Free Ceaser (Matthew Lein) Alternative
Ceaser is an interactive CSS easing animation tool created by Matthew Lein that lets you build custom easing curves. It includes many of the Penner Easing Equations and follows a simple workflow: choose an easing type, test it, customize the curve, and copy the generated code. The tool is free, touch-device friendly, and includes a comprehensive library of easing functions. Fixie's CSS Easing Function Visualizer offers a similar feature set with an updated interface and side-by-side comparison mode.
Try CSS Easing Function Visualizer Free →CSS Easing Function Visualizer vs Ceaser (Matthew Lein)
| Feature | Fixie CSS Easing Function Visualizer | Ceaser (Matthew Lein) |
|---|---|---|
| Price | Free forever | Free |
| Signup Required | No | No |
| Penner Easing Equations | Yes | Yes (comprehensive library) |
| Custom Curve Editor | Yes (draggable Bezier) | Yes (adjustable handles) |
| Live Animation Preview | Yes (multiple simultaneous) | Yes (single preview) |
| Comparison Mode | Yes (side-by-side curves) | No |
| Touch Device Support | Yes | Yes |
| Ads | None | None |
Why Choose Fixie?
Ceaser is a well-established CSS easing tool that has served the web development community since the early days of CSS3 transitions. It provides a visual interface for adjusting Bezier curve handles and includes a comprehensive library of Penner Easing Equations — presets like easeInQuad, easeOutCubic, easeInOutBack, and more. The workflow is straightforward: choose an easing, test it, adjust if needed, then copy code.
The main limitation is comparison: Ceaser shows one easing at a time. You have to switch between presets sequentially to compare how they differ, which slows down the selection process when you're evaluating multiple options.
Fixie's CSS Easing Function Visualizer includes the same Penner Easing Equations and custom curve editing with an added comparison mode. You can see multiple easing curves simultaneously with synchronized animation previews, making it faster to pick the right timing function. Both tools support touch devices, are completely free, and generate identical CSS output. Ceaser is a proven, straightforward tool. Fixie adds comparison features for a faster evaluation workflow.
How to Use CSS Easing Function Visualizer
Step 1: Open the Easing Visualizer
Go to fixie.tools/easing — instant access, no signup required.
Step 2: Browse Easing Presets
Select from Penner Easing Equations (easeInQuad, easeOutCubic, easeInOutBack, etc.) or start with a custom curve.
Step 3: Compare Curves Side by Side
Enable comparison mode to see multiple easing curves with synchronized animations for faster decision-making.
Step 4: Customize and Export
Drag control points to fine-tune the timing, then copy the cubic-bezier() CSS code.