ファイル・メディア
GIFから動画への変換
Convert animated GIFs to MP4 or WebM.
Drop a file or click to browse
Big animated GIFs become 10× smaller as video
FFmpeg.wasm runs entirely in your browser. The first use downloads ~30 MB of engine — cached for every subsequent run.
編集者注
Understanding · The 10× file-size win that nobody bothers with.
この詳細な解説章は現在、英語版のみで提供されています。上の変換ツールはあなたの言語で動作しますが、長文の解説記事はまだ翻訳されていません。
よくある質問
Quick answers.
›Why should I convert a GIF to a video?
Video formats like MP4 and WebM use advanced compression that can reduce file sizes by up to 90% compared to a GIF. This results in faster page loads and smoother playback for users.
›Are my files uploaded to your server?
No. The conversion is performed entirely within your browser using your device's hardware. Your original GIF and the resulting video never leave your computer.
›Which video format should I choose?
MP4 is widely compatible with almost all devices and browsers. Choose WebM if you need a smaller file size for modern web browsers like Chrome, Firefox, or Edge.
›Does the conversion maintain transparency?
Standard MP4 does not support transparency. If your GIF has a transparent background, you should convert it to WebM to preserve the alpha channel, provided the browser supports it.
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