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Convert videos between MP4, WebM, AVI, and MOV — right in your browser. No upload, no watermark, completely private.
Convert videos between MP4, WebM, AVI, and MOV instantly — no upload to any server, no watermarks, no file size limits. Drop your video, pick the output format, and download. Unlike CloudConvert or Zamzar, your files never leave your device. Everything runs in your browser using FFmpeg WebAssembly. Perfect for converting MOV files from iPhone to MP4, preparing WebM for web embedding, or making videos compatible with any device.
Drop your video file (MOV, WebM, AVI, MKV, or any other format), select MP4 as the output, choose your quality, and click Convert. The converted MP4 downloads instantly. No account or signup required.
At "High" quality, the difference from the original is imperceptible. "Medium" provides a good balance of quality and file size. "Low" creates the smallest file with noticeable but acceptable quality reduction. Converting between formats always involves re-encoding, but modern H.264/VP9 codecs are excellent at preserving quality.
No. The conversion happens entirely in your browser using FFmpeg WebAssembly. Your video stays on your device — completely private. Safe for personal, work, or confidential content.
Input: virtually any video format — MP4, MOV, WebM, AVI, MKV, FLV, WMV, MPEG, 3GP, and more. Output: MP4 (H.264 — universal compatibility), WebM (VP9 — web optimized), AVI (legacy), and MOV (Apple). MP4 is recommended for most uses.
WebM uses the VP9 codec which offers excellent compression — often producing smaller files than MP4 at the same quality. It's supported by all modern browsers and is ideal for embedding videos on websites with HTML5 video tags. Google also prefers WebM for web content.