Free tool

FLAC to MP3 Converter

FLAC keeps every detail of the original audio, but some phones, car stereos and apps still won't play it, and the files fill storage quickly. Make an MP3 copy here; starting from a lossless source gives the encoder the full original to work from.

01 — Your file

Choose a file

02 — Result

Your converted file

Choose a file and press Convert to MP3. The conversion runs in this tab, so even large files never leave your computer or phone.

Converting FLAC to MP3

  1. Open a FLAC file with the box above.
  2. Choose 320 kbps to stay close to the original, or 192 kbps to save more space.
  3. Convert and download.

Why convert from FLAC at all

FLAC is lossless: decode it and you get back exactly the audio that was recorded or ripped. That makes it ideal for an archive and wasteful for a phone. A typical album in FLAC takes a few hundred megabytes; the same album as 320 kbps MP3 is roughly a third of that or less, and at 192 kbps it shrinks further. Some cars, older iPods, many smart speakers' local playback and plenty of web forms also accept MP3 only.

The best case for an MP3

Every MP3 is a lossy encoding of something. Encoding from FLAC means the encoder starts from a perfect copy, so the MP3 is as good as that bitrate allows. Converting an MP3 that was itself made from another lossy file stacks two rounds of loss. If you keep your music in FLAC and make MP3s only when a device needs them, every copy is first-generation.

High-resolution FLAC

FLAC files from studios and download stores are sometimes 24-bit at 96 kHz or higher. MP3 can't carry that, and the converter resamples them to a standard MP3 rate as part of encoding. Nobody can hear the difference on a portable device, and it keeps the MP3 compatible with every player.

Keep your FLAC files

Converting doesn't change the original, and you should keep it. If you ever need a different format, such as AAC for an Apple device, you can make it from the FLAC again with the audio converter without any loss building up. The audio bit depth and sample rate explainers go into what the high-resolution numbers mean.

How the free converter works

The converter is ffmpeg, the open-source media toolkit, compiled to WebAssembly so it runs inside your browser tab. Your file is read straight from your disk by that engine; it is never uploaded to mydubly or anywhere else, and no account is needed.

  • The engine is about 30 MB and downloads the first time you convert something. After that your browser normally keeps it.
  • Large inputs are fine because the file is read in place, but the result is built in memory, so outputs are capped at about 1.5 GB.
  • Speed depends on your device. Copying streams takes seconds; re-encoding video is the slow case.
  • Keep the tab open until the download button appears. Closing it stops the conversion.

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Frequently asked questions

Is 320 kbps MP3 as good as FLAC?

Not identical, since MP3 is lossy, but very hard to tell apart in most listening conditions. FLAC is still better for archiving.

Will converting FLAC to MP3 change my original file?

No. You download a new MP3; the FLAC on your device is untouched.

Can I convert a whole album at once?

One track at a time. Each conversion takes a few seconds, and the engine stays loaded between files.

Should I convert FLAC to WAV instead?

Only if your software needs WAV. Both are lossless; FLAC is simply smaller.