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Convert FLAC to MP3 for free

Convert your FLAC files to MP3 right in your browser, one or many at a time, without uploading them to any server.

Your audio never leaves your device. 100% local processing in your browser, with no usage caps.

Drag your audio files here or click to choose them

  • .flac

Use your Google Drive without giving up your privacy

Pick files from your Drive, process them here and save the result to any folder you like. Everything happens in your browser: ShiftAny has no servers of its own.

  1. Your Google Drive
  2. Your browserAll processing happens here
  3. Your Drive or your device
ShiftAny servers: none
  • Your files travel straight between Google and your browser. They never touch a server of ours, because we don’t have any.
  • Processing runs on your device, exactly as it does with a file from your computer.
  • The app can only access the files you pick and the ones it saves to your Drive. Never the rest.
  • Access expires after one hour and is never stored. This browser only remembers your name and email so you can reconnect in one click; you can disconnect at any time.
Processing
In your browser
Upload
No upload to ShiftAny
Account
No sign-up
Price
Free
Input
FLAC
Output
MP3
Platform
Web browser

How to use “FLAC to MP3”

  1. Add the FLAC files you want to turn into MP3: you can drop several at once.
  2. For music, choose 256 or 320 kbps: they are the options most faithful to the FLAC.
  3. Click “Convert to MP3” and wait while each FLAC is processed.
  4. Download each MP3 on its own, or all your converted FLAC files in a ZIP.

From FLAC to MP3: what to expect

FLAC stores audio without loss; MP3 compresses it by discarding barely audible information. Going from FLAC to MP3 cuts the size a lot and works in any player, but it is a one-way change: keep your FLAC as the master file. For music, 256 or 320 kbps are the most faithful options.

Are my files uploaded?

No. ShiftAny Audio processes your audio directly on your device: this tool runs in your browser and never sends your files to any server.

Limits and metadata

ShiftAny sets no duration or size limits: the real ceiling is your device’s memory, because the audio is decompressed to be processed and an hour of stereo takes more than 1 GB. With very long files, we warn you before loading them. The new file contains only the audio: tags (title, artist, cover art) are not copied.

Frequently asked questions

Do I lose quality converting FLAC to MP3?

Yes, MP3 is a lossy format. At 256–320 kbps the difference is very hard to notice for most ears and equipment.

Is the original sample rate kept?

It is kept if the MP3 standard supports it (up to 48 kHz). FLAC files at 96 kHz or more are converted to 48 kHz.

How much smaller is the MP3 than the FLAC?

At 320 kbps, an MP3 is usually between a third and half the size of the FLAC of the same song; at 192 kbps, about a fifth.

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