Converters change a video from one format to another so it plays where you need it: on a phone, on a website, in an editor. When the codecs already match, conversion is only a rewrap and finishes in a moment with zero quality loss.
Pick the pair you have, like MOV to MP4 or MKV to MP4. For iPhone and HEVC videos there are dedicated converters that produce widely compatible H.264.
Choosing the right tool
- MOV, MKV, M4V, FLV and 3GP to MP4 are usually instant rewraps when the video is H.264.
- HEVC (H.265) videos need a re-encode to H.264 to play on older devices.
- AVI, WMV and MPEG files are only partly supported because browsers cannot decode their codecs.
Questions
Will converting reduce quality?
Not when the tool can copy the streams into the new container. A re-encode costs a tiny amount of quality in theory; the High setting keeps it visually the same.
Which format should I convert to?
MP4 with H.264 for maximum compatibility, WebM for websites, MOV for Apple editing workflows.
Other kinds of video tool
- Compress videoMake video files smaller for email, chat apps and uploads.
- Resize videoChange resolution and shape for TikTok, Instagram, YouTube and more.
- Edit videoTrim, crop, merge, split, rotate, change speed and more.
- Text, watermark and effectsAdd text, logos and subtitles, blur areas, change colours and filters.
- Create videoPhoto slideshows, audio to video, GIF to MP4 and recorders.
- Audio and soundExtract, remove, replace or change the sound of a video.
- GIFs and imagesTurn video into GIFs, frames and screenshots.
- Video info and checkersSee resolution, duration, codec, frame rate and more.
Or browse all video tools..