CSS Transition Generator

The CSS Transition Generator is a free browser-based tool that helps you create CSS transition properties visually. Instead of writing transition declarations by hand and refreshing the page to test them, this tool provides sliders for duration and delay, dropdown selectors for properties and timing functions, and a live preview element that demonstrates the transition on hover — all in real time.

CSS transitions are one of the most effective ways to add polish and responsiveness to a user interface. They smoothly animate changes between property values, making UI interactions feel natural. The transition shorthand property accepts four values: the property to animate, the duration, the timing function (easing curve), and an optional delay. This tool generates both the shorthand syntax and the equivalent longhand properties (transition-property, transition-duration, transition-timing-function, transition-delay), so you can use whichever format your project requires.

You can add multiple transition entries to animate different properties independently — for example, a fast opacity fade combined with a slower transform scale. The tool includes common timing function presets like ease, linear, ease-in-out, and also supports custom cubic-bezier() values for fine-tuned easing curves. If you need more advanced animation control with keyframes, check out the CSS Animation Generator. For visual shadow effects that pair well with transitions, try the Box Shadow Generator. And if you are working with layout-related transitions, the CSS Layout Generator can help you build the underlying Flexbox or Grid structure.

Built-in presets — Fade In, Slide Up, Scale, Color Change, and Button Hover — let you start with a common pattern and customize from there. All processing happens entirely in your browser. No data is sent to any server, so your CSS code stays private and you can use the tool offline after the page loads.

1. Click a Preset button (Fade In, Slide Up, Scale, Color Change, or Button Hover) to load a common transition pattern, or start with the default.
2. Select the CSS property to animate from the dropdown (e.g., opacity, transform, background-color, all).
3. Adjust the Duration slider (0–5s, 0.1s precision) to set how long the transition takes.
4. Choose a Timing Function from the dropdown. Select "cubic-bezier" and enter custom values (e.g., 0.68, -0.55, 0.27, 1.55) for a custom easing curve.
5. Adjust the Delay slider (0–5s) to set a delay before the transition starts.
6. Click Add Property to add additional transition entries for multi-property transitions.
7. Hover over the Live Preview box to see the transition in action. Copy the generated shorthand or longhand CSS from the output panels using the Copy button or Ctrl+Shift+C.