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Convert any audio file to MP3

Drop in WAV, FLAC, OGG, M4A, or almost any audio file — get a clean MP3 in seconds. Everything runs in your browser, so your files never leave your device.

Drag & drop files here

Or click to browse (max 20 files, up to 500MB each)

File upload

No account required · Processed in your browser · 100% free

Why convert audio here?

Any audio format in

Convert WAV, FLAC, OGG, M4A, AAC, OPUS, AIFF, and more to MP3. If your browser can read it, this tool can convert it — no need to hunt for a format-specific converter.

Your files stay private

Conversion happens entirely in your browser using WebAssembly. Nothing is uploaded to a server, so there's no recording, no retention, and nothing to leak.

Batch up to 20 files

Queue a whole album or a folder of voice memos and convert them in one go. Each file gets its own progress bar, and you can grab the whole batch as a single ZIP when it's done.

Quality you control

Pick a preset — High (320 kbps), Standard (192 kbps), Small (128 kbps), or Voice (64 kbps mono) — or open advanced options for sample rate, channels, and loudness normalization.

No upload wait

Because everything runs locally, you skip the upload queue completely. Even a batch of 500 MB FLAC tracks starts converting the moment you hit the button.

Free, no strings attached

No subscription, no watermark, no daily limit, no upsell. Convert as many files as you need, as often as you need.

Sometimes you just need a clean MP3

An album ripped the wrong way

You spent a Saturday afternoon digitizing a box of CDs you found at your parents' place — vinyl-era stuff that never made it to streaming. Your ripper saved everything as FLAC, which is great for a home server and useless for the old car stereo that still expects MP3s on a USB stick.

You drop the whole folder into the converter. Thirty tracks, around 4 GB of lossless audio, all staring back at you in a tidy list. You pick the High (320 kbps) preset because you don't want to hear the difference on your drive, leave sample rate on Keep source, and hit Convert.

A few minutes later you've got an MP3 for every track, a single ZIP to download, and a USB stick ready to go. The originals are still sitting in your FLAC folder, untouched — you never had to hand them over to anyone.

A batch of interviews for a transcription service

You're a journalist, and you just finished a week of field recordings on your phone. The app saved everything as M4A — fine for playback, a problem for the transcription service you use, which politely refuses anything that isn't MP3 or WAV.

You open the converter, drag in the dozen interview files, and switch the preset to Voice (64 kbps mono). Voice doesn't need stereo or high bitrates, and smaller files mean faster uploads to the transcriber later.

Two minutes later you've got a dozen MP3s at a fraction of the original size, ready to push to the transcription service. Nothing about the audio touched a cloud you didn't pick — and the interviewee who was nervous about "where this ends up" gets a straight answer.

A podcast guest sent you the wrong format

You host a weekly podcast and a guest sent their remote recording as an OGG file because their recording app defaulted to it. Your editor — and your RSS feed — want MP3. You don't want to email them back and wait another day.

You open the converter, drop in the OGG, pick Standard (192 kbps), and flip on Normalize loudness so your guest's track sits at the same level as your own when they're mixed together. A few seconds later, you're downloading a balanced MP3 straight into your edit folder.

Episode stays on schedule. Guest doesn't have to re-record. You didn't have to install anything.

1

Upload your audio files

Drop WAV, FLAC, OGG, M4A — or most any audio format — onto the page, or pick them from your device. Up to 20 files at a time.

2

Pick a quality preset

Choose High, Standard, Small, or Voice. Open advanced options if you want to tweak sample rate, channels, or add loudness normalization.

3

Convert and download

Hit Convert and watch each file encode locally in your browser. Grab MP3s one by one, or download the whole batch as a single ZIP.

  • Your files never leave your browser — nothing is uploaded or stored.
  • We never see your audio. Conversion happens entirely on your device.
  • No sign-up needed. Pick your files and go.