FLAC – Free Lossless Audio Codec
FLAC compresses audio without any loss of quality, typically to about half the size of WAV. It is popular for music collections.
More FLAC conversionsDrop your FLAC files here
or click to choose FLAC files · up to 95MB each
Convert FLAC to…
Convert to FLAC from…
Audio
Video
- MP4 to FLAC
- M4V to FLAC
- MOV to FLAC
- MKV to FLAC
- WEBM to FLAC
- AVI to FLAC
- FLV to FLAC
- WMV to FLAC
- MPEG to FLAC
- MPG to FLAC
- MOD to FLAC
- VOB to FLAC
- 3GP to FLAC
- 3GPP to FLAC
- 3G2 to FLAC
- OGV to FLAC
- TS to FLAC
- MTS to FLAC
- M2TS to FLAC
- MXF to FLAC
- DV to FLAC
- RM to FLAC
- RMVB to FLAC
- SWF to FLAC
- WTV to FLAC
- CAVS to FLAC soon
- DVR to FLAC soon
Frequently asked questions
Is it really free?
Yes. There is no sign-up and no watermark. To keep the service available for everyone there is a 95MB limit per file and a cap on how many files one connection can process in a short period.
Are my files stored?
Your upload is used only to make the converted file. Images are processed in memory; other files are written to a private temporary folder that is deleted as soon as the conversion finishes. Nothing is kept after the result has been sent back.
Will quality drop?
For images, a little, by design: the image is re-encoded at the Quality you choose (default 75%). Audio and video are re-encoded with high-quality settings; documents keep their text and layout as far as the target format allows. Converting never restores detail that is already missing from the original.
How this works: your file is uploaded over HTTPS and converted on this server with open-source engines (libvips for images, FFmpeg for audio and video, LibreOffice and Pandoc for documents, Calibre for ebooks, Ghostscript and Inkscape for PDF and vector files). Images are processed in memory; other files use a private temporary folder that is deleted as soon as the conversion finishes.