OpticQuiz Corrector re-colours your whole display so colours that collapse together for colour-vision deficiency become distinguishable. It applies to everything on screen - games, PDFs, video, and other applications - not only web pages, and runs from the system tray.
Three correction modes (deuteranopia, protanopia, tritanopia) plus a balanced mode for people who do not know their type. The transform is a published, open-access method (Machado 2009 simulation with CIEDE2000, DOI 10.5281/zenodo.21310578).
The matrices used here are derived specifically for the colour space Windows applies them in, which differs from the browser. Reusing the browser matrices measured worse, so this ships its own.
This is an accessibility aid, not a cure or a medical device. It makes colours easier to tell apart; it does not restore colour vision.
Technical details
Publisher
OpticQuiz
Author
Vince Gonzalez
Version
1.1.0
Release date
2026-08-05
License
MIT
Installer type
portable
Architecture
x64
Package ID
OpticQuiz.Corrector
Requirements
Windows 10 or later
Install OpticQuiz Corrector from the command line
Install with Windows Package Manager
winget install --id=OpticQuiz.Corrector -e
Update to the latest version
winget upgrade --id=OpticQuiz.Corrector -e
Uninstall
winget uninstall --id=OpticQuiz.Corrector -e
OpticQuiz Corrector adds this command to the command line: opticquizcorrector.
Yes. OpticQuiz Corrector is free and open-source software released under the MIT license.
What is the latest version of OpticQuiz Corrector?
The latest version is 1.1.0, released on Aug 5, 2026.
Is it safe to download OpticQuiz Corrector?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 213a4d015aa13e697a36ea71bb9da3dddf1275a280cefa0a0afdd99ad8220df1.
Which Windows versions does OpticQuiz Corrector support?
OpticQuiz Corrector requires Windows 10 or later and is available for 64-bit (x64) systems.
How do I uninstall OpticQuiz Corrector?
Open Settings › Apps › Installed apps, find OpticQuiz Corrector and select Uninstall. From the command line, run winget uninstall --id=OpticQuiz.Corrector -e.
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