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camfx

camfx is free Linux virtual webcam middleware that adds live effects to camera output and sends the result to a V4L2 virtual camera using v4l2loopback and FF…

Place
#19 of 29
Score
5.9
camfx's website

What camfx is

camfx is free Linux virtual webcam middleware that adds live effects to camera output and sends the result to a V4L2 virtual camera using v4l2loopback and FFmpeg. Listed effects include background blur or replacement, brightness changes, skin smoothing, face-centered framing, and experimental eye warping. Users can manage effects with a command-line interface or GTK GUI, chain them, and switch them live through D-Bus. MediaPipe Tasks supplies segmentation and landmark models that are initialized when needed and cached locally. The listed prerequisites are FFmpeg, the v4l2loopback kernel module, Python 3.12, and a camera available as /dev/video*. Performance varies with webcam formats, USB bandwidth, and whether machine-learning effects are enabled; some webcams may not sustain 30 FPS at 1080p. Installation options include a Fedora-focused alpha RPM and setup in a Python virtual environment. The alpha release requires manual v4l2loopback configuration, while packaging automation and split packages are deferred. The software is provided under the MIT License.

Good

  • Free software under the MIT License
  • Includes command-line and GTK interfaces
  • Effects can be chained and switched live
  • Offers background replacement and framing effects

Watch out

  • Requires FFmpeg and v4l2loopback
  • Requires Python 3.12
  • Alpha RPM requires manual configuration
  • Some webcams may not sustain 30 FPS at 1080p

Who it suits

camfx suits Linux users who want to apply camera effects through a virtual webcam output. It is intended for users comfortable with its listed prerequisites and setup options.

Verdict

camfx provides a range of live camera effects and multiple ways to control them on Linux. Its prerequisites and alpha-release setup requirements are worth checking before choosing it.

Plans and prices

From camfx's own pricing page, checked 9 Oct 2026.

All about pricing
PlanPriceWhat it gives you
camfxFreeMIT-licensed software · Linux virtual webcam middleware

The facts

Each one read from camfx's own pages, with the date it was checked.

What it does

Audience
The project is for Linux users who want to apply camera effects through a virtual webcam output.checked 9 Oct 2026
Computer vision
MediaPipe Tasks provides segmentation and landmark models, which are initialized lazily and cached locally.checked 9 Oct 2026
Controls
The project includes a command-line interface and a GTK GUI for managing effects.checked 9 Oct 2026
Dependencies
The README lists FFmpeg, the v4l2loopback kernel module, Python 3.12, and a camera exposed as /dev/video* as prerequisites.checked 9 Oct 2026
Distribution
The project offers a Fedora-focused alpha RPM release, and its README also documents installation from a Python virtual environment.checked 9 Oct 2026
Effect control
Effects can be chained and switched live through D-Bus.checked 9 Oct 2026
Effects
Listed effects include background blur and replacement, brightness, skin smoothing, face-centered framing, and experimental eye warping.checked 9 Oct 2026
License
The repository provides the software under the MIT License.checked 9 Oct 2026
Output
It outputs to a V4L2 virtual camera using v4l2loopback and FFmpeg.checked 9 Oct 2026
Performance
Achievable frame rate depends on webcam formats, USB bandwidth, and whether machine-learning effects are enabled; some webcams cannot sustain 30 FPS at 1080p.checked 9 Oct 2026
Purpose
camfx is virtual webcam middleware for Linux that adds live effects to camera output.checked 9 Oct 2026
Release limitation
The alpha release requires users to configure v4l2loopback manually, and the release notes say packaging automation and split packages are deferred.checked 9 Oct 2026

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