Converts AAC files to M4A format — modern streaming services, YouTube, and devices where AAC is the native codec to Apple ecosystem. All conversion happens locally in your browser with no file size limits.
Convert M4A audio files to AAC format directly in your browser. High-quality conversion with no file size limits. Private and free.
Convert AAC audio files to FLAC format directly in your browser. High-quality conversion with no file size limits. Private and free.
Convert AAC audio files to OGG format directly in your browser. High-quality conversion with no file size limits. Private and free.
Converts MP4 files to MKV format — universal video playback on any device to advanced video archiving with multiple subtitle tracks, chapters, and audio streams in one file. All conversion happens locally in your browser with no file size limits.
Converts MKV files to MOV format — advanced video archiving with multiple subtitle tracks, chapters, and audio streams in one file to Apple ecosystem. All conversion happens locally in your browser with no file size limits.
AAC (Advanced Audio Coding) uses lossy compressed encoding and is best for modern streaming services, YouTube, and devices where AAC is the native codec. M4A (MPEG-4 Audio) uses lossy or lossless (AAC/ALAC) encoding and excels at Apple ecosystem — iTunes, iPhones, iPads, and macOS music libraries. Converting between them lets you take advantage of each format's strengths — for example, using a compressed format for sharing and a lossless format for editing. All conversion happens locally in your browser with no file size limits.
Supported formats include MP3, WAV, OGG, M4A, FLAC, and audio tracks extracted from video files.
Quality depends on the bitrate and format you choose. Higher bitrates preserve more detail at the cost of larger file sizes.
Absolutely. All audio processing happens locally in your browser using WebAssembly. No data is transmitted.
Yes. Several tools support extracting audio tracks from video files and saving them as standalone audio files.
Most audio operations complete in seconds. Longer files or complex compression may take a bit longer.
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