WebM to MP4

WebM 動画を widely compatible な MP4 に convert

🔒 100% browser で動作🆓 永久無料✨ Watermark なし

Drop files here or click to select

Drop a video/webm video

🔒 Files never leave your device

⚡ Uses FFmpeg WebAssembly. First run downloads ~30 MB (cached after). Encoding takes roughly 1–5× the video's duration.

使い方

1
Upload your video
Drop or select a video file.
2
Configure options
Choose the settings that fit your use case.
3
Download
Save the processed video to your device.

WebM to MP4 について

Browser で WebM を MP4 に変換。iOS、Android、すべての editor と互換性があります。

仕事、勉強、個人利用 — この tool は必要なだけ無料で使えます。Watermark なし、sign-up なし、documents 内の広告もなし。

よくある質問

Are my videos uploaded?

Never. Processing runs entirely in your browser using FFmpeg WebAssembly.

Why is it slow?

Video encoding is CPU-heavy. Expect roughly 1–5× the video's duration for encoding. First-time load also downloads ~30 MB of FFmpeg (cached after).

What's the file size limit?

Depends on your device's memory. Files up to ~1 GB usually work; multi-GB files may crash the tab.

続きを読む

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