Build Smooth CSS Transitions with Custom Easing Generate CSS transitions with customizable property, duration, easing, and hover effects.

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CSS Transition Generator

Generate CSS transitions with customizable property, duration, easing, and hover effects.

Set transition properties

Choose the CSS property to transition, duration, timing function, and delay.

Define hover state

Set the hover background color, scale, border radius, and rotation.

Test and copy

Hover over the preview element to test the transition, then copy the CSS.

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What Is CSS Transition Generator?

The CSS Transition Generator creates smooth state transitions between CSS property values. Unlike animations that can run automatically, transitions require a trigger—typically a hover, focus, or active state. This tool lets you configure every transition parameter: which property to target, how long the transition takes, which easing function to use, and how long to delay before starting. It includes standard easing functions plus popular cubic-bezier presets like ease-in-back, ease-out-back, and ease-in-out-back for bouncy effects. The hover state section lets you define what changes on hover—background color, scale, border radius, and rotation—so you can see and test the transition in real-time by hovering over the preview element.

Why Use CSS Transition Generator?

Complete transition controls with property targeting
Built-in cubic-bezier presets for bouncy and custom easing
Interactive hover preview for real-time testing
Generates both base and hover state CSS code

Common Use Cases

Button Hover Effects

Create smooth color and scale transitions for interactive buttons.

Card Interactions

Add lift and shadow transitions to card hover states.

Menu Animations

Smooth transitions for dropdown menus and navigation elements.

Form Focus States

Animate border and shadow changes on form input focus.

Technical Guide

The CSS transition property is shorthand for transition-property, transition-duration, transition-timing-function, and transition-delay. The transition-property can target specific properties or use all for everything. Duration and delay use seconds or milliseconds. The timing function defines the speed curve: linear is constant speed, ease starts slow then speeds up then slows down, ease-in starts slow, ease-out ends slow. Custom curves use the cubic-bezier(x1, y1, x2, y2) function where the four values define control points. Values outside 0-1 for y create overshoot/bounce effects. For performance, transition only transform and opacity when possible. Multiple transitions can be defined with comma-separated values for different properties with different timings. Transitions are triggered by any property change, including JavaScript-set values and class additions.

Tips & Best Practices

1
Target specific properties instead of all for better performance
2
Use cubic-bezier values >1 for y-coordinates to create bounce effects
3
Keep transitions under 300ms for UI interactions for snappy feel
4
Add transition to the base state, not the hover state

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Frequently Asked Questions

Q What is the difference between transition and animation?

Transitions need a trigger and animate between two states. Animations can run automatically with multiple stages.

Q Can I transition multiple properties?

Yes, use comma-separated values or transition: all to affect all properties.

Q Which easing function should I use?

ease-out is best for entrances, ease-in for exits, ease-in-out for state changes, and linear for continuous motion.

Q Why is my transition not working?

Ensure the property is animatable, the transition is on the base state (not hover), and you are changing a specific CSS value.

Q Can all CSS properties be transitioned?

No, only properties with intermediate values can transition. Properties like display switch instantly.

About This Tool

CSS Transition Generator is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.