This tool processes audio entirely on your device — no files are uploaded or transmitted. All pitch-shifting computation runs in your browser using your system's RAM and CPU.

Processing time depends on file length, sample rate, and your hardware. Large files (10 min+) or extreme pitch shifts may take longer and consume significant memory. If your browser tab becomes unresponsive during processing, wait — it will complete. For very large files, closing other browser tabs first is recommended.