Convert MP3 to FLAC

Convert MP3 to FLAC online for free. Upload your MP3 and get a high-quality FLAC in seconds. No install, no watermark, files deleted automatically.

Free online MP3 to FLAC converter

Convert MP3 to FLAC in a few clicks. Add your MP3 above, and Tool Cloud converts it on our servers and gives you a FLAC to download, with no software to install and no watermark.

How to convert MP3 to FLAC

1
Upload your MP3 file
Click "Select Files" or drag and drop your MP3 into the upload box.
2
Adjust the options
Optionally pick quality, size or other settings for your FLAC output.
3
Download your FLAC
Click "Process", wait a few seconds, then download your converted FLAC.

About the formats

MP3MPEG Audio Layer III

MP3 is the most popular audio format. Its lossy compression makes music and podcasts small enough to stream and store, and it plays on every device.

FLACFree Lossless Audio Codec

FLAC is a lossless audio format that compresses music to about half the size of WAV without losing any quality, making it the favorite of audiophiles.

Frequently asked questions

How do I convert MP3 to FLAC?

Add your MP3 above, click "Process", and download the FLAC when it is ready. It usually takes just a few seconds.

Is the MP3 to FLAC converter free?

Yes. Each use costs 4 credits, and everyone gets 20 free credits every day without an account. Sign up to get 50 free credits, or buy a credit pack if you need more.

Will converting MP3 to FLAC reduce quality?

FLAC is a lossless format, so converting MP3 to FLAC keeps all the detail that is in your MP3 file. Note that it cannot restore detail that was already lost in a lossy original.

Are my files safe?

Yes. Your files are only accessible to you, are transferred over an encrypted connection, and are deleted automatically after processing.

Can I convert multiple MP3 files to FLAC at once?

Yes. Select several files at once and Tool Cloud converts them all. You can download each FLAC when it is ready.

Why Tool Cloud

Fast, private and built for real work

Everything runs on our servers, so it works the same on any device.

Lightning fast

Files are processed in seconds by a dedicated worker queue, with live progress while you wait.

High quality output

Professional-grade engines like FFmpeg and Pillow keep your output crisp and faithful.

Secure & private

Uploads are only visible to you and are deleted automatically after processing.

Keep going

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