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DenoBackend

A secure JavaScript/TypeScript runtime built on V8 with built-in tooling.

Popularity
72%
Market Share
2.8%
Community
75%
Performance
85%
Founded: 2018
Creator: Ryan Dahl
Learning: Moderate
Technologies
Deno

Overview

Deno is a secure runtime for JavaScript and TypeScript that addresses many design regrets of Node.js. It uses V8 and is built in Rust, featuring secure defaults, modern APIs, and excellent developer experience with built-in tools.

72%
Popularity
2.8%
Market Share
75%
Community
85%
Performance

Getting started

Prerequisites

Before getting started with Deno, ensure you have basic knowledge of backend development.

Install Deno, run scripts directly from URLs, explore permissions system, and use built-in tools like test runner and formatter.

Key features

TypeScript Support
Secure by Default
Built-in Formatter
ES Modules
Top-Level Await
Modern APIs

Use cases

1

Web Servers

Ideal for building scalable and efficient web servers solutions.

2

CLI Tools

Ideal for building scalable and efficient cli tools solutions.

3

Scripting

Ideal for building scalable and efficient scripting solutions.

4

Microservices

Ideal for building scalable and efficient microservices solutions.

5

Modern Web Apps

Ideal for building scalable and efficient modern web apps solutions.

Pros and cons

Advantages

  • Secure by default
  • TypeScript out-of-the-box
  • No centralized package manager
  • Built-in developer tools
  • Modern ECMAScript support
  • Simplified deployment

Disadvantages

  • Smaller ecosystem than Node.js
  • Less mature for production
  • Breaking API changes
  • Limited legacy compatibility

Who's using Deno

Deno is trusted by industry leaders and innovative companies worldwide.

Netlify
Slack
Discord
Algolia
Supabase
Fly.io
Deno Deploy
Pipedream

Ecosystem

Deno ecosystem includes Fresh framework, Deno Deploy, standard library, and growing collection of ES module-compatible packages.

Best practices

Do's

  • Follow official documentation and guidelines
  • Implement proper error handling and logging
  • Use version control and maintain clean code
  • Write comprehensive tests for your applications
  • Keep dependencies updated and secure

Don'ts

  • Don't ignore security best practices
  • Don't skip testing and code reviews
  • Don't hardcode sensitive information
  • Don't neglect performance optimization
  • Don't use deprecated or outdated features

Use import maps for dependencies, implement proper permissions, leverage built-in tools, follow modern ECMAScript patterns.

Get expert consultation

Connect with our Deno specialists to discuss your project requirements