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FLAC to MP3 Converter

Make a portable MP3 from a lossless FLAC library, up to 320 kb/s.

Converters Reviews Free · no sign-up

Drop a FLAC here, or click to choose one

Converted on your device — the file is never uploaded

Result

Quick Tool Overview

The FLAC to MP3 Converter makes a portable MP3 from a lossless master at up to 320 kb/s — a first-generation encode, which is the best-sounding MP3 of that recording you can get.

What it does
Converts lossless audio to MP3
You give it
A FLAC, ALAC, WAV or APE file
You get back
An MP3 at up to 320 kb/s
Best for
Putting a lossless library on a phone
Converters Free, unlimited use No sign-up Runs in your browser

About the FLAC to MP3 Converter

A FLAC library is the right way to keep music: lossless, compressed, an exact copy of the disc. It is also far too large for a phone, unplayable on plenty of hardware, and an awkward thing to send to anyone. The usual answer is to keep the FLAC as the master and make MP3s from it.

The conversion runs in your browser through ffmpeg.wasm — the real ffmpeg, compiled to WebAssembly. Nothing is uploaded: a wedding video, a client recording or an unreleased track never leaves your machine. The engine is a one-off download of about 32 MB, after which your browser caches it and every later conversion starts immediately.

Because FLAC is lossless, this is a first-generation encode — the best-sounding MP3 you can make of that recording. 320 kb/s is the default for a library; lower bitrates are there when size matters more. An album at FLAC is typically 250 to 400 MB and comes out around 90 MB at 320 kb/s. ALAC, WAV and APE files can be dropped in as well.

Key features of the FLAC to MP3 Converter

First-generation encode

From a lossless source, so no earlier loss is baked in.

320 kb/s by default

The usual choice for a music library.

Lossless inputs

FLAC, ALAC, WAV and APE all accepted.

Keeps your master

The FLAC is untouched; the MP3 is the portable copy.

Nothing is uploaded

ffmpeg runs inside the browser tab, so the file never leaves your computer.

How to use the FLAC to MP3 Converter

  1. 1

    Drop the FLAC in

    ALAC, WAV and APE are read too.

  2. 2

    Choose the bitrate

    320 kb/s for a library; less if size matters more.

  3. 3

    Set the details

    Sample rate, channels, trimming, loudness.

  4. 4

    Convert and download

    Keep the FLAC as your master.

Frequently asked questions

Yes — MP3 is lossy and FLAC is not. Encoding from a lossless source gives the best possible MP3 of that recording, but it is still a one-way step. Keep the FLAC.

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