Online File Converter

FLAC コンバーター

無料でオンラインで FLAC ファイルを変換します. ファイルのアップロード、ターゲットフォーマットを選択し、完成したときに変換されたファイルをダウンロードします。

またはここにファイルをドロップしてください。最大ファイルサイズは1GBです。

変換するファイルを選択してください。

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.

Published FLAC outputs

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

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.