MPEG to M4A Converter
Convert MPEG 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
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 an MPEG file?
The MPEG (Moving Picture Experts Group) file extension refers to a digital video format standardized by the ISO/IEC (specifically ISO/IEC 11172 for MPEG-1 and ISO/IEC 13818 for MPEG-2). It utilizes lossy compression techniques, including Discrete Cosine Transform (DCT) and motion compensation, to store video and audio data. MPEG files typically employ the MPEG Program Stream container format, designed for reliable storage media like optical disks, distinct from the Transport Stream used in broadcast. It supports variable bit rates and separates video, audio, and metadata streams for synchronized playback.
How to open an MPEG file
MPEG files possess extensive native support across major operating systems. On Microsoft Windows, they open natively with Windows Media Player and the Movies & TV app. Apple macOS users can view them via QuickTime Player. For files encoded with less common codecs or variations, cross-platform open-source players like VLC Media Player or MPV are recommended as they include built-in decoding libraries for all MPEG standards.
MPEG Technical Info
- Full Name
- Moving Picture Experts Group File
- Developed By
- ISO / IEC
- Initial Release
- 1993
- MIME Type
- video/mpeg
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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The fastest way to convert any file
Purpose-built for speed, privacy, and breadth of format support.
Convert MPEG to M4A in seconds
Every MPEG to M4A conversion runs on our servers, so your device stays fast and the output quality stays intact.
Fast, cloud-powered
No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
Secure & private
Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
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Developer API
Convert MPEG to M4A via API
Automate MPEG 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": "mpeg-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 "$UPLOAD_URL" --upload-file input.mpeg
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$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.