Style Object Tool · CSS to JavaScript Converter 2026
Convert CSS rules to JavaScript style objects (camelCase) for React, Vue, or inline styles. Paste CSS, get formatted JS object instantly. Copy or download. 100% free.
How it works: Paste CSS → click Convert → get JavaScript style object (camelCase keys, string values). Copy or download as .js file.
🎯 Why Convert CSS to JavaScript Style Objects?
In modern front‑end frameworks like React, Vue, and Angular, inline styles are often written as JavaScript objects with camelCase property names (e.g., `backgroundColor` instead of `background-color`). This allows dynamic styling, scoped CSS, and better integration with component logic. However, manually converting existing CSS to JS objects is tedious and error‑prone, especially for large stylesheets. Our Style Object Tool automates the process: you paste CSS, and it extracts property‑value pairs, converts kebab‑case to camelCase, and outputs a clean JavaScript object. The tool also handles numeric values (keeping them as numbers when possible) and preserves color codes, shadows, and other complex values. The output is ready to use in React's `style` prop, Vue's `:style` binding, or any JavaScript‑powered styling system.
This tool is invaluable for developers migrating from traditional CSS to CSS-in-JS solutions (Styled Components, Emotion), or for quickly prototyping dynamic styles. It also helps learners understand the mapping between CSS and React inline styles. The conversion is purely client‑side: your CSS never leaves your browser, ensuring privacy. You can copy the generated object or download it as a `.js` file. The tool also includes a sample loader and clear buttons. 100% free, no signup, no watermarks.
📘 How to Use the Style Object Tool
- Paste CSS code – Enter any valid CSS rule (selector optional, the tool extracts declarations).
- Click "Convert to JS Object" – The parser extracts each property/value pair, converts property names to camelCase, and keeps values as strings (numbers are converted to numbers if they are numeric).
- Review the output – The JavaScript object appears in the right textarea, formatted with proper indentation.
- Copy or download – Use "Copy JS" to copy the object to clipboard, or "Download .js" to save as a JavaScript file.
- Load sample – Click "Load Sample" to try with a button styles example.
✨ Powerful Features
⚙️ How the Conversion Works Under the Hood
The tool uses a simple but effective parser: it first removes CSS comments, then finds all blocks between `{` and `}`. Inside each block, it splits by semicolons to get individual declarations. For each declaration (property: value), it trims whitespace, converts the property name from kebab‑case to camelCase (e.g., `border-radius` → `borderRadius`). The value is trimmed; if it consists only of digits (with optional decimal point), it's converted to a number; otherwise, it remains a string. The resulting key‑value pairs are collected into an object, which is then stringified with indentation (2 spaces). The final output is wrapped in `const styles = { ... };` for easy copying. The code is designed to handle most standard CSS properties, including vendor prefixes (e.g., `-webkit-transform` becomes `WebkitTransform`). Errors are reported in the status area.
🌟 Benefits for React and Vue Developers
Time‑saving: Convert entire stylesheets in seconds. Accuracy: Avoid manual camelCase typos. Learning: See how CSS maps to JavaScript objects. Dynamic styling: Use the generated object with React's `style` prop or Vue's `:style`. Maintainability: Keep styles as JS objects for component‑scoped logic. Free forever: No hidden costs.
❓ Frequently Asked Questions (FAQ)
1. What CSS properties are supported?
All standard CSS properties are supported, including vendor prefixes (converted to camelCase, e.g., `-webkit-transform` → `WebkitTransform`).
2. How are numeric values handled?
If a value consists only of digits (e.g., `16`, `24.5`) or ends with `px` (e.g., `16px`), the number is extracted. If it contains other characters (e.g., `#fff`, `solid`), it remains a string.
3. Does the tool work with CSS variables (custom properties)?
Yes, `var(--my-color)` will be kept as a string. However, CSS variables are not converted to camelCase; they remain as is.
4. Can I use the output in React Native?
Yes, React Native also uses camelCase style objects. However, some CSS properties (like `box-shadow`) are not supported in React Native – you may need to adapt.
5. Does it handle multiple selectors?
The tool extracts declarations from every block. It doesn't distinguish selectors – all properties are merged into a single object. For complex stylesheets, convert one component at a time.
6. How does it handle media queries?
Media queries are ignored because inline styles do not support them. Use CSS modules or styled components for responsive styles.
7. Is my CSS safe?
Absolutely. The tool runs entirely in your browser. No data is transmitted to any server.
8. How can I help improve this tool?
Use the star rating, like/dislike buttons, and share with fellow developers. Feedback helps us prioritize new features.
🔗 Related Developer Tools
💡 Pro tip: For React, use the generated object directly in a `style` attribute: `