Turn your M4As into AACs in seconds
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or click to browse your files · Max file size: 1 GB
Max file size: 1 GB
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M4A is an audio-only MP4 container, typically holding an AAC stream, and is the default format used by iTunes and Apple Music downloads.
AAC (Advanced Audio Coding) is the successor to MP3, offering better sound quality at the same bitrate, and is used by Apple, YouTube, and most streaming platforms.
Frequently asked questions
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Is it free?
Yes — converting files on TransConvert is free, with no sign-up required.
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Does converting reduce quality?
It depends on the formats involved — some conversions keep everything exactly, others may show a small trade-off if the target format itself is lossy. We never add any extra compression beyond what the format requires.
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Is my file kept afterwards?
No — files are processed to produce your download and are not kept afterwards.
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What's the largest file I can convert?
Files up to 1 GB are supported.