MP3 M4A
Convert MPEG Audio Layer III to MPEG-4 Audio online — free, fast, and high-quality.
Drop your files here or click to browse
Converts to M4A · up to 2 files per batch
Instant M4A downloads
No watermarks, ever
Files auto-deleted after conversion
How to convert MP3 to M4A
- 1Drag and drop your MP3 file into the box above.
- 2We upload it securely and convert it to M4A on our servers.
- 3Download your M4A file — no signup required.
Frequently asked questions
How do I convert MP3 to M4A?
Upload your MP3 file, click Convert, and download the M4A result. Conversion runs on our servers, so nothing is installed on your device.
Is the MP3 to M4A converter free?
Yes. You can convert MP3 files to M4A for free, with generous daily limits and no watermarks.
Is it safe to convert MP3 files here?
Uploads are transferred over HTTPS, processed in isolated workers, and automatically deleted after a short retention window.
What is the maximum MP3 file size?
Free conversions support files up to 250 MB. Premium plans raise this to 5 GB.