FLAC to MP3 converter online
Drop a FLAC file and get an MP3 in seconds. The conversion runs inside your browser with the Web Audio API, so the file never leaves your device and there is no queue or size fee.
- Choose or drop the FLAC file
- Pick the quality (128 kbps is right for speech)
- Click Convert and download the MP3
Drop a FLAC file here or
Runs in your browser. The file is not uploaded anywhere.
When you need FLAC to MP3
- Voice messages from WhatsApp, Telegram or Signal arrive as FLAC; many players, CRMs and e-mail clients only accept MP3.
- Course platforms, podcast hosts and video editors expect MP3 for audio-only uploads.
- MP3 at 128 kbps is a tenth of the size of WAV while staying perfectly fine for speech.
Good to know
- Decoding uses the browser's own codecs. Chrome and Edge support OGG, Opus, M4A, AAC, WAV, FLAC, WebM and MP4; Safari and Firefox may refuse some of them.
- Very large files (over about 500 MB or 2 hours) can exhaust browser memory; split them or transcribe directly instead.
- Video files are converted to audio only. The picture is discarded.
- Stereo stays stereo; sample rate is kept as in the source.
Frequently asked questions
Is the FLAC to MP3 converter free?
Yes, without limits and without an account. The work is done by your own computer, so we have no server cost to pass on.
Is my file uploaded to a server?
No. Decoding and MP3 encoding happen in the browser tab. Close the tab and nothing remains anywhere.
Which quality should I choose?
128 kbps for speech, 192 or 320 kbps for music. Higher bitrates make bigger files, not clearer speech.
Can I turn the MP3 into text afterwards?
Yes. Open the transcriber, drop the MP3 and get text with timestamps and speakers. Actually, you can drop the original FLAC file there too.
Convert audio and video to MP3
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