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Unlimited M4A to FLACConverter for Free

Convert M4A to FLAC — Free & Unlimited.

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Archival Grade Audio

If your original tracks contain high-resolution audio, shifting to FLAC provides a robust, open-source way to archive them. It's the gold standard for audiophiles who want to ensure their library is preserved in a mathematically lossless format that is universally recognized by hi-fi equipment.

Your Files Stay Yours

Uploading gigabytes of audio to a random website is frustrating and insecure. Unlimited Convert operates purely client-side. The translation from one format to the other happens right inside your browser's memory sandbox. Your private recordings remain strictly on your hard drive.

Hardware-Accelerated Speeds

Transcoding audio can be resource-intensive, but our tool leverages your device's native processing capabilities. By cutting out network transit times entirely, you get your finished archival files significantly faster than traditional cloud-based alternatives.

Frequently Asked Questions

No. If your source file was compressed with lossy encoding, that audio data is permanently gone. Moving to FLAC simply prevents any future quality loss when saving or editing the file again.
Most modern Android phones, dedicated digital audio players, hi-fi network streamers, and desktop media players like VLC and Foobar2000 support it natively. Apple devices typically require third-party apps.
Running server farms to process large audio files is expensive. By having your browser do the processing work locally, our server costs are practically zero, allowing us to offer the tool for free.
Because you aren't uploading anything! The moment you select a file, your browser immediately begins reading and rewriting the data locally, skipping the network transfer phase entirely.
Yes. Free Lossless Audio Codec is an open format with royalty-free licensing. This makes it incredibly popular for long-term archiving, as you'll never be locked out by corporate patent disputes.