Video Conversion
Convert WebM to RM Online — Free
Fast, free WebM to RM converter. No registration required.
またはインポート元
200万以上のファイル変換
数千人のユーザーに信頼されています
安全な転送
HTTPS暗号化アップロード
プライバシー優先
処理後にファイルを自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
変換方法
1
Upload your .webm file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .rm file when it's ready.
WebMとは？
WebM is an open, royalty-free media format designed for the web. It provides high-quality video with efficient compression, making it ideal for online streaming.
形式の詳細
- 正式名称
- WebM Video
- 拡張子
- .webm
主な特徴
- Web optimized
- Royalty-free
- VP9 codec support
- HTML5 compatible
RMとは？
RM is RealNetworks' proprietary multimedia container format. It was the dominant streaming video format on the early internet through RealPlayer but has been largely obsoleted by modern codecs and containers.
形式の詳細
- 正式名称
- RealMedia
- 拡張子
- .rm
主な特徴
- Streaming format
- Low bandwidth
- Legacy support
- RealPlayer native
WebMとRMの比較
| 特徴 | WebM | RM |
|---|---|---|
| 正式名称 | WebM Video | RealMedia |
| 拡張子 | .webm | .rm |
| 最適な用途 | Web optimized | Streaming format |
よくある質問
Our converter preserves resolution, frame rate, and audio tracks by default. The RM output uses optimized codec settings to maintain quality as close to the original WebM as possible.
Free users can convert videos up to 100MB. Pro users can convert files up to 2GB with server-side processing — no software installation needed.
Most videos convert in under 60 seconds. Longer or higher-resolution files may take 1-3 minutes. Processing runs on our servers, so your device stays fast.
Yes. Our video converter is browser-based — works on iPhone, Android, tablet, and desktop. No app download required.
Yes. Audio is preserved by default during video conversion. You can also adjust audio codec, bitrate, and volume in the advanced settings.