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FLAC to MP3

Free online audio converter

FLAC to MP3 converter

FLAC to MP3 is a free web tool that converts lossless FLAC audio into MP3 directly in your browser. It encodes at 128–320 kbps, handles up to 20 files per batch, and copies title, artist, album tags and cover art into each MP3 — with no upload, no signup, and no watermark.

  • 100% free
  • No upload
  • Up to 320 kbps
  • Batch of 20 files
  • Keeps tags & cover art
MP3 bitrate

320 kbps — best quality, ~2.4 MB per minute

How to convert FLAC to MP3

Three steps, all inside your browser — your music never touches a server.

  1. Add your FLAC files

    Drag up to 20 .flac files into the drop zone, or click it to browse. Each file is read directly on your device — nothing is sent over the network.

  2. Choose an MP3 bitrate

    Pick 128, 192, 256, or 320 kbps. The default of 320 kbps is the highest quality MP3 allows, at roughly 2.4 MB per minute of music. Conversion starts automatically, and switching bitrate re-converts the files you already added.

  3. Save the MP3s

    Download each track on its own, or grab the whole batch as a single ZIP archive. Title, artist, album tags and cover art from the FLAC are already embedded in every MP3.

Technical specifications

Input formatFLAC (.flac) — 16- and 24-bit, mono or stereo, up to 192 kHz
Output formatMP3 (MPEG Layer III), constant bitrate 128 / 192 / 256 / 320 kbps
MetadataTitle, artist, album, track, year, genre and cover art copied into ID3v2.3 tags
Batch limitUp to 20 files at once, with a single ZIP download for the whole batch
Processing location100% on your device (Web Audio API + LAME encoder in JavaScript) — no upload
High-res handling88.2 / 96 / 176.4 / 192 kHz sources are resampled to 44.1 or 48 kHz (the MP3 maximum)
SpeedAbout 30× real time — a 4-minute track in roughly 5–15 seconds
PriceFree — no signup, no watermark, no usage quota
Works offlineYes, once the page has loaded

Frequently asked questions

How do I convert FLAC to MP3 without installing software?

Open this page, drop your .flac files onto the upload zone, and download the finished MP3s — no app, account, or plugin needed. The conversion runs inside your browser using its built-in FLAC decoder and the LAME MP3 encoder compiled to JavaScript, so it works the same on Windows, macOS, Linux, and Chromebooks.

Is this FLAC to MP3 converter really free?

Yes, completely. There is no signup, no watermark, no daily quota, and no premium tier. Because your own device does the converting, there are no server costs to pass on to you.

Does converting FLAC to MP3 reduce audio quality?

Technically yes: FLAC is lossless and MP3 is lossy, so some audio data is discarded. In practice, at 320 kbps the difference is inaudible to most listeners on most equipment, while the file shrinks by roughly 60–70%. Keep your FLAC originals as the archive copy and use the MP3s for phones, cars, and players that don't support FLAC.

What bitrate should I use for FLAC to MP3?

Use 320 kbps unless you have a specific reason not to — it is the best quality MP3 supports, at about 2.4 MB per minute. Choose 192 kbps (about 1.4 MB per minute) when storage is tight, and 128 kbps only for voice recordings or audiobooks where small size matters more than fidelity.

Are my FLAC files uploaded to a server?

No. Files are decoded and re-encoded entirely on your device; no audio, filename, or tag data ever leaves your browser. You can even disconnect from the internet after the page loads and keep converting.

Will the MP3 keep my tags and album art?

Yes. Title, artist, album, album artist, track and disc number, year, genre, and composer are copied from the FLAC's Vorbis comments into standard ID3v2.3 tags, and embedded cover art is carried over too — so the converted files show up correctly in iTunes, car stereos, and phone players.

Can I convert a whole album at once?

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

What happens to 24-bit or high-resolution FLAC files?

They convert fine. MP3 tops out at 48 kHz, so 88.2/96/176.4/192 kHz sources are resampled down to 44.1 or 48 kHz (staying in the same rate family), and 24-bit samples are reduced to MP3's precision. For high-res sources 320 kbps is strongly recommended.

About this tool

FLAC to MP3 exists for one job: turning the lossless FLAC albums you archive at home into MP3s that play anywhere — older car head units, portable players, phones with limited storage, and apps that never learned to read FLAC. A typical 16-bit/44.1 kHz FLAC track shrinks by roughly 60–85% depending on the bitrate you pick.

Under the hood, your browser's native FLAC decoder (part of the Web Audio API) unpacks each file to raw audio, and the LAME MP3 encoder — compiled to JavaScript and running in a background worker — re-encodes it at the constant bitrate you chose. Before encoding, the tool reads the FLAC's Vorbis comments and embedded artwork and writes them back as ID3v2.3 tags, so your library metadata survives the trip. On a modern laptop the encoder runs at about 30 times real-time speed.

Because every step happens on your device, there is nothing to upload, no queue to wait in, and no copy of your music anywhere but your own disk. We never see your files — and the tool keeps working if you go offline after the page loads.

Converting more than a handful of tracks? The batch FLAC to MP3 converter is the same engine in bulk mode — pick a whole album folder at once, queue up to 40 files, and take the finished MP3s away as a single ZIP. Worried about fidelity instead? The maximum-quality converter limits the bitrate picker to the transparent 256–320 kbps range and explains what actually costs you quality in a conversion. Tired of converters that gate features behind a login? The free FLAC to MP3 converter page spells out exactly what “free” means here: no signup, no file-size cap, no daily limit, and no paid tier. Want the quickest path? Change FLAC to MP3 is the same tool stripped down to three steps: drop, pick, download.

Weighing this tool against desktop apps like VLC or fre:ac? Our guide How to Convert FLAC to MP3 (4 Free Ways) compares all the free options and explains when each one makes sense, and the software comparison lines up seven converters side by side — including why they all sound the same.

Still deciding whether the lossless copy is worth keeping? FLAC vs MP3 compares the formats field by field, shows what MP3 actually discards, and walks through an ABX test you can run on your own ears in ten minutes.

Your music never leaves your device

Decoding, encoding, and tagging all run locally in your browser tab. No audio, file names, or metadata are transmitted, logged, or stored by FLAC to MP3 — disconnect from the internet after the page loads and the converter keeps working.

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.

  • 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.