3G2 Converter
FileFlip converts 3G2 files into 31 other formats entirely inside your browser, using FFmpeg and WebCodecs compiled to WebAssembly. The 3G2 file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. There is no file-size limit and no account to create.
How do I convert a 3G2 file?#
- Drop your 3G2 file onto the converter at the top of this page, or click it to pick one from your computer.
- Choose the format you want out of it. FileFlip downloads the engine that conversion needs, once, and your browser caches it.
- Conversion starts the moment you pick the format, and the result is yours to download. The work happens in this tab, so nothing is uploaded and nothing is queued.
Is it safe to convert 3G2 files online?#
Yes, because nothing is uploaded. FileFlip converts 3G2 files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What happens to a 3G2 file#
FileFlip converts 3G2 into 31 formats with FFmpeg and WebCodecs, all of it inside the browser tab. Each conversion below names the engine it uses, what it downloads, and exactly what that conversion keeps or drops.
| Category | Video Files |
|---|---|
| File extension | .3g2 |
| FileFlip support | Read only, so it is a source rather than a target |
| Conversions available | 31 |
| Engines | FFmpeg and WebCodecs |
| Downloaded to your browser | 30.8 MB on the first conversion, then cached |
What is a 3G2 file?#
A 3G2 file holds video and audio in the multimedia container 3GPP2 defined for CDMA-lineage mobile phones, the same MPEG-4 Part 12 lineage as 3GP but tuned to the codecs and networks used across North America and parts of Asia.
There's little reason to create new 3G2 files today; it matters only for handling video already recorded on an older CDMA phone.
Convert 3G2 to MP4 to play old CDMA phone footage on current devices, since almost nothing besides that original phone's own software still targets 3G2 directly.
The 3G2 file format reference covers the specification, the programs that open one, and what each conversion keeps or drops.
3G2 questions people ask#
What produces a 3G2 file?
3G2 files come from older CDMA-network mobile phones, the kind carriers like Verizon and Sprint sold before those networks were shut down. Video recorded or received as an MMS message on those phones typically saved in this format.
Why won't my 3G2 file play?
3G2 is rare enough that many players never added support for it, and its CDMA-specific audio codecs like EVRC or QCELP aren't included in general-purpose decoders. VLC is the most reliable option for opening a 3G2 file directly.
What's the difference between 3G2 and 3GP?
Both are the same MPEG-4 Part 12 family of mobile video container, but 3GP was defined by 3GPP for GSM-network phones while 3G2 was defined by 3GPP2 for CDMA-network phones. The practical difference is mainly which audio codecs each permits, matched to the voice codecs their respective networks already used.
What should I convert a 3G2 file to?
Convert 3G2 to MP4 to get old CDMA phone footage playing on a current device. MP4 supports far more codecs and doesn't depend on decoders that were only ever built for CDMA-era handsets.