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Convert Video Format
Convert a video between MP4, MKV, AVI, MOV, and WebM
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Video
About this tool
Convert a video file to a different container format — MP4, MKV, AVI, MOV, or WebM.
Frequently asked questions
Which format should I choose?
MP4 is the most widely compatible choice for sharing and playback across devices; WebM is common for web use; MKV and AVI/MOV are often used for archival or specific editing workflows.
Does converting reduce quality?
Converting between formats re-encodes the video, which is effectively lossless for most practical purposes at default quality settings, though repeated re-encoding over many rounds can gradually reduce quality.