Free Audio Converter — MP3, FLAC, WAV, AAC & M4A
Convert audio files you already own between MP3, FLAC, WAV, AAC, and M4A — free, right in your browser. Drag in a file, choose your output format and quality, and download the result in seconds. No account, no software to install, and your files are deleted from the server after conversion.
Drag & drop an audio file here, or browse
Free: the Audio Quality Cheat Sheet. 128 vs 320 vs FLAC, and exactly which format to pick for your phone, car, or DJ set, on one page you can keep. Instant download.
Get the free cheat sheet →Why Use MusicToMP3Converter?
A fast, honest audio converter for files you already own — including 320kbps MP3 at no cost
MP3, FLAC, WAV, AAC & M4A
Convert between every common audio format. MP3 for universal compatibility, FLAC for lossless archiving, WAV for uncompressed editing, AAC and M4A for smaller files on Apple devices. Work format by format with our MP3 converter, FLAC converter, WAV converter, and AAC converter.
320kbps — Free, Not Paywalled
Many free converters cap MP3 output at 128kbps. Here you get 128, 192, or 320kbps — the highest standard MP3 bitrate — at no cost. One honest note: a higher bitrate can't add detail that isn't in your source file, it only avoids adding more loss. Our audio quality guide explains when it's worth it. Need a specific target? Use our convert to 320kbps MP3 tool, or compress a file to a smaller size.
Private by Design
Your file is uploaded only to be converted. The result is streamed straight back to your device, and both copies are deleted from the server afterward. No accounts, no tracking of your audio, nothing kept.
No Login, No Account, No App
Convert audio without creating an account, entering personal information, or installing any software. Choose a file, pick your format, download. Free, no registration — every time.
Works on Every Device
Runs in any browser on Windows, Mac, Linux, Android, and iOS. Nothing to install. Convert on your phone, tablet, or desktop — then play the file on any media player, Bluetooth speaker, car stereo, or MP3 player.
Fast — Seconds Per File
Conversions run server-side and come back in seconds for a typical track. Drop a file, choose a format, and your converted audio is ready to download almost immediately.
How to Convert an Audio File
Three steps — from your file to the format you need. New to audio formats? Read our audio quality guide.
Choose Your File
Drag an audio file onto the box above, or click browse and pick one from your device. MP3, FLAC, WAV, AAC, M4A, OGG, and Opus files are all supported, up to 30MB each.
Pick a Format and Quality
Select your output format: MP3 (most compatible), AAC or M4A (compact, Apple-friendly), WAV (uncompressed), or FLAC (lossless). For MP3 and AAC, choose your bitrate — 128, 192, or 320kbps.
Convert and Download
Click Convert & Download. Your file is transcoded and returned to your device in seconds, then removed from the server. That's it — no waiting on email, no sign-in.
What People Use It For
- Play Anywhere — Convert a FLAC or M4A file to MP3 so it plays on a car stereo, MP3 player, or older device that doesn't handle every format.
- Save Space — Turn bulky WAV or FLAC files into 192 or 320kbps MP3 or AAC to fit more music on a phone or USB drive.
- Prep for Editing — Convert a compressed file to WAV for use in a video editor, DAW, or podcast tool that prefers uncompressed audio.
- Apple-Friendly Files — Convert to AAC or M4A for clean playback in Apple Music, iTunes, and on iPhone or iPad.
- Archive in Lossless — Convert WAV masters to FLAC to keep full quality at a smaller size for long-term storage.
- Transfer to USB or Car Stereo — Get plain MP3 files you can copy to a USB stick and plug straight into a car or home receiver.
Which Audio Format Should You Choose?
The right output format depends on where the file is going. A quick guide:
- MP3 — the safe default. Nearly every device, app, car stereo, and player reads it. Pick 320kbps for the best quality, 192kbps for a good balance, or 128kbps for the smallest files. See the MP3 converter.
- AAC / M4A — similar size to MP3 but a little more efficient, and the natural fit for Apple Music, iTunes, iPhone, and iPad. See the AAC converter.
- FLAC — lossless compression. Keeps every bit of detail from the source at roughly half the size of WAV. Ideal for archiving. See the FLAC converter.
- WAV — uncompressed and universally editable. Best when you're feeding audio into a video editor or DAW. See the WAV converter.
Remember that converting to a lossless format like FLAC or WAV doesn't restore quality that a lossy source (like a 128kbps MP3) already lost — it just avoids adding more. Our audio quality guide breaks down bitrates, lossy vs lossless, and how to pick.
Guides & Resources
Beyond converting files, our guides cover audio quality, formats, and moving your music between services and devices:
- Guides & tutorials — how audio formats and bitrates actually work, in plain language.
- MP3 converter, FLAC converter, and WAV converter — format-specific hubs covering when to use each and how to convert to it.
- What is AAC? — a deep dive on the AAC format and how it compares to MP3.
- Convert to 320 kbps MP3 — how bitrate affects quality and how to get the highest-quality MP3.
Frequently Asked Questions
Yes. No credit card, no subscription, no hidden fees. Convert as many of your own audio files as you like.
You can upload MP3, FLAC, WAV, AAC, M4A, OGG, or Opus files and convert them to MP3, AAC, M4A, WAV, or FLAC. That covers the common conversions like FLAC to MP3, WAV to MP3, M4A to MP3, and FLAC to WAV.
For MP3 and AAC you can choose 128kbps, 192kbps, or 320kbps. WAV and FLAC are lossless formats and have no separate bitrate setting — they always keep full detail from the source.
No. Your file is uploaded only to be converted, the converted file is streamed back to you, and both are deleted from the server afterward. We do not store, share, or analyze your audio.
Yes. Uploads are currently capped at 30MB per file, which comfortably covers a typical single track. For larger files, convert them one at a time.
No. The converter runs entirely in your web browser. There is no app, extension, or software to install, and no account to create.
No. Converting can never add quality that isn't already in the source file. Turning a 128kbps MP3 into a 320kbps MP3, or into FLAC, produces a larger file but not a better-sounding one. Choose a higher bitrate or a lossless format mainly to avoid adding a second round of compression. See our audio quality guide.
Yes. It works in any modern browser on Android, iOS, Windows, Mac, and Linux. Pick a file from your device, convert it, and the result downloads back to the same device.
Ready to Convert Your Audio?
Drop in a file and pick your format. Free, no signup required.
Start Converting