MP3 to FLAC Converter
Convert MP3 audio to FLAC for free. Choose the bitrate, sample rate and channels, or trim your audio.
or drop files here
Up to 1 GB per file · Files never leave your device
- 100% free
- No sign-up
- No upload — private
- No watermark
How to convert MP3 to FLAC
Add your MP3 files
Click “Choose Files” or drag and drop your MP3 audios onto this page.
FLAC is selected
The output is already set to FLAC. Open Advanced settings if you want to change the bitrate or trim the audio.
Convert and download
Click Convert. Your FLAC file is ready in moments — nothing is uploaded.
About the formats
MPEG Audio Layer III
MP3 is the most compatible audio format in the world. It plays on every device and gives small files with good sound quality.
Free Lossless Audio Codec
FLAC compresses audio without losing any quality. It is the favourite format of audiophiles and music archives.
Frequently asked questions
How do I convert MP3 to FLAC?
Click “Choose Files” and select your MP3 file (or drag it onto the page). FLAC is already selected as the output, so just click Convert and download your FLAC file when it’s ready.
Which bitrate should I choose?
FLAC is lossless, so there is no bitrate to choose — the audio is stored at full quality.
Is it safe to convert MP3 files here?
Yes. Conversion runs inside your own web browser, so your files are never uploaded to our servers or anyone else’s. Nobody can see them, and nothing is stored after you close the tab.
Is the MP3 to FLAC converter free?
Yes, it’s completely free. There’s no sign-up, no watermark and no limit on how many files you convert. Each file can be up to 1 GB.
Can I convert several MP3 files at once?
Yes. Add as many MP3 files as you like and convert them in one go, then download them one by one or together as a ZIP file.