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Convertto

A CSSmatic alternative for visual CSS generators

People searching this way want to design a CSS surface visually and copy out the rule, rather than write the property by hand.

Convertto has a set of visual CSS generators that cover the same surface work: gradients, border radius, box shadow and repeating patterns, plus buttons, glassmorphism, neumorphism and loaders. Each one previews live as you drag a control and outputs CSS you can paste. They run entirely in the page, with nothing to install and no account.

Approach
Drag a control, see the result, copy the rule
Output
Plain CSS, ready to paste
Where it runs
In the page. Nothing is sent anywhere
Cost
Free, no sign-up

What you are looking for, and the tool that does it

The jobConvertto toolWhat it does
Gradient generatorCSS Gradient GeneratorBuilds linear, radial and conic gradients with multiple stops
Border radius generatorCSS Border Radius GeneratorSets each corner independently, including elliptical radii
Box shadow generatorCSS Box Shadow GeneratorControls offset, blur, spread and colour, and offers a layered two-shadow version
Noise and pattern texturesCSS Pattern & Texture GeneratorGenerates repeating background patterns and textures in pure CSS
Button stylingCSS Button GeneratorBuilds a complete button rule including hover, active and focus-visible states
Frosted glass panelsGlassmorphism CSS GeneratorCombines backdrop blur, translucency and border into one rule
Soft embossed surfacesNeumorphism GeneratorProduces the paired light and dark shadows that make the effect
Loading spinnersCSS Loader GeneratorBuilds a spinner, dots, bars or a pulse from pure CSS, keyframes included

Why a visual generator is worth the click

Most CSS is quicker to type than to configure. Four properties are the exception, because their values are not readable as numbers: background-image with a gradient, box-shadow, border-radius with four differing corners, and clip-path. In each case the gap between the value and the result is wide enough that a preview is genuinely faster than a reload, and that is what these generators are for.

Shadows read better in layers

A single large blurred shadow is the usual first attempt and it always looks slightly wrong, because real elevation produces both a tight contact shadow and a wide ambient one. Two stacked shadows, a small tight one and a larger soft one, read as height in a way one never does. The box shadow generator outputs the layered version alongside the single-shadow rule so you can compare them directly.

/* one shadow: flat */
box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);

/* two shadows: contact plus ambient */
box-shadow:
  0 1px 2px rgba(0, 0, 0, 0.10),
  0 8px 24px rgba(0, 0, 0, 0.12);

Gradients and the grey dead zone

A two-stop gradient between distant hues passes through a desaturated middle, because interpolating in sRGB cuts across the centre of the colour space. Adding an intermediate stop at a saturated colour pulls the ramp back out to the edge and removes the grey band. The gradient generator lets you add stops and see the effect immediately.

The rest of the set

Beyond the surface generators there are tools for flexbox, grid, clip paths, filters, transforms, easing curves and media queries. The CSS generators hub lists all of them.

Frequently asked questions

Do I need an account?

No. The generators run in the page with no sign-up and nothing to install.

Is the output plain CSS?

Yes. Each generator emits the rule as CSS you can paste into a stylesheet or a component, with no framework or class system assumed.

Can I make a noise or texture background?

Yes. The pattern generator builds repeating backgrounds using gradients, so there is no image file to host and the colours stay editable.

Why does my gradient look grey in the middle?

Because interpolating between two distant hues in sRGB passes through the desaturated centre of the colour space. Add a saturated stop in the middle of the ramp to pull it back out.

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