3GPP to M4A Converter
Convert 3GPP to M4A 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
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What is a 3GPP file?
The 3GPP file extension is functionally identical to 3GP, serving as a simplified version of the MPEG-4 Part 14 (MP4) container format. Designed by the 3rd Generation Partnership Project for GSM networks, it handles data storage for audio, video, and text (subtitles). The format adheres to ETSI 3GPP technical specifications TS 26.244, supporting variable bit rate (VBR) audio via the Adaptive Multi-Rate (AMR) codec. While less common than the three-character .3gp extension, .3gpp is fully compliant with the ISO/IEC 14496-12 standard.
How to open a 3GPP file
Opening a 3GPP file requires software capable of parsing the ISO base media file structure and decoding H.263/H.264 video alongside AMR audio. Native support exists in standard Android video players. For Windows and macOS users, if the default media players (Movies & TV, QuickTime) encounter playback errors, the VLC media player is the industry-standard solution for rendering these mobile-specific archives.
3GPP Technical Info
- Full Name
- 3rd Generation Partnership Project File Format
- Developed By
- 3GPP
- Initial Release
- 2004
- MIME Type
- video/3gpp
What is an M4A file?
The M4A file extension denotes an audio-only MPEG-4 container, defined by ISO/IEC 14496-14 standards and typically encoded using Advanced Audio Coding (AAC) or Apple Lossless (ALAC). Originally popularized by Apple to differentiate audio content from standard .MP4 video files, the container utilizes an atom-based structure (e.g., ftyp, moov, mdat) to store audio streams and metadata. It serves as the successor to MP3, offering superior compression efficiency and fidelity at equivalent bitrates.
How to open an M4A file
M4A files are natively supported by the Apple ecosystem (iTunes, QuickTime, iOS Music) and Windows Media Player on modern Windows versions. Cross-platform compatibility is robust, with VLC Media Player, Audacity, and Winamp providing decoding capabilities. On Android devices, native players often handle M4A, though third-party apps like Poweramp ensure compatibility with ALAC-encoded variants.
M4A Technical Info
- Full Name
- MPEG-4 Audio
- Developed By
- Apple Inc. / MPEG
- Initial Release
- 2001
- MIME Type
- audio/mp4
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Convert 3GPP to M4A in seconds
Every 3GPP to M4A conversion runs on our servers, so your device stays fast and the output quality stays intact.
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Developer API
Convert 3GPP to M4A via API
Automate 3GPP to M4A 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": "3gpp-to-m4a",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "m4a"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.3gpp
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$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.