Convert MP3 to FLAC
Free online MP3→FLAC converter. Fast, private, no sign-up.
How to convert MP3 to FLAC
- 1Drop your MP3 file into the bay above (or click to browse).
- 2We auto-detect the format and preset the target to FLAC.
- 3Hit convert — then download your new FLAC file.
About converting MP3 to FLAC
Converting MP3 to FLAC is one of those small tasks that should be instant and free — and here it is. Drop in your MP3 file (a .mp3) and download a ready-to-use FLAC file (a .flac) — no software to install, no account to create, and no watermark on the output.
What is MP3?
MP3 is the most universally compatible audio format ever made — lossy, small, and playable on absolutely everything. The safe default when you just need audio that works anywhere.
What is FLAC?
FLAC is lossless but compressed, giving bit-perfect audio at roughly half the size of WAV — the audiophile and archival choice.
Why convert MP3 to FLAC?
Most people convert MP3 to FLAC for compatibility — a website, app or device insists on FLAC, and MP3 simply won't open. FLAC is widely supported, which makes it a dependable target. Audio is processed with ffmpeg using high-quality encoders (LAME, libopus, libvorbis, FLAC and more), so you get the best possible result for the destination format.
MP3 vs FLAC: what changes
Going from the lossy MP3 to the lossless FLAC won't recover detail MP3 already discarded, but it gives you a clean, re-editable copy that won't degrade further when you edit and re-save it.
When you'd convert MP3 to FLAC
You might be optimising images for a faster-loading page, exporting for a specific app or marketplace, or just making sure a colleague on a different device can open what you send.
Is it private?
Privacy is the default here. Your MP3 file is uploaded over an encrypted connection, converted, downloaded the moment it's ready, and then deleted automatically a short time afterwards. We never keep your files, never build a library of your content, and never make you sign up to download the result.
Ready? Use the converter above, or explore related conversions: turn MP3 into a different format, or convert another format into FLAC. Everything on Convert Me Pls is free, unlimited and watermark-free.
Frequently asked questions
Is the MP3 to FLAC converter free?
Yes. Convert Me Pls is completely free with no sign-up, no file-count limits and no watermarks added to your output.
Are my files private?
Your files are uploaded over an encrypted connection, converted, and then deleted automatically a short time afterwards. We never keep your files and never build a library of your content.
Will I lose quality converting MP3 to FLAC?
We use the best available encoders (libvips, ImageMagick and ffmpeg) at high-quality settings for the cleanest possible result.
Is there a file size limit?
Conversions run on our servers and support large files comfortably; very large media is processed in a streaming pipeline.