Browser edition: files stay on your device. Up to 100 MB total and 10 minutes. First use downloads a 32 MB engine. Some formats depend on codec support. Public-link downloading is not ready on this free deployment.
Convert FLAC to MP3
Convert FLAC to MP3 online for free. Real conversion, batch support, no sign-up.
How to convert FLAC to MP3
- Add your fileDrop it on the page, choose it from your device, or paste it with Ctrl+V.
- ConvertAdjust settings if you like, then press the button. You'll see live progress.
- Browser processing uses original files on your device. Public-link downloading is unavailable.
What happens to your file
FLAC files are common for archiving CDs, hi-fi listening, music collections, but not every app or device opens them. MP3 is ideal for music libraries, podcasts, car stereos, any device. Spool converts FLAC to MP3 with FFmpeg — real decoding and encoding, not a renamed file extension.
Lossless → lossy. FLAC keeps every sample; MP3 discards sounds that are hard to hear to save space. Choose 320 kbps for critical listening, 192 kbps for everyday use, or 128 kbps for voice.
FLAC is lossless; MP3 is not. For music you care about, choose 320 kbps. For spoken word or background listening, 128–192 kbps is plenty and saves around 80% of the space.
Settings
- Audio bitrate — 320 kbps · best, 256 kbps, 192 kbps · standard, 128 kbps · small, 96 kbps, 64 kbps · voice
- Channels — Original, Mono
- Sample rate — Original, 48 kHz, 44.1 kHz, 22 kHz
FLAC vs MP3
| FLAC | MP3 | |
|---|---|---|
| Full name | Free Lossless Audio Codec | MPEG-1 Audio Layer III |
| Created by | Xiph.Org Foundation, 2001 | Fraunhofer IIS / MPEG, 1993 |
| Type | Lossless audio | Lossy audio |
| Typical contents | FLAC (lossless) | MP3 (lossy) |
| Best for | archiving CDs, hi-fi listening, music collections | music libraries, podcasts, car stereos, any device |
| Strength | Bit-perfect, lossless quality | Universal compatibility |
| Weakness | Several times larger than MP3 | Lossy: some detail is discarded |
About FLAC
- Type
- Free Lossless Audio Codec
- Contains
- FLAC (lossless)
- Use
- archiving CDs, hi-fi listening, music collections
About MP3
- Type
- MPEG-1 Audio Layer III
- Contains
- MP3 (lossy)
- Use
- music libraries, podcasts, car stereos, any device
FAQ
What bitrate should I choose for MP3?
192 kbps is a good default for music. Choose 320 kbps for the best quality, 128 kbps for podcasts and voice, 64 kbps for small voice notes.
Can I convert several FLAC files at once?
Yes. Drop up to 10 files at a time — each one is converted in parallel and you can download them individually or all at once.
Is there a file size limit?
Convert and edit files on your device. The browser edition accepts up to 100 MB total, media up to 10 minutes and video up to 4K. Codec availability and device memory can limit individual jobs.
Is this FLAC to MP3 converter free and safe?
Yes. There are no pop-ups, redirects or fake download buttons, and no software to install. Files are transferred over HTTPS, processed in isolated job folders and deleted automatically.