MP3 to AAC Converter
Convert MP3 audio to the modern AAC format — right in your browser.
AAC is the successor to MP3, offering better quality at the same bitrate and used widely by Apple devices, YouTube, and streaming services.
This tool re-encodes your MP3 to AAC locally. Your file is never uploaded.
How to convert MP3 to AAC
- 1Drop your MP3 file into the area above — or click to browse.
- 2The output format is already set to AAC. Adjust the quality settings if the format supports them.
- 3Click convert, then download your AAC file. Everything runs locally — nothing is uploaded.
Frequently asked questions
At the same bitrate, AAC usually sounds better and is more efficient. Converting an existing MP3 won't add quality, but the AAC file will be compatible with AAC-only workflows.
128 kbps AAC is roughly equivalent to a higher-bitrate MP3. For music, 192–256 kbps keeps it crisp.
No. All processing happens entirely in your browser. Your data never leaves your device — nothing is uploaded to any server.
Yes. Once the page has loaded, the tool works completely offline. For the best experience, install PrivaDeck as a PWA from your browser.
Other conversions
Need a different format?
Open the full audio converter to pick from MP3, WAV, OGG, AAC, FLAC, M4A and Opus, convert in batches, and adjust bitrate, sample rate and channels.
Open the full Audio Converter