Turn your AACs into OPUSs in seconds
Drop your AAC here
or click to browse your files · Max file size: 1 GB
Max file size: 1 GB
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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.
Opus is a modern, highly efficient open audio codec designed for both speech and music, widely used in VoIP calls and streaming.
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.