Free Voice Effects
Six studio-style voice effects in your browser — alien, chipmunk, deep droid, and more. Record or upload, audition, export WAV.
Try the Classic Robot effect
Record or upload a clip, then apply the selected effect and export it as WAV.
Your browser does not fully support the Web Audio API. Try Chrome, Edge, or Firefox for the voice changer.
Audio is processed locally and never uploaded.
One engine, six voices
Voice effects are the fastest shortcut to character in audio. A single line of dialogue becomes a different species with a warble, a different size with a pitch shift, or a different decade with a telephone band. Content creators reach for them when a video needs an anonymous interviewee, a game needs NPC variety, a prank call needs plausible deniability, or a music project needs a texture that no instrument makes. The catch with most online effect tools is the funnel: upload your audio to a server, wait in a queue, accept a watermark, or pay per export.
This page takes the opposite approach. Every preset here is a parameter set for the same local DSP engine — a ring modulator whose carrier frequency reshapes the harmonic spectrum, a playback-rate stage that shifts pitch and tempo together, and an LFO-driven chorus that adds width. Classic Robot runs a 50 Hz carrier at full strength for the archetypal metallic buzz. Deep Droid slows the source to 72% speed with a low 30 Hz carrier, producing something that sounds like it weighs two tons. Alien Visitor pushes the carrier up to 180 Hz with a fast chorus sweep, Chipmunk Bot speeds everything up, Telephone Line recreates the narrow buzz of a landline call, and Droid Chorus skips ring modulation entirely for a smooth synthetic crowd.
Because switching a preset only swaps numbers, not code, the switch is instant, and the effect you audition is exactly the effect you download. Audio stays on your device the whole time. Record straight into the page or upload an existing file, tap through the presets until one lands, compare against the original, and export a clean 16-bit WAV for your editor. Need the robot read of a script instead of a recording? The robot voice generator home page covers text to speech as well.
Frequently Asked Questions
▸What voice effects are available?
Six presets built on the same ring-modulation engine: Classic Robot (metallic 50 Hz), Deep Droid (slow and low), Alien Visitor (high warble), Chipmunk Bot (fast and squeaky), Telephone Line (buzzy band-limited), and Droid Chorus (wide synthetic chorus, no ring modulation).
▸Can I hear the effects before exporting?
Yes. After recording or uploading a clip, apply an effect and use the built-in player. A Compare original button switches between your source audio and the processed version so you can audition the effect precisely before downloading the WAV.
▸Are these voice effects really free with no watermark?
Yes. All effects are computed locally in your browser with the Web Audio API, so there is no render cost to pass on to you. The exported WAV is clean, full-quality 16-bit audio with no watermark and no length limit.