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Filter Studio

A free lightweight tool that manages screen brightness and color filters.

Download

Demonstration
Demonstration
Demonstration

Overview

A background-friendly Windows application designed to reduce eye strain, adjust monitor hardware brightness, and apply custom 12 color filters across single or multi-monitor setups. It operates efficiently using native Windows APIs without heavy system overhead.

Made using AutoHotKey and compiled using AHK2Exe.

Features

  1. Has 12 pre-configured display color tints to choose from.
  2. A slider (0–100%) that adjusts how strongly the color filter tints your screen by modifying system GDI Gamma Ramps.
  3. Directly adjusts physical monitor brightness (10–100%) using WMI (for laptops) and DDC/CI for external monitors.
  4. Multi-monitor is supported for gamma ramps and dimming.
  5. Automated scheduling for different presets in specified hours.
  6. Highly customizable and intentionally supports Quality-Of-Life day-to-day operations.

VERSION 1.1 Additional Features

  1. Includes a screen-time tracker and general recommendations based on performance and metrics.
  2. Additional automated ergonomics and health reminders such as live user monitoring.
  3. AC/DC automated power detection and preset switching.
  4. Live monitoring and screen tracking only takes up 5 mb of memory at most and will not scrape any personal information/data.

Known incompatibilities:

  1. DisplayPort, HDMI adapters, and older monitors that do not have DDC/CI commands will fail to respond to brightness changes.
  2. Monitors, virtual displays, or graphics drivers that do not support hardware gamma ramps will disable color filtering.
  3. Running Filter Studio alongside other gamma or color management tools (such as f.lux, Windows Night Light, Duet Display, or GPU control panel color overrides) will cause conflict. They will constantly overwrite each other’s gamma ramps, leading to screen flickering or incorrect colors.

Workflow

  1. Select a quick preset or adjust your brightness, color, and strength sliders manually.
  2. You can set the preferred time when to apply the filters and the app will apply it automatically.
  3. Close the window to minimize the app directly to the system tray.
  4. Press Ctrl + Shift + F at any time to toggle the interface.
  5. Alternatively, you can check the app minimized in your hidden icons.
  6. You can access the metrics of screen-time through the screen-statistics menu.

Downloads

Check the releases.

License & Distribution

Filter Studio is released as Freeware.

  • You are free to download, use, and share the compiled .exe executable for personal use.
  • Source code for v1.0 remains open-sourced and accessible in this repository as open reference.
  • v1.1+ binaries are closed-source freeware. See the LICENSE file for full terms.

References

AutoHotkey v2 AHK2Exe