MP4 AAC
Convert MPEG-4 Video to Advanced Audio Coding online — free, fast, and high-quality.
Drop your files here or click to browse
Converts to AAC · up to 2 files per batch
Instant AAC downloads
No watermarks, ever
Files auto-deleted after conversion
How to convert MP4 to AAC
- 1Drag and drop your MP4 file into the box above.
- 2We upload it securely and convert it to AAC on our servers.
- 3Download your AAC file — no signup required.
Frequently asked questions
How do I convert MP4 to AAC?
Upload your MP4 file, click Convert, and download the AAC result. Conversion runs on our servers, so nothing is installed on your device.
Is the MP4 to AAC converter free?
Yes. You can convert MP4 files to AAC for free, with generous daily limits and no watermarks.
Is it safe to convert MP4 files here?
Uploads are transferred over HTTPS, processed in isolated workers, and automatically deleted after a short retention window.
What is the maximum MP4 file size?
Free conversions support files up to 250 MB. Premium plans raise this to 5 GB.