3G2 to MP3 Converter
Convert 3G2 to MP3 online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
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Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is a 3G2 file?
The 3G2 file format is a multimedia container defined by the 3rd Generation Partnership Project 2 (3GPP2) for use on CDMA2000-based mobile networks. It is structurally similar to the MP4 format but is optimized to minimize storage and bandwidth usage on legacy mobile devices. The format stores video streams typically encoded with MPEG-4 Part 2 or H.263, and audio streams using EVRC, EVRC-B, QCELP, or SMV codecs. 3G2 files are compliant with the ISO base media file format (ISO/IEC 14496-12) but possess extensions specific to the 3GPP2 specifications.
How to open a 3G2 file
While 3G2 was native to early CDMA mobile phones, modern desktop operating systems often lack native support for its specific audio codecs like EVRC. Apple QuickTime Player and Microsoft Windows Media Player may open these files if the appropriate DirectShow filters are installed. For universal compatibility across Windows, macOS, and Linux, the VLC media player is recommended as it utilizes the FFmpeg library to decode 3GPP2 streams without external codec packs.
3G2 Technical Info
- Full Name
- 3rd Generation Partnership Project 2 File Format
- Developed By
- 3GPP2
- Initial Release
- 2003
- MIME Type
- video/3gpp2
What is an MP3 file?
MPEG-1 Audio Layer III (MP3) is a lossy audio compression format defined by ISO/IEC 11172-3, developed by the Fraunhofer Institute. It uses perceptual coding based on psychoacoustic models to discard auditory data deemed imperceptible to the human ear, specifically utilizing the Modified Discrete Cosine Transform (MDCT) and Fast Fourier Transform (FFT). The format structures data into frames consisting of a header and data block, becoming the de facto standard for digital audio transfer in the 1990s.
How to open an MP3 file
MP3 playback is universally supported across all major operating systems (Windows, macOS, Linux, Android, iOS) without requiring additional codec installation. Native applications such as Windows Media Player, QuickTime, and Groove Music handle the format by default. Advanced users seeking spectral analysis or tag editing may utilize Audacity or Mp3tag.
MP3 Technical Info
- Full Name
- MPEG-1 Audio Layer III
- Developed By
- Fraunhofer Society
- Initial Release
- 1993
- MIME Type
- audio/mpeg
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Every 3G2 to MP3 conversion runs on our servers, so your device stays fast and the output quality stays intact.
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Developer API
Convert 3G2 to MP3 via API
Automate 3G2 to MP3 conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "3g2-to-mp3",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "mp3"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.3g2
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.