Video Conversion
Convert MP4 to 3G2 Online — Free
Fast, free MP4 to 3G2 converter. No registration required.
或从以下导入
200万+文件已转换
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安全传输
HTTPS 加密上传
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文件处理后自动删除
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即刻开始转换
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任何浏览器，任何设备
如何转换
1
Upload your .mp4 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 .3g2 file when it's ready.
什么是 MP4？
MP4 is the most widely used video container format. It stores video, audio, subtitles, and metadata. Compatible with virtually every device and platform, from smartphones to smart TVs.
格式详情
- 全称
- MPEG-4 Part 14
- 扩展名
- .mp4
主要特点
- Universal compatibility
- Streaming support
- Small file sizes
- Hardware-accelerated playback
什么是 3G2？
3G2 is a multimedia container format similar to 3GP but designed for CDMA-based 3G networks. It's optimized for mobile devices with limited bandwidth.
格式详情
- 全称
- 3GPP2 Multimedia
- 扩展名
- .3g2
主要特点
- Mobile optimized
- CDMA compatible
- Small file size
- Low bandwidth
MP4 与 3G2 对比
| 特性 | MP4 | 3G2 |
|---|---|---|
| 全称 | MPEG-4 Part 14 | 3GPP2 Multimedia |
| 扩展名 | .mp4 | .3g2 |
| 最适合 | Universal compatibility | Mobile optimized |
常见问题
Our converter preserves resolution, frame rate, and audio tracks by default. The 3G2 output uses optimized codec settings to maintain quality as close to the original MP4 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.