Audio

Audio converter

Convert audio files between MP3, WAV, OGG, AAC, and FLAC entirely in your browser. No upload required.

Drop your audio file here, or

MP3 · WAV · OGG · AAC · FLAC · M4A · Max 100 MB

Output format

Quality

100% private. All processing happens locally in your browser — no files or data are ever sent to a server.

How to use Audio converter

01 Drag and drop your audio file onto the upload area, or click to browse
02 Choose your settings (format, quality, timestamps, etc.)
03 Click the action button — the engine loads on first use, then processes your file
04 Click Download to save the result to your device

Frequently asked questions

Common questions about Audio converter.

Is Audio converter free to use?

Yes, Audio converter is completely free. No account, subscription, or payment is ever required — just open the page and start using it.

Does Audio converter upload my data to a server?

No. Audio converter runs entirely in your web browser using client-side JavaScript. Your files, text, and data never leave your device, making it 100% private.

Can I use Audio converter on my phone or tablet?

Yes. Audio converter is fully responsive and works on all modern smartphones, tablets, and desktop browsers without installing any app.

Are my audio files kept private?

Yes. Audio converter processes all audio entirely in your browser using ffmpeg.wasm (a WebAssembly build of FFmpeg) or the Web Audio API. Your files are never uploaded to any server.

Why does it take a moment to start the first time?

The audio engine uses ffmpeg.wasm, a ~30MB WebAssembly library that loads on demand — only when you click the action button. Once loaded, subsequent operations are instant. It is not loaded on page arrival to protect page speed.

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Audio merger

Combine two audio files sequentially or with a crossfade transition. Browser-based, no upload.

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About Audio converter

Audio format conversion changes a file from one encoding to another — for example, from MP3 (lossy, widely compatible) to WAV (uncompressed, highest fidelity) or FLAC (lossless compression). Different platforms require specific formats: professional video editors need WAV or FLAC, streaming platforms prefer MP3 or AAC, and web apps work best with OGG or M4A. The Audio Converter processes all conversions entirely in your browser using ffmpeg.wasm — a WebAssembly build of the industry-standard FFmpeg library. Your files are never uploaded to any server.