Is Cubic Bezier Builder free?

Yes, Cubic Bezier Builder is completely free to use with no signup required.

Does Cubic Bezier Builder send my data to a server?

No. Cubic Bezier Builder runs entirely in your browser using client-side JavaScript. Your data never leaves your device.

Build cubic-bezier transition curves with drag-to-shape handles and live linear animation comparison widgets.

DevTab

Never leaves your browser

Design custom spline timing curves with drag handles and transition comparison.

Transition Comparison Preview

Linear Transition

Custom Curve Timing

CSS Cubic Bezier Rule

61 B1 linesCoordinates: P1(0.25, 0.10) | P2(0.25, 1.00)