What badge types does it detect?

The generator detects npm package info, Node engine version, TypeScript, frameworks (React, Next.js, Vue, Svelte, Angular, Express, etc.), testing tools (Jest, Vitest, Cypress, Playwright), linters (ESLint, Prettier, Biome), build tools (Vite, Webpack, esbuild, Turbo), and generates npm downloads and bundle size badges.

Can I customize the badge style?

Yes, you can choose from five shields.io styles (flat, flat-square, for-the-badge, plastic, social), set a custom color, select output format (Markdown, HTML, RST), and toggle individual badge categories on or off.

Does it work with private packages?

Yes. For private packages, it generates static version and license badges instead of npm-linked badges, and skips npm downloads and bundle size badges since those require a public npm package.

Package.json to README Badges

Auto-generate shields.io badges from your package.json. Detects your entire tech stack and creates ready-to-use badge markdown no server, no signup, completely free.

How It Works

Paste Your package.json

Paste your package.json into the input editor. The tool detects frameworks, testing tools, linters, build tools, and more.

Customize Options

Choose badge style (flat, square, badge), output format (Markdown, HTML, RST), custom colors, and toggle which badge categories to include.

Copy & Use

Your badges update instantly. Copy the generated markdown into your README.md or download it as a file.

Why Use This Tool

Auto-Detect Tech Stack

Automatically identifies React, Next.js, Vue, Angular, Express, TypeScript, and dozens more from your dependencies.

Shields.io Compatible

Generates standard shields.io badge URLs that work on GitHub, GitLab, Bitbucket, and any markdown renderer.

Multiple Output Formats

Get badges in Markdown, HTML, or reStructuredText format for any documentation platform.

Private Package Support

Works with private packages too generates static badges for version and license when npm badges are unavailable.

Badge Categories

npm Info

TypeScript

Frameworks

Testing

Linting

Build Tools

CI Status

Node Engine

Bundle Size

Downloads

FAQ

Is this badge generator free to use?

Yes, completely free with no signup, no limits, and no data sent to any server. Everything runs in your browser.

Is my package.json data sent to a server?

No. The badge generation happens entirely in your browser using JavaScript. Your package.json data never leaves your machine.

What frameworks and tools does it detect?

It detects React, Next.js, Vue, Svelte, Angular, Express, Fastify, Nuxt, Gatsby, Tailwind CSS, Jest, Vitest, Mocha, Cypress, Playwright, ESLint, Prettier, Biome, Webpack, Vite, esbuild, Turborepo, Rollup, and TypeScript.

Can I customize the badge appearance?

Yes. Choose from five shields.io styles, set a custom hex color, pick your output format, and toggle individual badge categories on or off.

Does it work with scoped npm packages?

Yes. Scoped packages like @scope/name are properly URL-encoded so all shields.io and npm badges resolve correctly.

Related Tools

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