Best Free Online Developer Tools to Use in 2026
A practical, opinionated list of the best free online developer tools worth using in 2026, organized by category so you can find what you need fast.
Aug 08, 2026
Animation
Preview
tailwind.config.js code and HTML usage.How do I add the animation to my project?
Copy the generated tailwind.config.js code into your Tailwind config's theme.extend.animation and theme.extend.keyframes sections. Then use the class animate-{name} in your HTML.
Can I create my own keyframes?
Yes. Select "Custom Keyframes" from the animation type dropdown, then enter your own @keyframes CSS in the text area and give it a name.
What Tailwind versions are supported?
The generated config works with Tailwind CSS v3 and v4. The animate- utility classes and keyframes configuration are compatible across both versions.
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