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AAC Converter

Convert AAC audio to MP3, WAV, M4A, FLAC and every other common format online.

or drag them here, or paste with Ctrl+V / ⌘V

Audio and video files · up to 10 files at once

Conversion options

PDF pages

Leave empty for all, or type e.g. 1-3, 5, 8-

Resolution
PDF document
Page size
Images per page
Image resolution in the PDF
Image
Icon sizes (px)
Video

Lower resolutions reduce file size. The video will not be enlarged.

Audio
Bitrate

Higher means better sound and a larger file. “Auto” keeps the bitrate of the original (at least 128 kbit/s); from lossless files it uses the format’s high-quality setting.

Sample rate
Channels
Cut (optional)

Times such as 1:30 or 0:45.5. Leave empty to keep the whole recording.

Picture

The video shows this picture for the whole length of the sound – for example to upload music or a podcast to YouTube.

Video size
Document
Resolution
Pages to convert

Several pages arrive as a ZIP with one image per page.

Shown by e-readers in the library; leave empty to keep what the document says.

PDF/A-2b embeds all fonts so the file looks the same in many years; required by many courts and public offices.

Scales every sheet so it fits on a single page instead of being split across several.

Sheets

CSV and TSV hold one table: with “Every sheet” each sheet becomes its own file, together in a ZIP.

Separator

Excel in many European languages expects a semicolon; most other programs a comma.

Convert on our server?

If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 7 days so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Audio and video files are uploaded only after you accept and are converted on our server. The input is deleted after processing; results are kept for 7 days. Privacy details

How to use: AAC Converter

  1. 1 Choose or drop your AAC files (up to 10 at once).
  2. 2 Pick the output format for each file, or one format for all of them.
  3. 3 Optionally open “Options” to set bitrate, sample rate, channels or a start and end time.
  4. 4 Click “Convert” and confirm the upload; follow the progress of each file.
  5. 5 Download the converted files when they are ready (kept for 7 days).

About this tool

AAC is the successor of MP3: better sound at the same size, used by Apple, YouTube and most streaming services.

This converter turns AAC files into any common audio format: AC3, AIF, AIFC, AIFF, AU, CAF, FLAC, M4A, M4B, M4R, MKA, MP3, OGA, OGG, OPUS, VOC, WAV, WEBA, WMA and WV. It can also make a video (MP4, MOV, WebM and more) that shows the cover art while the sound plays. Choose the target for each file, keep full quality or set bitrate and channels, cut out a part, and convert up to 10 files at once in the background.

Files are converted on our server: the upload starts only after you confirm, the original is deleted after conversion and the result is kept for 7 days unless you delete it sooner.

Frequently asked questions

Which formats can I convert AAC to?

To AC3, AIF, AIFC, AIFF, AU, CAF, FLAC, M4A, M4B, M4R, MKA, MP3, OGA, OGG, OPUS, VOC, WAV, WEBA, WMA and WV – and into a video such as MP4 for YouTube.

Which format should I choose?

MP3 plays everywhere; M4A (AAC) gives better sound at the same size and suits Apple devices; WAV or FLAC keep full studio quality for editing and archiving.

Can I convert several AAC files at once?

Yes, up to 10 at a time, each to its own format if you like, each with its own progress.

How large can a file be?

Each file can be up to 300 MB and 10 hours long.

What happens to my files?

They are uploaded only after you confirm. Originals are deleted right after conversion; results are kept for 7 days unless you delete them sooner.

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