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Cubic-bezier editor

CSS & UI generators

Create cubic-bezier timing functions and preview curve values.

Updated

Cubic-bezier editor

Create cubic-bezier timing functions and preview curve values.

Input format: Line 1=x1, Line 2=y1, Line 3=x2, Line 4=y2

Output

Quick start

How to use cubic-bezier-editor

Enter input and view computed output.

  1. Step 1
    Enter input

    Paste or type your data in the input box.

  2. Step 2
    Compute

    The tool processes input instantly in your browser.

  3. Step 3
    Use output

    Copy output and continue your workflow.

In-depth guide

Cubic-bezier editor guide

Create cubic-bezier timing functions and preview curve values. This tool is designed for fast local processing and practical day-to-day use.

Quick start

Paste input, review output instantly, then copy it for your workflow.

Input tips

Use one value per line for structured inputs. Common separators are handled gracefully.

Privacy

Processing runs in your browser tab for the MVP workflow, with no mandatory upload step.

When to use it vs alternatives

Use this tool for quick browser-based work when you need an answer or output immediately. Use a dedicated application or automated workflow when you need bulk processing, approvals, or repeatable production rules.

Common pitfalls

  • Check the result before replacing the original input.
  • Watch for unit, format, encoding, and browser memory limits on large inputs.
  • Keep a copy of important source material until the output is verified.

Frequently asked questions

What is a cubic-bezier timing function?

It defines how an animation accelerates over time using two control points, letting you craft custom easing beyond ease, ease-in and ease-out.

What do the four numbers mean?

They are the x,y coordinates of the two control handles: cubic-bezier(x1, y1, x2, y2). The x values must stay between 0 and 1.

Can the curve overshoot?

Yes. y values above 1 or below 0 make the animation overshoot and settle back, which creates a springy, bouncy feel.

How do I copy the result?

Drag the handles to shape the curve, then copy the generated cubic-bezier() value into your transition or animation.

When should I use a custom curve over presets?

Use presets for quick standard motion. Reach for a custom bezier when you need a specific brand feel or precise control over the acceleration profile.

Is any data uploaded?

No. The curve is computed locally in your browser.

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