Free Online Audio Converter: Convert MP3, WAV, FLAC Without Uploading
Converting audio files between different formats is a common task — whether you need to compress a WAV file to MP3 for sharing, convert to FLAC for lossless archiving, or prepare audio for a specific device or platform. In this guide, we'll show you how to convert audio files online for free, with no uploads and no privacy concerns.
Why Convert Audio Formats?
- MP3 — Universal compatibility. Plays on every device and platform. Good balance of quality and file size.
- WAV — Uncompressed, lossless quality. Ideal for editing and professional use. Large file size.
- FLAC — Lossless compression. Half the size of WAV with identical quality. Great for archiving.
- OGG — Open-source format with good compression. Used in gaming and open-source applications.
- AAC — Apple's preferred format. Better quality than MP3 at the same bitrate.
How to Convert Audio Using AudioKit
- Open the Audio Converter — Go to our Audio Converter page.
- Upload your file — Drag and drop or select any audio file (MP3, WAV, FLAC, OGG, AAC, M4A).
- Choose output format — Select WAV, MP3, FLAC, OGG, or AAC as your target format.
- Convert — Click convert. The conversion happens entirely in your browser using FFmpeg compiled to WebAssembly.
- Download — Save your converted file. Your original file never left your device.
Which Format Should You Choose?
- For everyday listening — MP3 at 192-320 kbps. Small files, great compatibility.
- For editing — WAV. Uncompressed, no quality loss during editing.
- For archiving — FLAC. Lossless compression saves space without sacrificing quality.
- For Apple devices — AAC. Better quality per bit than MP3.
- For open-source projects — OGG Vorbis. Patent-free and widely supported.
Privacy & Security
Unlike most online converters that upload your files to a server, AudioKit processes everything locally in your browser using FFmpeg.wasm. Your audio files never leave your device. There are no servers, no upload queues, and no file size limits imposed by a backend. The only limit is your device's available memory.
Try it yourself
Use our free online tool — no sign-up, no uploads, works in your browser.
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