the selected quality level. Lower quality settings encode faster.
This tool is designed for video. For audio-only conversions, use the dedicated audio format converter.
All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.