Skip to content
FLAC to MP3

Free online audio converter

FLAC to MP3 online

Convert FLAC files to MP3 right in your browser — no software to download, no files uploaded to a server. Pick 128–320 kbps, drop your tracks, and grab the tagged MP3s.

  • 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 online

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

  1. Open the tool in your browser

    No download needed — the converter loads right on this page. It works in Chrome, Firefox, Safari, Edge, and any modern browser on desktop or mobile.

  2. Drop your FLAC files

    Drag one or more .flac files onto the drop zone, or click it to open a file picker. Your files stay on your device — nothing is uploaded to a server.

  3. Pick a bitrate and download

    Choose 128, 192, 256, or 320 kbps. Conversion starts automatically. Grab each MP3 individually or hit the ZIP button to download everything at once. Tags and cover art are preserved.

What happens when you convert FLAC to MP3 online

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 tool 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 desktop tools like fre:ac, foobar2000, VLC, and ffmpeg. Same encoder, same bitrate, same output — the software comparison covers this in detail. The difference is that this online tool needs no installing or configuring: open a browser tab, convert your files, close the tab.

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 Online — FAQ

Is this really an online converter if nothing is uploaded?

Yes — "online" means you open a web page instead of installing software. The conversion itself runs on your device using the browser's built-in FLAC decoder and the LAME MP3 encoder compiled to JavaScript. Your audio never leaves your computer.

How do I convert FLAC to MP3 online for free?

Drop your .flac file onto the tool above, pick a bitrate (320 kbps is the default), and download the MP3. There is no signup, no daily limit, no paid tier, and no watermark — the tool is completely free.

Can I convert multiple FLAC files to MP3 online at once?

Yes. Drop up to 20 files in one batch. They process one after another, and a typical 4-minute track finishes in 5–15 seconds. When the batch is done, use the ZIP button to download every MP3 in a single archive.

Is there a file-size limit for online FLAC to MP3 conversion?

No. Because everything runs locally in your browser, there is no upload and therefore no server-imposed size cap. You can convert multi-gigabyte hi-res FLAC files without hitting a limit.

Does converting FLAC to MP3 online lose quality?

MP3 is a lossy format, so some data is discarded during encoding. At 320 kbps the discarded parts sit in frequency ranges masked by louder sounds (psychoacoustic masking), making the difference inaudible in blind tests. Keep your FLAC originals as the archive copy.

Which browsers support online FLAC to MP3 conversion?

Any modern browser with Web Audio API support — Chrome, Firefox, Safari (14+), Edge, Opera, and Brave. The converter also works on iOS Safari and Android Chrome, though conversion is slower on mobile devices.

Are my files private when I convert FLAC to MP3 online?

Completely. Decoding and encoding happen entirely on your device. No audio, filenames, or metadata leave your browser — not even temporarily. There is nothing to delete from a server because nothing was ever sent.

Will my tags and album art survive the online 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.

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.

  • FLAC to MP3 converter

    Browser-based FLAC to MP3 converter: pick 128–320 kbps, drag and drop your files, and get tagged MP3s back in seconds — no install, no upload.

  • 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.

  • Standard FLAC to MP3 converter

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