workflowstacks
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Inferno: Fast UI Builder

Build modern UIs with Inferno, a React-like JavaScript library. Ideal for startup founders needing high-performance interfaces.
16,456 stars640 forksJavaScriptGuide quality 9/10Updated 8/19/2026100% free · open source
What it does

Inferno is a fast, React-like JavaScript library for building modern user interfaces with a small footprint and high performance.

When to use it
  • •When you need to build a complex UI component that requires high performance and optimization
  • •When you want to leverage a React-like API without the overhead of a full React application
  • •When you're working on a project that requires a small bundle size and fast rendering
Ready-to-paste prompt
Render a to-do list app: `render(<TodoList todos={['Item 1', 'Item 2', 'Item 3']} />, root);`
Heads up: Inferno requires a compatible version of JavaScript (ES6+), and using older browsers may require additional polyfills or transpilation
Saves to your device
Use with Claude
New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install
Claude Code
mkdir -p ~/.claude/skills/inferno && curl -fsSL https://workflowstacks.com/api/skills/inferno/claude-skill -o ~/.claude/skills/inferno/SKILL.md
Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)
claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Inferno: Fast UI Builder works
Codeflow
Free to inspect

Inferno: Fast UI Builder is a large JavaScript project (~20k lines across 171 code files, plus 175 test files). Setup is light: installs like a normal app. Reading the code is optional. Last commit this month, MIT license, has a test suite.

Size
Large codebase
~20k lines · 171 code files · ~3 h to skim
Setup
One-command install
Installs like a normal app. Reading the code is optional.
Runs on
Node.js
No API keys detected
JavaScript 100%
Where to start reading
  1. 1
    README.md
    Start here — what it does and how to install it
  2. 2
    package.json
    Dependencies and the commands it exposes
  3. 3
    packages/inferno/index.cjs
    Inside packages/inferno/ — the main logic begins here
  4. 4
    demo/inferno-router-demo/.babelrc
    A worked example — copy this to get going
What's in each folder
packages/inferno/Core code — the actual logic73 files
docs/Documentation53 files
demo/Examples you can copy19 files
documentation/Documentation5 files
packages/inferno-compat/Package46 files
packages/inferno-router/Package43 files
packages/inferno-create-element/Package27 files
packages/inferno-server/Package27 files
READMEHas testsDocumentedCI checksExamples includedMIT licenseUpdated this month
Quick Actions
Details
Creator
infernojs
Language
JavaScript
Category
ai-agent
Published
2/1/2015

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