Color-blindness simulator
Render an image as someone with deuteranopia / protanopia / tritanopia would see it.
- Image
- Free to use
- Server processed
Add your file
Set your options
Run Color-Blindness Simulator
Processed on our servers. Uploaded over TLS and deleted an hour later — 24 hours if you are signed in.
Three steps
How to use Color-Blindness Simulator
- Step 01
Pick your input
Drag a single image/* into the upload area, or click to browse.
- Step 02
Configure & run
Adjust the options (type) and click Run. We process the file on our own infrastructure — no third-party APIs in the path.
- Step 03
Download the result
A single file is downloadable below the form.
Server-processed files are encrypted at rest with a per-tenant key and deleted an hour after upload — 24 hours if you are signed in. We do not use third-party processing APIs.
About color-blindness simulator
See how an image looks to someone with deuteranopia, protanopia, or tritanopia. It sits in the image shelf alongside 168 other image tools, needs no account, and keeps the same behaviour whether you open it here or call it through the REST API.
It takes any image. The work happens on our servers, and the upload is encrypted per file and deleted an hour later — 24 hours if you are signed in. The same operation is available programmatically at POST /v1/image/color-blindness-simulator.
Color-Blindness Simulator questions
Where does Color-Blindness Simulator process my file?
On our own servers. This tool needs more than a browser tab can provide, so the file is uploaded over TLS, processed on our infrastructure — no third-party processing APIs are in the path — and both the input and the result are deleted within an hour.
What files can I use with Color-Blindness Simulator?
Any image file your browser can read. The limit is 50 MB per file.
Can I run Color-Blindness Simulator on several files at once?
Yes. Color-Blindness Simulator takes one file at a time, so selecting several runs it once per file, one after another, and you get a result for each.
Do I need an account to use Color-Blindness Simulator?
No. Color-Blindness Simulator works without signing in, and that is not a trial — it is how the free tier works. An account only matters for things that need one to exist at all: larger server jobs against your quota, API keys, saved workflows and billing.
Can I run Color-Blindness Simulator from my own code?
Yes. Every tool on the site is reachable from the REST API with the same slug — `color-blindness-simulator` — and the same options as this page, so anything you can do here you can automate against your own files.