# CSS cubic Bezier editor

> Preview easing curves and export timing functions.

[Open tool](https://www.toolcabana.com/su/css-cubic-bezier-editor) · [Design and CSS](https://www.toolcabana.com/su/category/design-and-css)

Tool ID: css-cubic-bezier-editor. Requested language: su. Description language: en. Complete guide translation: no; untranslated sections use English.

## Overview (en)

CSS cubic Bezier editor builds a cubic-bezier() timing function from two control points and animates a ball with it so you can see the easing. The x values range from 0 to 1, the y values from -3 to 3 for overshoot or anticipation, and the preview duration from 0.1 to 10 seconds. Download the result as a transition-timing-function rule in easing.css.

## Supported tasks (en)

Preview easing curves and export timing functions.

## Steps (en)

1. Enter the requested values in the settings panel.
2. Adjust the basic settings, then open Advanced mode for export and fine-tuning options. Custom settings stay active when the panel is closed.
3. Run css cubic bezier editor, review the output, then use the available copy or download controls.

## Settings

- Control x1 (en; key: x1; type: number); minimum: 0; maximum: 1
- Control y1 (en; key: y1; type: number); minimum: -3; maximum: 3
- Control x2 (en; key: x2; type: number); minimum: 0; maximum: 1
- Control y2 (en; key: y2; type: number); minimum: -3; maximum: 3
- Preview duration (seconds) (en; key: seconds; type: number); minimum: 0.1; maximum: 10

## Limitations (en)

Images use the existing 32-megapixel canvas bound. Up to 100 source images are allowed where supported. Pasted HTML is bounded to 200,000 characters; Mermaid diagrams to 20,000 characters and 300 lines. SVG and PNG generation require a browser.

## Privacy and connections (en)

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

## Questions (en)

### Why are the x values limited to 0 to 1 in cubic-bezier?

CSS requires both x coordinates to stay between 0 and 1 so time always moves forward; values outside that range make the function invalid. The y values can go beyond that range, and this editor accepts -3 to 3.

### How do I make a bounce or overshoot easing curve?

Set y2 above 1, for example 1.5, so the motion passes the end point before settling, or set y1 below 0 to pull back before starting. The ball preview loops back and forth so you can judge the effect.

### Does the easing preview respect reduced motion settings?

Yes. When your system requests reduced motion, the preview animation is turned off. The cubic-bezier value is still generated and downloadable; change the setting temporarily if you need to watch the curve in motion.

### Where is my input processed?

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

### What are the input limits?

Images use the existing 32-megapixel canvas bound. Up to 100 source images are allowed where supported. Pasted HTML is bounded to 200,000 characters; Mermaid diagrams to 20,000 characters and 300 lines. SVG and PNG generation require a browser.

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