Video
Converter

Convert video files between MOV, MP4, WebM, AVI, and GIF formats.

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Select a video file to preview and convert.

Output Format

Result

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Why is MOV to MP4 instant but re-encoding to GIF takes minutes?

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Frequently Asked Questions

Browser-based video converters using FFmpeg WASM can handle common formats including MP4, WebM, AVI, MOV, MKV, and FLV. Output options typically include MP4 (H.264), WebM (VP9), and GIF.

H.265 (HEVC) achieves roughly twice the compression efficiency of H.264 at the same quality level, resulting in smaller file sizes. However H.264 has broader device and browser compatibility and faster encoding times.

Video conversion requires decoding every frame of the source video, re-encoding it with the new codec, and assembling the output container. Processing time scales with video length, resolution, and encoder quality settings.

VideoConverter