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HomeConvertConvert to FLAC

Convert to FLAC

Convert any file to Free Lossless Audio Codec format — free, fast, and private

Audio
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or drag and drop files here

Max file size: 2GB

Your files are processed locally in your browser. Nothing is uploaded to any server.

About FLAC Format

Free Lossless Audio Codec (.flac)

FLAC (Free Lossless Audio Codec) is an open-source audio format that provides lossless compression — reducing file sizes by 50-70% compared to WAV while preserving 100% of the original audio data. FLAC was created by Josh Coalson in 2001 and has become the gold standard for lossless music archiving. It supports sample rates up to 655,350 Hz, bit depths up to 32-bit, and up to 8 channels. FLAC includes extensive metadata support (Vorbis comments), embedded album art, and CUE sheet integration. The format is supported by most music players, streaming services (Tidal, Qobuz, Amazon Music HD), and audiophile hardware. FLAC decoding is computationally lightweight, making it suitable for portable devices. For audiophiles, FLAC represents the optimal balance between file size and perfect audio quality — significantly smaller than WAV but with zero compromise in sound reproduction.

Convert to FLAC from any format

Choose a source format below to convert to Free Lossless Audio Codec

MP3FLACWAVFLACAACFLACOGGFLACWMAFLACM4AFLACAIFFFLACAIFFLACOPUSFLACAMRFLACAPEFLACAUFLACMIDFLACMIDIFLACAC3FLACDTSFLACWVFLACCAFFLACRAFLACVOCFLAC

Frequently Asked Questions

How do I convert files to FLAC?
Simply upload your file using the converter above, select FLAC as the output format, and click convert. The conversion happens instantly in your browser — no uploads needed.
What file formats can be converted to FLAC?
You can convert 20+ formats to FLAC, including MP3, WAV, AAC, OGG, WMA and more. Browse the full list of supported source formats above.
Is converting to FLAC free?
Yes, Convert999 is 100% free with no limits. Convert as many files to FLAC as you need — no registration, no watermarks, no hidden fees.
Is my data safe when converting to FLAC?
Absolutely. All conversions happen locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

Explore FLAC

FLAC Converter

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FLAC Format

About Free Lossless Audio Codec

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