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Advanced accessibility tool to simulate various types of color vision deficiencies in real-time.
About this tool
Advanced accessibility tool to simulate various types of color vision deficiencies in real-time.
Color Blindness Simulator is a free accessibility tool that runs entirely in your browser — nothing to install, no account to create, and your data never leaves your device. Open the page, add your input, and get a clean, copy-ready result in seconds.
Open Color Blindness Simulator on AltFTool — it loads instantly in your browser.
Upload or drag in the file you want to work with.
Adjust the settings and preview the result.
Download the finished file to your device.
Process images, audio, video, and documents directly in your browser — files never leave your device.
See the result before you export, so the final file is exactly what you expect.
Download output that's ready for your website, presentation, or client hand-off.
Yes — Color Blindness Simulator is completely free on AltFTool, with no signup, no trial limits, and no hidden costs.
Yes. Color Blindness Simulator runs in your browser, so what you enter or upload stays on your device instead of being sent to a server.
Advanced accessibility tool to simulate various types of color vision deficiencies in real-time. It's built for quick, everyday accessibility tasks with results you can copy or download straight away.
Yes — Color Blindness Simulator works in any modern browser, on desktop, tablet, and mobile, with the same features everywhere.