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Free Streamlabs Voice Changer

Get a changed voice into Streamlabs Desktop as its own mixer channel, with no audio driver or plugin. Free, no sign-up.

Real-Time Voice Changer: change your voice live

Your browser will ask for microphone access when you click.

Set it up in Streamlabs

  1. Pick your voice in Chrome

    Choose a voice in the Facecam popup, or press Use this voice in calls on any voice page.

  2. Send the mic from vdo.ninja

    In Chrome, open vdo.ninja → Add your Camera to OBS. Under Audio Source(s), tick “Facecam Virtual Mic” and untick your real microphone. Press Start and copy the view link.

  3. Add a Browser Source in Streamlabs

    In Streamlabs Desktop's Sources panel, click “+”, choose Browser Source and paste the view link as the URL.

  4. Route its audio to the mixer

    In the source's properties, tick Control Audio via Streamlabs Desktop. The voice now has its own fader.

  5. Mute your old mic

    Mute the Mic/Aux channel in the mixer so viewers don't hear your normal voice as well.

Our test recording

  • VDO.Ninja's Add your Camera to OBS page in Chrome with Facecam Virtual Mic ticked under Audio Source(s): the step that carries your changed voice into Streamlabs Desktop
    Our screenshot, 2026-10-04: vdo.ninja in Chromium with the Facecam extension. The preview is Chromium's built-in test camera, and the other inputs are its test devices.

If it doesn't work

ProblemFix
The Browser Source has no faderControl Audio via Streamlabs Desktop isn't ticked in its properties.
Viewers hear two voicesYour real mic is still live in the mixer. Mute it.
The voice stops when I switch scenesPut the Browser Source in every scene you go live with, or keep its scene loaded.
vdo.ninja only lists my real micReload vdo.ninja in Chrome with Facecam on. It has to be your Chrome, not a browser dock inside Streamlabs.

Streamlabs' mic list vs a Browser Source

Mic/Auxiliary DeviceBrowser Source with the view link
Shows Facecam Virtual MicNoCarries it from Chrome
Own mixer faderYesYes, with Control Audio via Streamlabs Desktop
Filters like Noise GateYesYes, on the source
Extra delayNoneA little, from the browser hop

Because the voice arrives as an ordinary audio source, Streamlabs' own audio filters still apply. Keep noise suppression light: heavy suppression can eat robot, echo or whisper effects.

More about Streamlabs

Character streams in one link

The same vdo.ninja page can send Facecam Virtual Camera as the video source, so one Browser Source carries your avatar, PNGTuber or face swap together with the changed voice. That keeps picture and voice in sync and leaves one thing to manage in Streamlabs.

Sources

  • VDO.Ninja: getting started (add your camera to OBS) — docs.vdo.ninja/getting-started (checked 2026-10-03)
  • VDO.Ninja: share audio with OBS (Control audio via OBS) — docs.vdo.ninja/guides/share-obs-audio-with-vdo-ninja (checked 2026-10-03)
  • OBS: browser source — obsproject.com/kb/browser-source (checked 2026-10-03)
  • Streamlabs: add a Browser Source (Sources panel → “+” → Browser Source) — support.streamlabs.com, “How to Locate and Use Streamlabs Widget URLs” (checked 2026-10-04)
  • Streamlabs: Control Audio via Streamlabs Desktop on a browser source — support.streamlabs.com/hc/en-us/articles/360043743994 (checked 2026-10-04)

Questions

Does Streamlabs have a built-in voice changer?

Streamlabs' help doesn't describe one. This route adds Facecam's voices without installing anything into Streamlabs.

Is it free?

Yes. The voice changer runs on your computer, and VDO.Ninja is a free web tool.

Does it work with Streamlabs on Mac?

The Browser Source and its audio option are part of Streamlabs Desktop; the Chrome side works on Mac, Windows and Linux.

Can I change voices mid-stream?

Yes. Pick another voice in the Facecam popup; the link keeps sending.

Other platforms

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