Color Blindness Simulator
Preview how your image looks to users with 8 color-vision deficiencies.
Color Blindness Simulator
How to use Color Blindness Simulator
Follow these steps — everything happens instantly in your browser.
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Step 1. Drop an image onto the zone.
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Step 2. Pick a color vision deficiency type (deuteranopia is the most common).
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Step 3. Click “Download simulated image” to save the result.
Why use this tool
Private by design
All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.
Instant
No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.
Free & unlimited
No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.
Works everywhere
Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.
Frequently asked questions
Everything you might want to know about color blindness simulator.
Image Filters
Apply grayscale, sepia, blur, brightness & more with live preview.
Color Palette from Image
Extract dominant colors from any image — copy HEX or export CSS.
Image Compressor
Shrink JPG, PNG & WebP files with a quality slider — private & instant.
Image Converter
Convert images between PNG, JPEG and WebP — no upload, no watermark.
Image Resizer
Resize images to exact pixel dimensions with optional aspect-ratio lock.
Rotate & Flip Image
Rotate by 90/180/270° and flip horizontally or vertically — live preview.
