Generate white, pink or brown noise for testing speakers, masking distractions or sound design, with WAV export.. Noise Generator is a free online tool from the ToolsRift Audio Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
Pick white, pink or brown noise, set the volume and press Play for continuous playback. To keep a copy, set a duration and press Export WAV.
White noise holds equal energy at every frequency and sounds bright and hissy. Pink noise falls by 3 dB per octave and sounds balanced, close to rainfall. Brown noise falls faster still and sounds deep, like distant surf.
Most people find pink or brown noise easier to tolerate for long periods because they are less harsh in the treble, while white noise masks sudden sounds more aggressively. Try each at low volume and keep whichever fades into the background fastest.
Its energy per octave is constant, which matches how measurement and hearing are organised, so a flat-sounding system reproduces pink noise evenly across the range. White noise looks and sounds treble-heavy in the same test.