Deno
FreeModern JavaScript runtime with built-in TypeScript support and security features.
What does this tool do?
Deno is a modern JavaScript runtime designed to address limitations of Node.js by providing a more secure, developer-friendly environment. Built from the ground up by Ryan Dahl (Node.js creator), it offers native TypeScript support, robust security features, and a streamlined development experience without complex configuration. Unlike traditional JavaScript runtimes, Deno focuses on web standards, provides built-in tooling, and emphasizes secure-by-default execution.
AI analysis from Feb 16, 2026
Key Features
- Zero-configuration TypeScript execution
- Built-in security permissions management
- First-class npm and Node.js package support
- Integrated dependency management without package.json
- Native ESM module support
- Cross-platform runtime compatibility
Use Cases
- 1Building modern web applications with TypeScript
- 2Creating serverless functions and edge computing projects
- 3Developing secure microservices and backend APIs
- 4Creating command-line tools and scripts
- 5Building cross-platform desktop and web applications
Pros & Cons
Advantages
- Native TypeScript support without additional compilation steps
- Enhanced security model with explicit permission system
- Modern ECMAScript feature support out of the box
Limitations
- Smaller ecosystem compared to Node.js
- Potential compatibility challenges with existing Node.js projects
- Steeper learning curve for developers used to traditional Node.js workflows
Pricing Details
Open-source runtime is free. Deno Deploy offers free tier with paid plans starting at $10/month for additional resources and features.
Who is this for?
Modern JavaScript developers, TypeScript enthusiasts, backend engineers focused on security and performance, startups and enterprises seeking a more secure runtime