Convert FLAC music tracks to portable MP3
FLAC preserves sound with zero loss, but the files are huge and many car stereos and phones cannot play them. Turn them into lightweight MP3s that work anywhere.
- Format
- Universal MP3
- Quality
- Up to 320 kbps
- Leaves your device
- Never
Which output should you pick?
Choose MP3 when
- You want to play music on phone, car stereo, or portable speaker.
- You need to save storage space while keeping great sound.
- You are sharing songs with friends or uploading to streaming tools.
Stay with FLAC when
- You are archiving master recordings for future studio work.
- You listen on high-end audiophile equipment in a quiet room.
- Disk space is plentiful and you refuse any lossy compression.
How it works
Select your FLAC track
The file is opened locally on your computer.
Select MP3 quality
Pick 192 kbps for everyday listening or 320 kbps for peak audio fidelity.
Convert
The lossless audio data is encoded into compact MP3 format.
The track is opened, not sent
Editing audio normally means uploading the file and hoping the service is trustworthy. Here your browser opens the track from your disk, works on it in place, and saves the result back. The audio never crosses the network.
- Opened from your disk by your browser — not sent anywhere first.
- Held in the tab while the tool works, then dropped.
- Saved to your device by your browser, not by a link to a server.
- Closing the tab clears the working copy completely.
- No account, so nothing is ever attached to an identity.
- No tracking of what you worked on or what was inside the file.
There is no queue, no render farm and no waiting room. The track is worked on in front of you and released the moment the tab closes. The how it works page covers what actually happens inside the tab, and our DevTools guide shows how to confirm 0 bytes are uploaded.
What people use it for
Making a track play everywhere
Some players only accept one container. Converting once removes the guesswork.
Sending a voice note that is too long
A ten-minute recording is a lot to ask someone to play. Trim it to the useful minute and it actually gets heard.
Fitting an episode inside a feed limit
Podcast hosts set a maximum size. Checking the result here saves a failed upload later.
Keeping a copy that will still open in ten years
A widely supported format is a safer long-term bet than a container only one app understands.
Formats & limits
What this tool accepts, what it produces, and what it will never ask you for.
- Input
- Lossless FLAC audio recordings
- Output
- MP3, WAV, M4A, FLAC or OGG
- Maximum file size
- Set by your device, not by a plan
- Files per run
- One at a time
- Sign-up required
- None
- Watermark
- Never added
- Works offline
- Yes, once the page has loaded
- Supported browsers
- Any current Chrome, Edge, Firefox or Safari
When something goes wrong
Corrupt files, and formats outside the list above, stop with a plain message rather than a spinner that never finishes. If a track plays in your music app it will normally open here.
The audio container is not one the browser can read. Convert it to MP3 or WAV first, then run it through again.
Why not an upload site
An upload-based audio editor sends your recording to a server and sends the result back. Removing that round trip removes the waiting, the caps and the copy of your file.
A typical upload site
This tool
Questions
How much space does converting FLAC to MP3 save?
A typical FLAC album takes 300 to 500 MB; converted to 320 kbps MP3 it takes roughly 80 to 100 MB, saving up to 80% space.
Will I hear a quality difference?
At 320 kbps, the MP3 stream is virtually indistinguishable from FLAC on standard headphones, car speakers, and mobile devices.
Are my songs uploaded anywhere?
No. The entire decoding and encoding process takes place in your browser memory. No data travels over the network.
Is there a file size limit?
No fixed limit is imposed by the tool. The practical ceiling is how much memory your device has free, because the whole job runs inside this browser tab.
Does it work without an internet connection?
Yes, once the page has loaded. Nothing is fetched while you work, so a dropped connection does not interrupt a run.
Do I need an account or an email address?
No. There is nothing to sign up for, and nothing is ever attached to an identity because no file leaves your device.