Online File Converter

FLAC Converter

Convert FLAC files online for free. Upload your file, choose a target format, and download the converted file when it is ready.

Or drop files here. Max file size 1GB.

Choose a file before converting.

Convert From

Files you can turn into FLAC

3G2 to FLAC 3GP to FLAC AAC to FLAC AC3 to FLAC AIF to FLAC AIFC to FLAC AIFF to FLAC AMR to FLAC AU to FLAC AVI to FLAC CAF to FLAC CAVS to FLAC DV to FLAC DVR to FLAC FLV to FLAC M2TS to FLAC M4A to FLAC M4B to FLAC M4V to FLAC MKV to FLAC MOD to FLAC MOV to FLAC MP3 to FLAC MP4 to FLAC MPEG to FLAC MPG to FLAC MTS to FLAC MXF to FLAC OGG to FLAC OGV to FLAC RM to FLAC RMVB to FLAC SFARK to FLAC SWF to FLAC TS to FLAC VOB to FLAC VOC to FLAC WAV to FLAC WEBA to FLAC WEBM to FLAC WMA to FLAC WMV to FLAC WTV to FLAC

Lossless audio archiving

Convert WAV to FLAC for lossless storage

Create a lossless FLAC copy of PCM WAV audio, with practical guidance about storage variability, source audio properties, metadata, and playback compatibility.

FLAC CUE Splitter

FLAC CUE Splitter

Split one FLAC album and its CUE sheet into complete, tagged FLAC tracks without lossy conversion.

FLAC format guide

What to know before converting FLAC

FLAC stores decoded audio losslessly while compressing PCM samples and supporting tags and artwork.

What this converter actually supports

Published audio routes run through the deployed FFmpeg toolchain. The converter probes the source stream before conversion, and files without a decodable audio stream cannot produce an audio result.

Convert FLAC to MP3 or AAC for smaller portable copies, or to WAV for a broadly editable PCM file.

The public upload limit is 1 GB. Convertr does not reduce dimensions, duration, resolution, or output quality merely to manage worker load.

Quality and format limits

WAV, AIFF, and FLAC are appropriate when decoded sample fidelity matters. MP3, AAC, Opus, WMA, and Vorbis are lossy; choose bitrate for the destination and do not expect a higher number to restore source detail.

Lossy outputs discard detail; converting a lossy source to FLAC only prevents further loss and does not restore quality.

Published FLAC inputs

These links come from the active conversion catalog, not from a generic list of possible formats.

3G2 to FLAC 3GP to FLAC AAC to FLAC AC3 to FLAC AIF to FLAC AIFC to FLAC AIFF to FLAC AMR to FLAC

Published FLAC outputs

Choose one of these implemented routes; a listed extension is not a promise that every codec variant will decode.

FLAC to AAC FLAC to M4A FLAC to MP3 FLAC to OGG FLAC to WAV

If a FLAC conversion fails

Check that the file opens in its original application, is not encrypted or DRM-protected, and really matches its extension. A damaged header, unsupported internal codec, missing linked asset, or mislabeled file can fail even when FLAC is generally supported. Try a different published target only when it fits your goal; changing the extension by hand does not convert the file.