This free online MP3 to FLAC converter lets you change mp3 audio files into flac audio format right inside your web browser. There is nothing to install, no account to create and no watermark added to your result.
Unlike most converters, EverythingConverter never uploads your files to a server. The entire MP3 to FLAC conversion happens locally on your own device, which means your documents and media stay completely private and the process works even on slow connections.
How to convert MP3 to FLAC
- Click the upload area above or drag and drop your MP3 file into it. You can also browse and pick a file from your device.
- EverythingConverter reads the file directly in your browser and starts to convert it to FLAC automatically. Nothing is sent to any server.
- When the conversion finishes, your new FLAC file downloads right away. You can convert another file at any time, completely free.
MP3 and FLAC explained
What is a MP3 file?
MP3 is the most popular audio format in the world. Its lossy compression produces small files that play on virtually any device, which made it the standard for music and podcasts.
What is a FLAC file?
FLAC is a lossless audio format that compresses sound without throwing away any data. It keeps perfect CD quality while using about half the space of WAV, which makes it a favorite among audiophiles.
Convert MP3 to FLAC on any device
You can convert MP3 to FLAC on Windows, Mac, Linux, Chromebook, Android and iPhone, straight from Chrome, Safari, Edge or Firefox. There is no app to install and no account to create. Because the conversion runs on your own device, it also works offline once the page has loaded, and you can convert as many files as you want.
Frequently asked questions
How do I convert MP3 to FLAC for free?
Upload your MP3 file to the converter above and it will be turned into a FLAC file automatically. The tool is completely free, with no limits on how many files you can convert and no watermark on the result.
Is it safe to convert MP3 to FLAC here?
Yes. EverythingConverter converts your MP3 file entirely inside your browser. Your file is never uploaded to a server, so no one but you ever has access to it. This makes it one of the most private ways to convert MP3 to FLAC online.
Can I convert multiple MP3 files at once?
Yes. You can drop or select as many MP3 files as you like and they are all converted to FLAC in one batch, then bundled into a single ZIP download. It is the fastest way to bulk convert MP3 to FLAC.
Do I need to install any software?
No. The MP3 to FLAC converter runs in any modern web browser on Windows, macOS, Linux, Android and iOS. There is nothing to download or install.
Is there a file size limit?
Because the conversion runs on your own device, the practical limit depends on your computer's memory rather than a server quota. Most everyday MP3 files convert instantly, and there is no artificial cap.
How long does it take to convert MP3 to FLAC?
For typical files it is almost instant, since the conversion happens locally with no upload or download wait. Large media files take a little longer because your device does the encoding, but there is never a queue.
What is the difference between MP3 and FLAC?
MP3 is the most popular audio format in the world. Its lossy compression produces small files that play on virtually any device, which made it the standard for music and podcasts. FLAC is a lossless audio format that compresses sound without throwing away any data. It keeps perfect CD quality while using about half the space of WAV, which makes it a favorite among audiophiles. Converting MP3 to FLAC gives you the strengths of the FLAC format for your specific use case.
Will converting MP3 to FLAC improve quality?
Converting from a compressed format like MP3 to FLAC cannot add detail that was already lost, but it will not degrade the file any further. FLAC preserves exactly what is in your MP3 file.