FLV to 3G2 — Format Comparison & Online Converter
Fast, instant FLV to 3G2 conversion. No signup required. Just drop your .flv file and get .3g2 in seconds.
Batch Settings
还在为FLV格式的视频文件发愁吗？尤其是在微信里分享，或者想在老一点的手机上播放，FLV可能就没那么方便了。别担心，我们提供的FLV转3G2工具，能帮你轻松解决这个问题。3G2格式以其小巧的体积和广泛的兼容性，在移动设备上有着不错的表现。无论是想把以前下载的Flash动画转到手机上看，还是为了节省存储空间，3G2都是一个非常实用的选择。我们的转换过程快速又稳定，操作界面也力求简洁明了，让你无需复杂设置，几步就能完成转换，让你的视频在更多设备上流畅播放。
- 微信分享老视频
- 旧款手机播放
- 游戏录像打包
在大陆及东南亚地区，3G2因其对早期移动设备和网络环境的良好适应性，在特定场景下仍有其应用价值，尤其是在流量成本较高或设备性能有限时。
About FLV to 3G2 Conversion
FLV (introduced 2002) and 3G2 are both video formats, but they differ in important ways. FLV (Flash Video) is a legacy streaming format — converting to MP4 is recommended for modern use. 3G2 is a widely used file format.
When you convert FLV to 3G2, the goal is to convert between formats quickly. Converting FLV to 3G2 maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your FLV file is decoded and re-encoded as 3G2. The conversion involves 4 steps: (1) your flv file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in 3g2 format, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you need a 3G2 file. For the opposite direction, CocoConvert also supports 3G2 to FLV conversion.
How to Convert FLV to 3G2
- 1
Upload .flv file
Select your FLV file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .3g2
Set 3G2 as the output format. The converter uses optimal settings based on the FLV→3G2 conversion profile.
- 3
Convert
The server-side engine decodes your FLV file and re-encodes it as 3G2. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .3g2 file. Multiple output files can be downloaded together.
What Happens When You Convert FLV to 3G2
Your FLV file is decoded and re-encoded as 3G2.
Your FLV file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in 3G2 format
The converted file is ready for download
Format Comparison
FLV
.flv file
| Extension | .flv |
| MIME Type | video/x-flv |
| Category | Video |
3G2
.3g2 file
| Extension | .3g2 |
| MIME Type | video/3gpp2 |
| Category | Video |
Should You Convert FLV to 3G2?
When to Convert
- ✓When you need a 3G2 file
Frequently Asked Questions
What is the difference between FLV and 3G2?
FLV (Flash Video) is a legacy streaming format — converting to MP4 is recommended for modern use. 3G2 is a widely used file format.
Does FLV to 3G2 conversion affect quality?
Converting FLV to 3G2 maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, FLV or 3G2?
FLV uses lossy compression. 3G2 is widely supported. The better choice depends on whether you prioritize file size or quality.
How long does FLV to 3G2 conversion take?
Most conversions finish in seconds. Larger files or complex video content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is FLV or 3G2 better for long-term storage?
Both formats use lossy compression, so consider keeping your original source file for long-term storage.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.