Convert video online — MP4, WebM, GIF, MP3
Different platforms want different containers. MP4 with H.264 plays everywhere. WebM is smaller for the web. GIF loops without a player. MP3 is the audio track on its own. Pick a format and Cutmoor encodes it locally.
From file to download, with no upload bar
- 01Add a video
Any common container is accepted: MP4, MOV, WebM, MKV, or AVI.
- 02Choose a format
MP4 for compatibility, WebM for size, GIF for a short loop, or an audio format.
- 03Convert
The encoder runs in the page and produces a download when it finishes.
Convert video: common questions
Which format should I use?
Use MP4 with H.264 for almost everything: phones, browsers, Instagram, YouTube, and email. Use WebM when you control the player and want a smaller file. Use GIF only for very short, silent loops.
Why is my GIF so large?
GIF has no inter-frame compression worth using, so it is a poor format for long or high-resolution video. Keep GIFs under 6 seconds and 640 px wide, or use an MP4 loop instead.
Is MOV the same as MP4?
They are related containers, but not identical. iPhones often record MOV with HEVC, which some Android apps and browsers cannot open. Converting to MP4 with H.264 is the most compatible choice.
Can I convert without losing quality?
A re-encode always loses a little. To keep the original quality, use a stream copy when the codecs already match, or export at a high bitrate. Cutmoor re-encodes because it needs to guarantee compatibility.