unpkg.ai

unpkg.ai is an AI-powered service that creates and serves JavaScript ESM modules on demand using large language models.

unpkg.ai is an AI-powered ESM module generation service that creates JavaScript modules on demand using LLMs. It requires no signup, API keys, or authentication, allowing users to build dynamic plugins and practice top-down development with zero friction. The platform features permanent caching where generated modules are cached forever and served instantly via CDN-ready endpoints. Users can request modules through GET requests using custom prompt syntax for functions and objects. It provides interactive examples including currency formatters, tip calculators, password generators, and games.

unpkg.ai at a glance

Best for: Software engineer
Runs on: Web, API
Pricing: Free
Released: September 2025
Category: AI coding tool
Website: unpkg.ai

Key features

Zero friction without signup or API keys
Permanent caching of generated modules
Instant delivery of cached modules
CDN-ready with long cache headers
Prompt syntax for functions and objects
API endpoints for module generation

Use it for

Create dynamic plugins for software systems
Generate custom JavaScript modules on demand
Build applications using top-down development

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