Audio Tools

Creepy Sound Effect Maker

Design unsettling tones from scratch: oscillator, pitch sweep, wobble, echo and distortion, then export a WAV.

Runs in your browser. Files you open stay on your device and are never uploaded.

Audio source

Uploads and recordings are processed in your browser. They are never sent to CreepyHQ and are gone when you close the page.

Sound presets

Waveform
Sweep

Effects

Time and pitch
Tone
Space
Noise

How to use it

  1. 1. Pick a waveform and set the start and end frequency.
  2. 2. Add modulation (wobble), echo and distortion; set the duration.
  3. 3. Press preview; try a preset if you want a starting point.
  4. 4. Download the sound as WAV.

Build a sound from its parts

Many classic horror sounds are simple synthesis: a sine tone sliding slowly downwards, a square wave wobbling at a few beats per second, a tone fed back through echo until it smears into a drone. This maker exposes those few controls directly, so you can design an alarm from a derelict ship, a theremin-like wail or a low warning pulse.

Every setting is applied with the Web Audio API and rendered offline, so the exported WAV matches exactly what you previewed. Sounds you make here are yours to use in games, films and podcasts.

Questions

What do the waveforms sound like?

Sine is pure and ghostly, triangle softer, square hollow and electronic, and sawtooth harsh and buzzy.

How long can a sound be?

Up to 20 seconds.

Can I use the sounds commercially?

Yes. They are generated by your settings, with no third-party recordings involved.