Is it safe to convert MP3 to AAC here?

Yes — your .mp3 file is converted entirely on your device. It is never uploaded anywhere.

Will the converted .aac file lose quality?

We use ffmpeg's standard settings for this pair, matching quality you'd get from a desktop tool.

Is there a file size limit?

Files up to 500MB are supported. No account required.

Convert MP3 to AAC

Re-encode MP3 audio as AAC for better quality-per-bit on Apple devices.

Drop a .mp3 file or click to browse

Max file size 500MB • No Account Required • Files Never Touch a Server

File signature verified before conversion — never uploaded

About converting MP3 to AAC

MP3 (.mp3) files can be converted to AAC entirely in your browser — no software to install, no file upload, and no account required. The conversion runs on a WebAssembly build of ffmpeg directly on your device.

FAQ

Is it safe to convert MP3 to AAC here?: Yes — your .mp3 file is converted entirely on your device. It is never uploaded anywhere.
Will the converted .aac file lose quality?: We use ffmpeg's standard settings for this pair, matching quality you'd get from a desktop tool.
Is there a file size limit?: Files up to 500MB are supported. No account required.

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