Convert MP3 to AAC
Free online MP3 to AAC converter.
Choose a .mp3 file
or drag and drop it here
Max 200 MB for video · 100 MB for other files
How to convert MP3 to AAC
- Click "Choose a .mp3 file" or drag and drop your MP3 file into the upload area.
- Select your preferred quality level — high quality keeps the best fidelity, smaller file prioritizes file size.
- Your file uploads directly to our secure servers and conversion starts automatically.
- Once finished, click "Download" to save your converted AAC file.
About MP3 and AAC formats
.mp3 format
MP3 is the most popular audio format worldwide. It uses lossy compression to dramatically reduce file size while maintaining acceptable audio quality. Universal compatibility.
.aac format
AAC (Advanced Audio Coding) is the successor to MP3 with better sound quality at similar bit rates. Used by Apple Music, YouTube, and most streaming platforms.
Privacy and security
Your files are encrypted during upload using 256-bit SSL and are automatically deleted from our servers within 24 hours. We never share, sell, or access your files. All conversions happen on isolated, ephemeral servers.