Video format conversion is the unsung hero of any media workflow. Your camera shoots .MOV, your editor exports .MKV, your distribution channel needs .MP4, and your social platform compresses everything to .WebP regardless. The Video Converter hub on Ai2Done handles every combination of these formats with a single underlying engine — ffmpeg compiled to WebAssembly — running entirely on your device.
The most-used flows are MOV to MP4 for iPhone clips that refuse to play on Windows, MKV to MP4 for re-encoding desktop screen recordings into a more portable container, WebM to MP4 for repurposing browser-captured streams, and AVI to MP4 for migrating legacy clips off an old NAS. Each is presented as a focused, single-purpose tool with sensible defaults; advanced users can switch quality presets and let the tool re-encode rather than stream-copy when codecs are incompatible.
Beyond container conversion, the hub also covers MP4 to MP3 and M4A to MP3 for extracting soundtracks (lectures, interviews, music videos for personal playlists), and Video to GIF / Video to WebP for sharing short loops on chat or web pages. The GIF tool gives you control over frame rate, dimensions and duration so you can trade file size against animation smoothness.
Performance depends on whether the conversion requires re-encoding. A simple container swap (MOV → MP4 with H.264 video and AAC audio in both) is nearly instant because ffmpeg copies streams without decoding. A real format change (MKV with H.265 → MP4 with H.264) requires re-encoding and runs at roughly one quarter of real-time on a typical laptop — a four-minute clip takes about a minute. The hub shows a progress bar so you always know what to expect.
Privacy follows the same pattern as the rest of Ai2Done: the source file never leaves your machine, no server sees the contents, and there is no daily quota or watermark. Pair the Converter hub with the Video Compressor hub when you also need to shrink the output, and with the Audio Tools hub when your final destination is purely audio.