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Convert FLAC to MP3

Turn your FLAC files into MP3 — free, fast and right in your browser.

Runs locally — nothing is uploaded

Drop FLAC files here — or click to browse

Files are converted in your browser and never uploaded.

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This tool converts FLAC files to MP3 right in your browser. Drop the file, pick a bitrate, download — the recording is decoded and re-encoded on your device and never uploaded anywhere. The result is a finished MP3 file, no watermark and no signup.

What is FLAC?

FLAC (Free Lossless Audio Codec) packs audio without discarding a single sample — decoding gives back bit-identical PCM, typically from 50–70% of the original size. It is the standard for archives, CD rips and hi-res downloads, and the IETF published the format as RFC 9639 in 2024. The price is size: a FLAC album stays several times larger than the same album as MP3, and support on car radios and older portable players is patchy.

What is MP3?

MP3 (MPEG-1/2 Audio Layer III) is the lossy audio format that made digital music portable. It was standardised in 1993 as part of ISO/IEC 11172-3 and plays on practically every phone, browser, car radio and cheap MP3 stick of the last 25 years. At the common 192 kbit/s one minute of stereo audio needs about 1.44 MB. Its last patents ran out in 2017, when Fraunhofer IIS ended the mp3 licensing programme — which is why free MP3 encoders are everywhere today.

Why convert FLAC to MP3?

FLAC is the archive copy, MP3 the travel copy. For a phone, a car stereo or an older player short on storage or FLAC support, MP3 is the format that simply plays everywhere.

How much space does MP3 save over FLAC?

FLAC packs audio losslessly: decoding returns bit-identical PCM, typically from 50 to 70% of the raw size. The IETF published the format as RFC 9639 in 2024. In practice: a 60-minute album takes roughly 380 MB as FLAC and about 86 MB as MP3 at 192 kbit/s — just under a quarter.

What are the limits?

The lossless advantage of FLAC is gone for good; an MP3 cannot be upgraded back to FLAC later. Keep the FLAC files as your archive and use the MP3 as the copy you carry around. The upside: because FLAC itself is lossless, the audio passes exactly one lossy stage — as good as MP3 gets at the bitrate you choose.

How to convert

1. Drop your FLAC file(s) into the area or click to browse. 2. The target format MP3 is fixed; for MP3 you also pick the bitrate (128, 192 or 320 kbit/s). 3. Click Convert and download the file — multiple files come as a ZIP.

Frequently asked questions

Is converting FLAC to MP3 free?

Yes, completely free and without signup. There are no watermarks and no file-size limits beyond what your browser can handle.

Are my files uploaded?

No. The conversion runs entirely in your browser — your FLAC file never leaves your device and is not sent to any server.

Do I lose quality converting FLAC to MP3?

Yes — MP3 is lossy and removes signal for good. Since FLAC is lossless, there is exactly one such stage, which is the best possible case. Speech is fine at 128 kbit/s, music usually gets 192 to 320 kbit/s. Keep the original as your archive.

Can I convert several files at once?

Yes. Just drop multiple files into the area — they are converted together and you can download them as a ZIP.

How long may my file be?

Up to about 30 minutes. For converting, the audio has to be fully decoded in memory — one stereo minute at 44.1 kHz takes roughly 21 MB there, so 30 minutes is already about 635 MB. Split longer recordings first.

Are title, artist and cover art preserved?

No. The file is decoded to raw audio and written anew, which drops ID3 tags and embedded cover art. Add the details afterwards in your player or a tag editor.