Cubic Bezier Easing Lab
Plot CSS cubic-bezier timing curves and inspect eased progress without automatically playing an animation.
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How to use Cubic Bezier Easing Lab
Choose two control points and compare input time with output progress on an original curve drawing. A keyboard-operable progress slider solves the curve for time; output can overshoot while the two horizontal control coordinates stay within CSS bounds.
- Choose the bounded settings and select Run tool.
- Inspect the native preview and generated CSS. Smaller screens can scroll inside a fixed-size layout preview.
- Copy or download the CSS, then adapt selectors and test real content in your own project.
Good to know
- Horizontal coordinates must be 0 through 1. This interface limits vertical coordinates to −2 through 3; CSS itself permits wider finite vertical coordinates.
- The preview covers input progress 0 through 1 only. No extrapolation, step easing or automatic animation is performed. The exported transition still needs start/end states.
- No HTML or CSS input is executed. Only known properties, enumerated choices and bounded numbers reach this preview. No data leaves this tab.
Common questions
Is the generated CSS ready for every production page?
Choose a transition property and actual start/end styles in your project. Test motion preferences and accessibility; overshoot may be unsuitable for some properties.
Does the preview upload information or import a framework?
No. It uses native browser rendering with original local demonstration content. It makes no external requests, saves no history and requires no framework.
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