WebM Video Editor & Converter

Open your WebM file in FastEdit, select MP4 as the output format, choose H.264 for maximum compatibility (or H.265 for smaller files), and export. The conversion runs entirely in your browser, no upload, no waiting for a server queue.

Safari on iOS has limited WebM support, particularly for VP8-encoded files. The simplest fix is converting to MP4 with H.264 encoding, which plays everywhere. FastEdit can do this conversion instantly in the browser on any device.

WebM with VP9 or AV1 typically achieves better compression than MP4 with H.264 at the same quality. However, MP4 (H.264) has universal device and browser support, while WebM playback can be inconsistent on Apple devices. Choose WebM for web-only delivery where you control the player, MP4 for maximum compatibility.

Yes. Open the WebM in FastEdit, trim to the segment you want, set your dimensions and frame rate, then export as GIF. For better quality and smaller files, consider exporting as animated WebP instead. It supports millions of colors versus GIF's 256.