Any audio.
Your format.
Convert M4A, WAV, OGG, or FLAC to MP3 — or anything to lossless WAV — entirely in your browser. No upload, no account, no size limit.
How do I convert M4A to MP3 for free? Load the file, choose MP3 (192 kbps) or WAV, and press Convert. The audio is decoded and re-encoded on your device — a typical song takes a few seconds, and nothing is uploaded.
Audio converter
Play the preview to check the file first. MP3 output is 192 kbps — transparent for everyday listening; choose WAV when you need a lossless copy of the decoded audio.
What happens when you convert audio
The tool decodes your file back to raw audio samples using your browser's audio engine, then re-encodes them in the format you chose — all on your device. That's why mixed inputs work: an M4A from a voice memo and a WAV from a recorder become the same thing (samples) before the output is written. The whole conversion is deterministic and local: no server ever sees the file.
Which output should you pick?
- MP3 (192 kbps) — the universal choice: plays everywhere, small files, transparent quality for speech and everyday music. The standard pick when a platform or device demands MP3.
- WAV (lossless) — an exact copy of the decoded audio. Choose it for editing, archiving, or feeding another tool; expect files roughly 10× the size of MP3.
- The honest caveat — converting from a lossy format can't recover what it lost; M4A → MP3 re-encodes an already-compressed source. It's fine for compatibility, but if you have the original recording, convert from that.
Common reasons people convert audio
An M4A voice memo that an older device won't play. A FLAC album for a player that only takes MP3. A WAV export for a video editor. A batch of interview recordings that need one consistent format. And privacy-sensitive audio — legal calls, medical notes, family recordings — where uploading to a converter site is simply not an option. Related tools: merge audio files, trim and make ringtones, or extract sound from a video with video to MP3.
How do I convert M4A to MP3 for free?
Load the M4A file, pick MP3 as the output, and press Convert. The file is decoded and re-encoded on your device at 192 kbps — nothing is uploaded and there is no file-size limit.
Which formats can I convert from and to?
Input: anything your browser can decode — MP3, M4A/AAC, WAV, OGG, FLAC, and WebM audio. Output: MP3 at 192 kbps (small and universally compatible) or WAV (lossless 16-bit PCM).
Will converting lose quality?
Converting to WAV is lossless — it is an exact copy of the decoded audio. Converting to MP3 re-encodes at 192 kbps, which is transparent for speech and music playback; converting between two lossy formats (like M4A to MP3) always costs a small generation of quality.
Is there a file size or length limit?
No fixed limit — the conversion runs on your device, so the practical limit is your computer's memory. A typical song converts in a few seconds; long recordings take longer since encoding is linear in length.
Why convert in the browser instead of an online converter?
Upload-based converters send your audio to a server, where it may be stored or logged. This tool never uploads anything — the decode and encode happen in your browser tab, which you can verify in the network panel or by working offline.