Design Tools
CSS generators, color tools, and design utilities for web designers and developers.
About the Design Tools
NKable's CSS design tools generate the code for visual effects that are tedious to write by hand — gradients, layered box shadows, border radius, colour palettes and colour-blindness checks — each with a live preview and copyable CSS.
These CSS design tools cover the properties nobody can predict from the syntax alone. A four-stop conic gradient, a three-layer shadow, or an asymmetric border radius all have to be seen to be judged, and adjusting numbers in a stylesheet and reloading is a slow way to see them.
Every tool previews live and outputs CSS you can paste straight into a project. No build step, no framework assumption, no dependency — just the property values.
The colour tools go further than picking something that looks nice: harmony rules generate palettes that hold together, and the colour-blindness simulator shows how a palette reads to the roughly 8% of men with a colour vision deficiency. Everything runs in your browser.
How to use the Design Tools
- Pick a tool. Choose gradient, shadow, radius, palette or accessibility.
- Adjust the controls. Drag sliders and pick colours while the preview updates live.
- Check the preview. Confirm the effect looks right before taking the code.
- Copy the CSS. Paste the generated CSS into your stylesheet.
Design Tools features
- Linear, radial and conic gradient builder
- Multi-layer box shadow editor
- Per-corner border radius control
- Colour palette generation from harmony rules
- Colour blindness simulation
- Live preview with copyable CSS output
Frequently asked questions
Do these tools output real CSS?
Yes. Each generates standard CSS property values you can paste into any stylesheet, with no framework or build step required.
Is the preview accurate?
Yes. The preview is rendered by your own browser using the same CSS you copy, so what you see is what you get.
Do I need an account?
No. Every design tool is free to use with no signup, no limits and no watermark.
Are the colour tools accessibility aware?
Yes. The colour blindness simulator shows how a palette reads to people with common colour vision deficiencies.
Is anything uploaded?
No. All the design tools run entirely in your browser.