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FLAC to MP3

Free online audio converter

FLAC to MP3 converter

Drop your FLAC files below and this converter turns them into MP3s at the bitrate you choose — 128 to 320 kbps. It runs entirely in your browser, so nothing is uploaded, no software is installed, and your files stay on your device from start to finish.

  • No install needed
  • No upload
  • 128–320 kbps
  • Tags & cover art kept
  • 100% free
MP3 bitrate

320 kbps — best quality, ~2.4 MB per minute

How to convert FLAC to MP3

Three steps — everything happens in your browser, nothing to install.

  1. Drop your FLAC files into the converter

    Drag one or more .flac files onto the drop zone below, or click it to open a file picker. Everything stays on your device — the converter runs inside your browser, not on a server.

  2. Pick an MP3 bitrate

    Choose 128, 192, 256, or 320 kbps. 320 kbps is the default and the highest quality MP3 supports — about 2.4 MB per minute. Conversion starts automatically as soon as files land.

  3. Download the finished MP3s

    Grab each file individually, or hit the ZIP button to download the entire batch in one archive. Tags and cover art from the FLAC are already written into every MP3.

How the converter works under the hood

When you drop a FLAC file, your browser's native FLAC decoder (part of the Web Audio API) unpacks it back to raw PCM audio — the exact samples the FLAC originally compressed. That step is lossless. The raw audio is then fed to the LAME MP3 encoder, compiled to JavaScript and running in a background worker, which encodes it at the constant bitrate you selected.

Before encoding, the converter reads every Vorbis comment tag — title, artist, album, track number, year, genre, composer — and any embedded cover art from the FLAC, and writes them into the MP3 as ID3v2.3 tags. The finished file is assembled in memory and handed back to you as a download. At no point does audio, metadata, or any part of your file leave your device.

This is the same LAME encoder that powers fre:ac, foobar2000, VLC, ffmpeg, and dBpoweramp. Same encoder, same bitrate, same output — a point the software comparison covers in detail. The only difference is delivery: those tools need installing and configuring, while this converter is a browser tab you can close when you're done.

Converter specifications

InputFLAC (.flac) — 16- and 24-bit, mono or stereo, up to 192 kHz
OutputMP3 (MPEG Layer III), constant bitrate 128 / 192 / 256 / 320 kbps
EncoderLAME — the same engine behind fre:ac, foobar2000, VLC, and ffmpeg
MetadataTags and full-resolution cover art copied into ID3v2.3
Batch sizeUp to 20 files at once, with a single ZIP download
Processing100% on your device (Web Audio API + LAME in JavaScript) — nothing is uploaded
Hi-res handling88.2 / 96 / 176.4 / 192 kHz resampled to 44.1 or 48 kHz
SpeedAbout 30× real time — a 4-minute track in roughly 5–15 seconds
Install requiredNo — runs in any modern browser on any operating system
PriceFree — no signup, no watermark, no usage cap

FLAC to MP3 converter FAQ

Is this FLAC to MP3 converter free?

Yes — no signup, no daily limit, no paid tier, and no watermark on your files. Because the conversion runs entirely on your own device, there are no server costs to recoup, so there is nothing to charge for.

Do I need to install anything?

No. The converter runs in any modern browser — Chrome, Firefox, Safari, Edge — on Windows, macOS, Linux, or Chromebooks. There is no desktop app, browser extension, or plugin to install. Open the page and drop your files.

Are my FLAC files uploaded to a server?

No. Decoding and encoding happen entirely on your device using the browser's built-in FLAC decoder and the LAME MP3 encoder compiled to JavaScript. No audio, filenames, or metadata are ever sent over the network. You can even disconnect from the internet after the page loads.

What bitrate should I choose?

320 kbps for the best quality MP3 can offer — indistinguishable from the FLAC for most listeners on most equipment. 192 kbps is a good trade-off when storage matters (about 40% smaller files). 128 kbps is fine for spoken word but audibly degrades music on cymbals and complex passages.

How does this compare to desktop converters like fre:ac or VLC?

They all use the same underlying encoder — LAME — so the audio output is effectively identical at the same bitrate. The difference is workflow: desktop tools need installing and configuring, while this converter is drag-and-drop in a browser tab. For a detailed comparison, see the software roundup.

Will my tags and album art survive the conversion?

Yes. Title, artist, album, album artist, track and disc number, year, genre, and composer are read from the FLAC's Vorbis comments and written into ID3v2.3 tags. Embedded cover art is carried across at full resolution. Your converted files show up correctly in iTunes, Plex, car stereos, and phone music apps.

How many files can I convert at once?

Up to 20 files per batch. A typical 4-minute track converts in 5–15 seconds, so a full album finishes in under a minute on a modern laptop. Need more? The batch converter handles up to 40 files per run.

Can I convert high-resolution 24-bit or 96 kHz FLAC?

Yes. MP3 maxes out at 48 kHz, so higher sample rates are resampled to 44.1 or 48 kHz (staying in the same rate family for a clean conversion). The content above 22 kHz that gets trimmed is inaudible, and 320 kbps gives the encoder enough room to handle the rest transparently.

Does converting FLAC to MP3 lose quality?

Technically, yes — MP3 is a lossy format, so some data is discarded. At 320 kbps the discarded data sits in parts of the signal hidden by louder sounds (psychoacoustic masking), making the difference inaudible in blind tests. Keep your FLAC originals as the archive copy and use the MP3s for everyday playback.

More ways to convert

Converting a whole album or a large collection? The batch converter handles up to 40 files per run and delivers them as a single ZIP. Want the highest-fidelity result? The quality converter locks the bitrate to 256 or 320 kbps and explains what “without losing quality” actually means for a lossy format.

Prefer a desktop tool? The guide How to Convert FLAC to MP3 (4 Free Ways) walks through VLC, fre:ac, and the ffmpeg one-liner with exact settings. And if you're still deciding whether to convert at all, FLAC vs MP3 compares the formats head to head.

Other ways to run this converter

  • Batch FLAC to MP3 converter

    Bulk mode for whole albums: add an entire folder, convert up to 40 FLAC files in one run at a single bitrate, and download every MP3 as one ZIP.

  • FLAC to MP3 without losing quality

    Transparent-quality mode: encodes at 256 or 320 kbps only, decodes the FLAC losslessly first, and carries every tag and cover image across so nothing but inaudible data is discarded.

  • Free FLAC to MP3 converter

    The full converter with zero restrictions: no signup, no file-size limit, no daily quota, and no paid tier — runs entirely in your browser.

  • FLAC audio file to MP3

    Convert any FLAC audio file to MP3 at 128–320 kbps — right in your browser with no upload, no signup, and tags plus cover art preserved.

  • Change FLAC to MP3

    Change FLAC files to MP3 at 128–320 kbps right in your browser — drop files, pick quality, download tagged MP3s. No install, no upload, no signup.

  • Convert FLAC to MP3

    Convert FLAC to MP3 at 128–320 kbps directly in your browser — drop files, pick a bitrate, download tagged MP3s. No install, no upload, no signup.

  • FLAC to MP3 online

    Online FLAC to MP3 converter that runs entirely in your browser — no software to download, no file upload. Pick 128–320 kbps, drop files, get MP3s.

  • Standard FLAC to MP3 converter

    The default queue at 128–320 kbps — the same engine without a preset applied.