Noise Gator

At a glance

• Editor score
  7.8 / 10
• Pricing
  Free plan
• Best for
  Free Windows and Mac microphone cleanup
• Free plan
  Yes
• Paid from
  Free
• Real-time cancellation
  Yes
• Facts checked
  20 Sep 2026

• Where it wins

  • Supports RNNoise and DeepFilterNet denoise engines
  • Adds noise gate, EQ, high-pass filter, and automatic gain
  • Offers virtual-device routing, hot-plug support, and headless mode

• Where it doesn't

  • Supports Windows and macOS, with no other platforms listed
  • Virtual audio routing requires VB-Cable or BlackHole installation
  • Focused on microphone input rather than broader audio sources

Our verdict on Noise Gator

Noise Gator is a lightweight open-source desktop application for cleaning microphone audio in real time on Windows and macOS. It captures microphone input, processes it through selectable noise-suppression engines, and sends the result to a virtual audio device. That makes it suitable for people who want cleaner voice input in applications such as Discord, Teams, or Zoom without relying on a commercial SaaS service. The system-tray design, settings window, device selection, and configuration persistence support regular desktop use, while headless command-line operation gives advanced users another way to run it.

Its main strength is the combination of two denoise engines—RNNoise and DeepFilterNet—with additional controls for different recording conditions. A high-pass filter, noise gate, EQ, and automatic gain let users shape the processed microphone signal beyond basic background-noise reduction. The application also supports Bluetooth headsets and device hot-plugging, which is useful when audio hardware changes during a session. This broader control set gives Noise Gator more flexibility than a single-purpose mute or filter utility, while keeping its focus on microphone cleanup.

Noise Gator fits users comfortable installing and selecting a virtual audio path. VB-Cable or BlackHole can provide the virtual device that other applications use as a microphone, but that requirement adds an extra setup step compared with tools that expose a processed input directly. Windows and macOS coverage is clear, while users on other operating systems or those seeking broader audio-source processing should look elsewhere. Choose Noise Gator for free, open-source microphone cleanup with configurable processing and command-line support; choose an alternative if you need wider platform coverage or a simpler all-in-one installation.

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Noise Gator pricing

Noise Gator fact sheet

Alternatives to Noise Gator

• KleervoxA broad freemium option for cleaner meetings, streams, recordings, and calls.9.4
• neepA cross-platform choice for bidirectional noise removal with local processing.9.2
• NVIDIA BroadcastA free Windows toolkit for noise removal, audio routing, and meeting or streaming effects.9.0

See all Noise Gator alternatives →

Featured on iTechGuides

Noise Gator is listed in our AI Noise Cancellation Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update