Free Audio tools

HoRNet Tools is a collection of 100% free online utilities built for producers, mixers, and audio engineers. From tap tempo and metronome to timing calculators, frequency and note converters, dB/voltage conversions, and RC filter design helpers, everything is designed to be quick, clear, and practicalβ€”so you can get the numbers you need in seconds. No install, no signup: just free tools that help you work faster and make better decisions.

RC Filter Calculator (1st Order)

All Tools

πŸ“€ Bit Depth & Dynamic Range πŸ‘† BPM Tapper 🎸 Chord Key Analyzer πŸ“‰ Compressor Settings Calculator ⏱️ Delay Calculator 🎼 Frequency to Note 🎚️ Gain Reduction Target πŸ“ Headroom Calculator 〰️ LFO Rate Calculator πŸ“ Linear / Voltage to dB 🎀 Metronome 🎡 Note Length to Samples 🎹 Note to Frequency πŸ”Š Pan Law Calculator πŸ“‘ Phase Correlation Guide πŸ”„ Sample Rate Converter πŸ“Š Sample to Milliseconds ⏱️ Tempo to Milliseconds