Audio to FLAC
Convert audio to lossless FLAC.
Add audio
MP3, WAV, M4A, OGG, FLAC, OPUS — or a video to pull audio from.
Choose an output
Convert audio to lossless FLAC.
Fine-tune
Optional — sensible defaults are already set.
About Audio to FLAC
FLAC compresses audio without discarding anything, so a decoded FLAC is bit-for-bit identical to its source. It typically shrinks WAV files to around half to two-thirds of their size and supports tags, which makes it the standard choice for archiving music and recordings.
When it helps
- Archiving WAV recordings, CD rips or field recordings in a smaller lossless format
- Saving space on a music library without giving up quality
- Feeding a lossless file to a hi-fi player or streamer that supports FLAC
Tips
- FLAC only makes sense from a lossless source like WAV or AIFF. Converting MP3 or AAC to FLAC produces a much bigger file with exactly the same lossy sound.
- The bitrate slider doesn't apply: FLAC's size depends on how compressible the music is, not on a setting.
- FLAC is supported on Android, Windows, macOS and recent iPhones, but some older car stereos and players still need MP3.
Good to know
Quick answers about audio to flac in your browser.
Sound quality is identical because both are lossless. FLAC files are smaller and can carry metadata like artist and album; WAV is slightly more universally supported by editing software.
No. FLAC preserves whatever it is given. An MP3 converted to FLAC still sounds like the MP3, just in a larger file.
Yes. There is no sign-up, no watermark and no limit on how many files you process.
No. Files are read and processed locally in your browser, so they never leave your device.
Related tools
Part of the Audio Converter collection.