🎬 Video Format Converter
Convert video files between formats. Browser-based conversion using FFmpeg.wasm.
Note: Full video conversion requires FFmpeg.wasm which is a large download (~30MB). For quick conversions, consider using a desktop tool like HandBrake.
📦 Container Formats
MP4, MKV, AVI, MOV are containers that hold video, audio, and subtitle streams. The container determines compatibility, not quality.
🎯 Codec vs Format
Codecs (H.264, H.265, VP9, AV1) compress video data. Formats (MP4, MKV) are containers. Same codec can be in different containers.
🌐 Unit Reference
Explanation of both units.
🌐 Web Streaming
MP4 and WebM are the primary web formats. HLS (.m3u8) and DASH use MP4 segments for adaptive streaming.
Frequently Asked Questions
What is the best video format for web?
MP4 with H.264 codec is the most universally supported format for web playback across all browsers and devices. WebM with VP9 codec offers better compression and is supported by most modern browsers, making it ideal for reducing bandwidth.
What is the difference between MP4 and MKV?
MP4 is a universal container format with excellent device and browser compatibility. MKV (Matroska) is more flexible, supporting virtually any codec and multiple audio/subtitle tracks, but has limited support on some devices and browsers.
How do I reduce video file size without losing quality?
Use the H.265/HEVC codec for up to 50% smaller files at the same visual quality. You can also lower resolution to 720p for mobile, reduce bitrate, or use two-pass encoding for optimal quality-to-size ratio.
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