Free tools
Convert MP3 to M4A for free
Use this online MP3 to M4A converter in your browser: add one MP3 file and download an M4A. This free conversion needs no signup or upload.
Drop a file or click to choose
Free · no signup · runs in your browser · nothing uploads
Want the words, not just the clip?
Try a speaker-labeled preview of up to 5 minutes from your audio or video before creating an account, then get another free preview of your first upload in the app.
Get 30 free minutesWant the words, not just the clip?
Try a speaker-labeled preview of up to 5 minutes from your audio or video before creating an account, then get another free preview of your first upload in the app.
Get 30 free minutesWhy is this free? Hushscript runs it entirely in your browser. No server processes your file, so there's nothing to charge for.
How to convert MP3 to M4A
Add one MP3 file, wait for the conversion to finish, then download the M4A. This MP3 converter writes AAC audio in an M4A file and targets 192 kbps. There is no bitrate menu. The conversion runs on your device, so the file is not uploaded.
When an M4A helps
Some players, editors and apps ask for M4A instead of MP3. If yours does, convert to M4A here and test the result in that app before you replace anything. This M4A converter handles one file at a time.
What to expect from the M4A
MP3 and M4A are both lossy. Converting from one to the other encodes the audio again, so it does not add detail and can lose a little more. File size depends on the source and its length, and the M4A is not always smaller. Keep the original MP3.
Another input or another format
To convert a WAV, FLAC or OGG file, or to pick another output, use the audio converter. To go from M4A to MP3, use M4A to MP3.
Need a transcript instead of an M4A?
You can send your original MP3 to MP3 transcription without converting it here first. Transcription is separate from this free local converter: it uploads prepared audio and requires an account. Speaker labels are available when selected. Eligible personal accounts can receive 30 free minutes once after successful card verification, or with their first purchase if not already granted.
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Frequently asked questions
Is this MP3 to M4A converter free?
Yes. Converting one MP3 file to M4A in your browser is free and needs no account. Transcription is a separate service with its own account and minute pricing.
Does converting MP3 to M4A upload my file?
No. The converter processes the MP3 in your browser and downloads the M4A to your device. Choosing transcription separately uploads prepared audio.
Can I choose the M4A bitrate?
No. This converter has no bitrate menu and targets 192 kbps. The actual bitrate can vary with the source sample rate and the encoder.
Will converting MP3 to M4A improve the sound?
No. Both formats are lossy, and detail removed from the MP3 is not restored. The M4A is a new encode of the same audio, so keep your original MP3.
Can I convert M4A back to MP3?
Yes. Use the M4A to MP3 page, where you can pick 128, 192, 256 or 320 kbps. Each lossy conversion adds another encode, so go back to the original file when you can.
Will the M4A play on every device?
Not necessarily. Playback depends on your player, and conversion depends on the audio inside the MP3 and your browser or device. Test the downloaded M4A where you plan to use it.
Can I transcribe the MP3 instead?
Yes, through the separate Hushscript transcription service, which uploads prepared audio and requires an account. Speaker labels are available when selected.
Need the words? Transcribe it with 30 free minutes
Preview up to 5 minutes before you create an account, and a new personal account gets a free preview of its first upload in the app. Full transcription needs an account and minutes; eligible personal accounts get 30 free minutes once, after card verification or with a first purchase. No subscription.
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