Free audio to AAC converter

Convert audio files directly in your browser, completely for free, with no uploads or server processing. All conversions stay on your device.

Local processingPowered by FFmpegNo uploads required

Choose your audio files

Click here or drag and drop audio files here.

Convert from M4A to

FFmpeg runs entirely in your browser to re-encode your audio files. Larger files may take longer depending on your device.

For best results, keep your browser open while the conversion is running.

Supported formats

MP3WAVFLACM4AAACOGG