Color Blindness Simulator
Use Color Blindness Simulator on AboveTool for image resize, crop, filters, palettes, OCR, and more — private canvas processing, no signup.
Color Blindness Simulator
simulates common color-vision deficiency views
Drop your image here
or click to browse — processed locally
No images added yet.
Preview
Result preview
Details
use it to check UI contrast accessibility
About Color Blindness Simulator
Color Blindness Simulator is simulates common color-vision deficiency views. Applies CVD transformation matrices to pixels. Use it to check UI contrast accessibility. Color Blindness Simulator runs free in your browser at abovetool.com — no signup required.
How to use
- Upload an image (or paste Base64 / pick a color for text-only modes).
- Adjust the tool-specific options such as size, filter, or palette settings.
- Click Run to preview, then copy or download the result — all in your browser.
Features
- Mode-specific controls for resize, crop, filters, palettes, and more
- Canvas processing stays on your device
- ZIP packs for favicons, icons, and grid tiles when needed
- OCR via Tesseract.js for image-to-text tools
Frequently asked questions
Is Color Blindness Simulator free on AboveTool?
Yes. Color Blindness Simulator is free to use on abovetool.com with no account required.
Are my files uploaded to a server?
Most tools on AboveTool process files locally in your browser. Your content stays on your device.
Who is this Image tool for?
Anyone who needs quick Utilities tasks without installing desktop software — students, developers, designers, and office teams.