MP4 with H.264 video and AAC audio is the closest thing video has to a universal format — it plays on every Mac, iPhone, iPad, browser, and TV. hdvideoconverter-mac.com converts your MOV, AVI, MKV, WMV, FLV and other clips into clean MP4, re-encoding with a quality-balanced setting so the result looks great without ballooning in size.
Why MP4 (H.264)?
H.264 inside an MP4 container is supported by hardware decoders in virtually every device made in the last fifteen years, which means smooth playback and good battery life. Formats like MKV, AVI and WMV often refuse to play on a Mac or iPhone, or need extra software. Converting to MP4 once removes all that friction.
Quality, size and other formats
The converter uses a CRF-based encode that keeps quality high while controlling file size — a good default for sharing and archiving. If you need a web-optimised open format, try WebM; for a QuickTime-native file, MOV; and to pull just the soundtrack, video-to-MP3. Larger videos take longer to process because they're fully re-encoded.