Free utilities for React and modern frontend stacks (Vite, Next.js, CRA). Convert, generate, and validate — all in the browser with no signup required.
Paste any JSON and instantly get TypeScript interfaces or types. Handles nested objects, arrays, and optional fields.
Convert raw SVG markup into a clean React JSX component with proper camelCase props and optional TypeScript support.
Paste plain CSS and get the equivalent Tailwind CSS utility classes. Handles colors, spacing, flex, grid, and more.
Test ECMAScript regex the same way the browser and Node do — ideal for form validation, parsers, and `String.prototype.match` in React apps.
Check foreground/background color pairs against WCAG AA and AAA accessibility standards. Get a pass/fail instantly.
Encode strings, JSON payloads, or small assets to Base64 and decode them back — common for APIs, data URLs, and embedding in components.
Paste malformed JSON and get it prettified, validated, and error-highlighted. Minify or sort keys before pasting into TypeScript types or mock `fetch` handlers.
Enter any npm package name and see its minified + gzipped bundle size before adding it to your project.
Fill in title, description, images, and URLs — get ready-to-paste `<meta>` tags for Open Graph, Twitter Cards, and basic SEO in React apps (Helmet, Next.js Metadata API, or plain HTML).
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