Turn M4A files into MP3s that play everywhere: in car stereos, old media players, editing apps and upload forms that reject M4A. Add one file or a whole batch, convert, and download. The conversion runs in your browser, so your recordings are never uploaded.
Converts M4A (AAC audio) to MP3
Several files in one go
Runs in your browser: nothing is uploaded
Works on Windows, Mac, Android and iPhone browsers
Also takes WAV, FLAC, AAC, OGG and WMA, and can output any of them
Free, no signup, no watermark
Voice Memos saves M4A. Convert a lecture, interview or meeting recording to MP3 to share or edit it anywhere.
Portals, podcast hosts and some editing apps list MP3 but not M4A. Convert first, then upload.
Many USB car stereos and basic MP3 players can't read M4A. MP3 plays on all of them.
M4A is an MPEG-4 audio file, usually holding AAC audio. Apple uses it for Voice Memos, iTunes purchases and GarageBand exports, and many Android recorders and messaging apps use it too. It sounds good at small sizes, but not every device or app opens it.
MP3 is older and plays almost everywhere. Converting is the simplest way to make a recording work on whatever device or site you need.
Both formats are compressed, so converting re-encodes the audio. For speech (memos, calls, lectures) you won't hear a difference. For music, keep the original M4A as your master copy and use the MP3 for compatibility.
After converting, shrink the MP3 further for email, WhatsApp and uploads without wrecking the sound.
How to run an IVR in Tamil, Telugu, Bengali, Marathi, Gujarati, Kannada, Malayalam, Odia, Punjabi or any other language using recorded audio prompts: writing the script per language, recording tips, file formats (mp3, wav, m4a, ogg up to 5 MB) and keypad input.
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