MP3 to AAC Converter — Free Online

Free online MP3 to AAC converter — quickly transform your audio files without registration or software installation. Our service lets you convert mp3 to aac in just a few clicks. Conversion happens right in your browser — files are never uploaded to a server and stay on your device. AAC provides better sound quality than MP3 at the same size. Used by iTunes, YouTube and streaming services. Try our mp3 to aac converter right now!

🔄 How MP3 to AAC Converter Works

MP3 to AAC conversion is fast and convenient. Drag multiple files to upload area, and our online converter processes them in seconds.

Full control over quality: bitrate, sample rate, channels. Customize mp3 to aac conversion settings to your needs.

Processing runs locally in browser. Your files stay private — we never access your audio. Works on Windows, Mac, Linux, Android and iOS.

🎯 Problems This Converter Solves

Issues playing MP3?

Convert to universal AAC format for better compatibility.

Uploading podcast or music?

AAC is optimal for streaming and publishing.

Creating iPhone ringtone?

AAC is supported by all Apple devices.

💡 Common Uses for AAC

📱 Upload to iPhone/iPad

🎵 Add to iTunes/Apple Music

📺 YouTube video audio

💾 High-quality compression

✨ Our Converter Advantages

⚡ Speed Optimized

Optimized algorithms for lightning-fast processing

📦 Group Convert

Up to 10 audio files in one session

🌐 Universal Access

Open in browser and start converting

🔒 Complete Security

Your files are protected and auto-deleted after processing

🎛️ Full Control

Adjust audio quality to your needs

💰 Free Service

Convert as much as you want — it costs nothing

📊 Format Comparison

MP3 Compact format

Most popular format. Supported by all devices.

AAC Compact format

Advanced Apple codec. Better than MP3 at equal bitrate.

❓ Frequently Asked Questions

How can I transform MP3 to AAC?

Open the converter page, add your MP3 file, select AAC, and click the convert button. Download when ready.

Is the MP3 to AAC converter free?

Absolutely free! Convert as many files as you want without registration or payment.

What quality can I expect after MP3 to AAC conversion?

Double compression affects quality. To minimize losses, use high bitrate and quality source file.

How many MP3 files can I process at once?

Up to 10 files per session. All processed in parallel in your browser.

What size files can I convert?

Up to 100 megabytes. Browser conversion doesn't upload files to server — fully private.

Is MP3 to AAC conversion secure?

Completely secure! Processing happens in browser, your MP3 files are never transmitted anywhere.

📝 How to Convert MP3 to AAC

1

Upload File

Drag & drop MP3 files or click "Choose Files"

2

Adjust Settings

Choose quality, bitrate and other options

3

Convert

Click "Convert" and wait for processing

4

Download Result

Download your AAC files