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Convert between MP3, WAV, OGG, and more formats. Free online tool to transform audio in your browser. Supports audio, format.
Audio tools run entirely in your browser, supporting MP3, WAV, OGG and more. Bitrate and sample rate controls let you tailor output to your needs.
We found that most audio tools require uploading media to remote servers. Since privacy is our core principle, we built this tool to run entirely in your browser using Web Audio API.
Yes, completely free with no signup required.
Yes, it works on mobile browsers with touch support.
Audio
Most tools provide bitrate and sample rate options so you can maintain original quality or adjust as needed.
ToolPure supports MP3, WAV, AAC, FLAC, OGG, and M4A formats. You can convert between any combination of these formats with customizable bitrate (64-320 kbps) and sample rate (8-48 kHz).
Yes, you can trim audio to specific start and end times, and merge multiple audio files into a single track. Merging supports up to 50 files and preserves the original sample rate.
Once the page is loaded, all audio processing runs entirely in your browser using Web Audio API and ffmpeg.wasm. No internet connection is needed after the initial page load.
🔒 Privacy: All processing happens locally in your browser. Your files and data never leave your device — no upload, no server, no tracking.