Convert WAV to FLAC
Free online WAV to FLAC converter. Batch-convert files with the quality you choose. No uploads, no sign-up.
How to use
Drop one or more WAV files onto the page.
Pick the FLAC quality you want.
Convert and download each file, or all of them at once.
About this tool
This converter decodes your WAV files and re-encodes them as FLAC on your own device using WebCodecs and WebAssembly encoders. Tags such as title, artist and cover art are carried over where the target format supports them.
All processing happens locally in your browser, ensuring complete privacy for your recordings and music.
Frequently asked questions
Are my files uploaded?
No. AudioCharger processes everything inside your browser. Your files never leave your device and nothing is stored on a server.
Is it free?
Yes. Every AudioCharger tool is free, with no sign-up, no watermark and no file limits beyond your device's memory.
Can I convert many files at once?
Yes. Add as many files as you like; they are converted one after another and can be downloaded individually or together.