Convert an AAC File to MP3
AAC to MP3 converter takes an Apple-format audio file (a YouTube download, a streaming recording, an audio export from another app) and gives it back as an MP3 that plays on any device or player. Upload the file and download the converted copy, no software or account setup beyond signing in.
What you get:
- An AAC file converted to MP3, ready to download
- Free online tool takes files up to 2 GB
- bulk upload of multiple files, so several AAC files convert in one batch
- A transcript of the audio, with speaker labels, in 100+ languages
- AI chat with any recording, so you can ask the converted file a question instead of listening back
- Export the transcript as PDF, DOCX, TXT, SRT and VTT
- Free plan: 3 uploads, lifetime, each with the transcript and AI chat included
How to Convert AAC to MP3
- Upload your AAC file: from a computer, phone, or tablet. The free online tool takes files up to 2 GB.
- Let it process: the file converts to MP3 and the audio transcribes at the same time. Both are ready in your library once processing finishes.
- Download the MP3: open the file and download it. The transcript, speaker labels, and AI chat are attached to the same recording.
Transcript quality follows the audio: clear narration transcribes cleanly, and a recording with heavy background noise or several people talking over each other will have more gaps. See how we measure accuracy.
AAC to MP3 Converter vs Other Tools
| Feature | ScreenApp | CloudConvert | FreeConvert | Zamzar |
|---|---|---|---|---|
| Max file size, free | 2 GB in the free online tool | 1 GB | 1 GB | 50 MB |
| Free allowance | 3 uploads, lifetime | 10 credits/day | 20 minutes/day | Not stated |
| Paid plan | $19/month annual | Not stated (credit packs, priced by volume) | $12.99/month | Not stated |
Sources, checked 2026-09-12: ScreenApp pricing, cloudconvert.com/pricing, freeconvert.com/webm-to-mp4, zamzar.com/convert/mp4-to-pdf/, freeconvert.com/pricing
- vs CloudConvert: CloudConvert gives free accounts 10 conversion credits a day and caps free files at 1 GB. ScreenApp’s free plan is 3 uploads with no daily reset, and the free online tool takes files up to 2 GB. It also adds a transcript.
- vs FreeConvert: FreeConvert’s free web tier is 20 conversion minutes a day, and its Basic plan is $12.99 a month. ScreenApp includes the transcript and AI chat on every converted file, free or paid.
- vs Zamzar: Zamzar caps free conversions at 50 MB per file. ScreenApp’s free online tool takes files up to 2 GB and adds a transcript with the conversion.
Who Converts AAC to MP3
YouTube music downloaders end up with AAC files because that is a common output of YouTube audio downloads. Converting to MP3 makes the track play on devices and players that do not open AAC.
Podcasters and audio creators convert AAC recordings to MP3 because most podcast hosting platforms expect that format for upload.
Streaming service users convert recorded or downloaded audio that comes in AAC format so it plays on devices that do not natively support AAC.
Older device owners convert modern AAC audio files to MP3 so they play on older MP3 players and car stereos that never supported AAC.
Audio collectors and archivists convert AAC music libraries to MP3 for long-term compatibility with players and editing software that expect the older format.
