100% free audio converter
Convert FLAC to MP3 free
A genuinely free FLAC to MP3 converter — no signup, no file-size limit, no daily quota, and no paid tier hiding behind the button. Your browser does the conversion locally at 128–320 kbps, keeps every tag and cover image, and never uploads a byte.
- No signup
- No upload
- No file-size limit
- No watermark
- No paid tier
How to convert FLAC to MP3 for free
Three steps, all in your browser — no software to install, no account to create.
Drop your FLAC files
Drag up to 20 .flac files onto the zone below, or click to browse. Nothing is uploaded — the page reads each file directly on your device.
Pick a bitrate
Choose 128, 192, 256, or 320 kbps. The default is 320 kbps — the highest quality MP3 allows and about 2.4 MB per minute. Conversion starts automatically and you can switch bitrate at any time.
Download your MP3s
Grab each file individually or take them all as a single ZIP. Tags, track numbers, and cover art from the original FLAC are already embedded — no extra step needed.
Why this converter is free (and stays free)
Most online converters follow the same business model: upload your file to their server, transcode it, send it back. Bandwidth and CPU cost real money, so they recoup it through signup walls, daily caps, file-size limits, and a paid tier that removes the restrictions. The free version is just a funnel.
This tool sidesteps that model entirely. Your browser's built-in FLAC decoder (part of the Web Audio API) unpacks each file, and the LAME MP3 encoder — compiled to JavaScript and running in a background worker — re-encodes it at the bitrate you chose. Nothing is transmitted. A 600 MB 24-bit album costs us nothing to convert because we never see it.
With no per-conversion cost there is no reason for per-conversion restrictions. No 5-file-per-day quota, no 100 MB file cap, no “upgrade to unlock 320 kbps.” The full converter — every bitrate, batch mode, metadata handling, ZIP downloads — is what you get, every time, for free.
What you get — no strings attached
| Price | Free — no signup, no watermark, no daily quota, no premium tier |
|---|---|
| Bitrates | 128 / 192 / 256 / 320 kbps constant, 320 kbps by default |
| Batch limit | 20 files per run, with a single ZIP download |
| File-size limit | None — nothing is uploaded, so there is no server-side cap |
| Metadata | Tags and full-resolution cover art copied into ID3v2.3 |
| Processing | 100% on your device — Web Audio API decoder + LAME encoder in JavaScript |
| Hi-res input | 24-bit and 88.2–192 kHz FLAC accepted; resampled to 44.1 or 48 kHz for MP3 |
| Speed | About 30× real time — a 4-minute track in roughly 5–15 seconds |
| Works offline | Yes, once the page has loaded |
| Account required | No — no login, no email, no registration |
Free converter FAQ
Is this FLAC to MP3 converter actually free?
Yes — no trial, no daily quota, no watermark, no premium tier. The converter runs entirely in your browser, so there are no server costs to recover. You can convert as many files as you want, as often as you want, at any bitrate.
Do I need to create an account or sign up?
No. The tool works the moment the page loads. There is no login, no email gate, and no account system at all. Close the tab and come back tomorrow — it works the same way.
Is there a file-size limit?
No. Upload-based converters cap file size because bandwidth costs them money — a 500 MB hi-res album is exactly what those caps are designed to block. Here the conversion runs on your own device, so a 600 MB 24-bit album converts just like a three-minute single. The only ceiling is your device's available memory.
Are my files uploaded anywhere?
No. Decoding, encoding, tagging, and ZIP packaging all happen inside your browser tab. No audio data, file names, or metadata are ever transmitted. You can disconnect from the internet after the page loads and the converter keeps working.
Why is it free when other converters charge?
Most paid converters run on servers that cost money per conversion: they upload your file, transcode it, and send it back. This tool skips all of that. Your browser's built-in FLAC decoder and the LAME MP3 encoder — compiled to JavaScript — do the work locally. No server cost means no reason to charge.
What is the catch?
There is none. The page is ad-supported, which covers hosting. You get the full converter — every bitrate, batch mode, metadata preservation, ZIP downloads — with no artificial limits, no upsells, and no tracking of what you convert.
Does the free version reduce quality or add a watermark?
There is no paid version to compare it to. Every conversion uses the LAME encoder at whichever constant bitrate you choose — the same encoder and the same output you would get from fre:ac, foobar2000, VLC, or ffmpeg. No watermark, no re-encoding at a lower bitrate behind your back.
How many files can I convert at once?
Up to 20 per batch on this page. When the batch finishes, clear it and add the next 20 — there is no daily cap. For larger batches, the batch converter handles 40 files per run with folder input and a single ZIP download.
Will my tags and cover 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 as ID3v2.3 tags, and embedded artwork is carried across at full resolution.
Need a different mode?
Converting a whole album? The batch converter takes a folder at a time, handles up to 40 files per run, and packages everything into a single ZIP — still free. Want the best possible fidelity? The maximum-quality converter locks the bitrate to 256–320 kbps and explains what actually costs you quality in a conversion.
Prefer desktop software? The guide How to Convert FLAC to MP3 (4 Free Ways) covers fre:ac, VLC, and the ffmpeg one-liner — all free, and all using the same LAME encoder under the hood.