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Roll your own JavaScript runtime

A walk-through of creating a CLI that executes JavaScript files.

Deno 1.24 Release Notes

Deno 1.24 improves performance of transpiling and type-checking, adds unhandledrejection and beforeunload events, adds import.meta.resolve() API, and more

2022-07-18 incident update

Post-mortem report for the Deploy and Subhosting outage on July 18th

July 13th Utah Outage Update

Post-mortem report for the outage on July 13th and 14th 2022

wasmbuild - Using Rust in Deno and Web Apps

An easier way to build Rust for Deno and the Web.

Fresh 1.0

Fresh is a new full stack web framework for Deno. By default, Fresh web pages send zero JavaScript to the client.

Deno raises $21M

Series A led by Sequoia Capital

Deno 1.23 Release Notes

Deno 1.23 changes default type-checking behavior, ships with TypeScript 4.7, updates "deno task", and more

May 30 incident update

Post-mortem report for the 1 hour service outage on March 30th 2022

Deno Deploy Beta 4

Introducing a dashboard re-design, more regions, and billing.

Deno 1.22 Release Notes

Deno 1.22 changes default type-checking behavior, removes Deno.emit() API, adds Response.json() API, adds Deno namespace to workers by default, and more

Announcing the Web-interoperable Runtimes Community Group

Deno partners with Cloudflare and others on runtime interoperability through web standards.

How to setup a blog with Hugo and Deno Deploy

Set up and deploy a blog to the edge in minutes.

Deno 1.21 Release Notes

Deno 1.21 has improvements to testing facilities, the REPL, adds deno check, improves the language server, adds a new subprocess API, and more

Netlify Edge Functions on Deno Deploy

Introducing Netlify Edge Functions built on Deno Deploy.

A Whole Website in a Single JavaScript File

Explanation and making of a website in a single JavaScript file

Supabase Functions on Deno Deploy

Supabase developers can now deploy global edge functions on Deno Deploy.

Deno 1.20 Release Notes

Deno 1.20 increases performance, auto-compresses http responses, adds 'deno task', adds 'deno bench', allows import maps in deno.json, and more

How to use Google Analytics in Deno Deploy

An example of how to use server-side Google Analytics in Deno

How to publish Deno modules to NPM

dnt and oak - making code work across Deno and Node.js

Deno 1.19 Release Notes

Deno 1.19 improves our web streams integration, introduces a `deno vendor` subcommand, and adds many other new features.

Static Files on Deno Deploy

Deno Deploy runs Deno programs at the edge, now with support for static files.

A list of every web API in Deno

Have you ever wondered how web compatible Deno is? In this blog post I explain every single web API available in Deno.

Deno in 2021

Retrospect of what happened in 2021 and what's coming in 2022

Deno 1.18 Release Notes

Deno 1.18 marks the finalization of the Web Cryptography API, and adds, stabilizes, and improves many features.

January 4th incident update

Post-mortem report for the 40 minute service outage on on 4th January 2022.

Deno 1.17 Release Notes

Deno 1.17 adds JSON imports, import completions in the REPL, and much more.

Deno joins TC39

Deno has joined the JavaScript standards committee to improve the language for everyone.

Web Streams at the Edge

Deno Deploy provides web standard streaming infrastructure to easily whip up real-time applications.

Slack Introduces New Platform With Help From Deno

Today Slack has announced their next generation development platform. Slack chose Deno for its "secure by default" principles, its web standard APIs, and its first-class TypeScript support.

Connecting to Postgres from the edge

Many serverless at edge products can not connect to Postgres because they don't support TCP. Deno Deploy can.

Deno 1.16 Release Notes

Deno 1.16 adds support for new JSX transforms, reading files from disk using fetch, and much more.

Deno Deploy Beta 3

Deno Deploy is a multi-tenant distributed JavaScript VM running in 28 data centers across the world.

Deno 1.15 Release Notes

Deno 1.15 improves Web Crypto support, adds deno uninstall subcommand, stabilizes URLPattern and more.

September 23 incident update

Post-mortem report for the 35 minute service outage on on September 23, 2021.

Deno 1.14 Release Notes

Deno 1.14 improves Web Crypto support, adds customization options to deno fmt and deno lint, introduces URLPattern, and more.

Deno Deploy Beta 2

Deno Deploy is a multi-tenant distributed JavaScript VM running in 25 data centers across the world.

Deno on MDN

Web compatibility data for Deno is now available on MDN.

Deno 1.13 Release Notes

Deno 1.13 stabilizes the native HTTP server, and introduces FFI, a streaming WebSocket API, the new self.structuredClone() function and more.

July 27 incident update

Post-mortem report for the 6 minute service outage on July 27, 2021.

Deno 1.12 Release Notes

The Deno 1.12 release adds server side WebSockets, support for WASM threads, new web crypto APIs and more.

Deno Deploy Beta 1

Deno Deploy is a multi-tenant distributed JavaScript VM running in 25 data centers across the world.

Deno 1.11 Release Notes

The Deno 1.11 release adds new web APIs, resolves long standing issues, and improves editor experience.

Deno 1.10 Release Notes

Deno 1.10 improves the built-in test runner, adds support for Web Storage API, structured clone, and more.

Deno 1.9 Release Notes

Deno 1.9 adds a new native HTTP/2 web server, a vastly improved op infrastructure, import completions in the LSP, an interactive permission prompt, blob url support.

Announcing the Deno Company

We have raised money to enable the millions of web programmers out there to maximally leverage their craft.

March 2 incident update

Post-mortem report for the 98 minute service outage on March 2, 2021.

Deno 1.8 Release Notes

Deno 1.8 adds experimental support for the WebGPU API, adds support for importing private modules, stabilizes import maps, revamps coverage tooling, adds ICU to provide internationalization out of the box, and a whole lot more.

Deno 1.7 Release Notes

Deno 1.7, one of our largest releases to date, adds cross compilation and 60% smaller binaries for deno compile, a DNS resolver API, support for data URLs in import statements and web workers, and much more.

Deno in 2020

Retrospect of what happened in Deno in 2020

Deno 1.6 Release Notes

Deno 1.6 adds the ability to build your Deno projects into fully standalone, self-contained executables with `deno compile`. The release also introduces a built-in LSP for editor integrations, and experimental Apple Silicon support.

Deno 1.5 Release Notes

Deno 1.5 improves `deno bundle` with support for tree shaking and a 15x speed improvement. This release also adds the `alert`, `confirm`, and `prompt` APIs and enhances the REPL.

Deno 1.4 Release Notes

Deno 1.4 adds support for the web standard WebSocket API, deno run --watch, and integrated test coverage. This is the largest feature release yet.

Updates to deno.land/x

Design considerations and changes for the new code hosting service.

Deno 1.0

Dynamic languages are useful tools. Scripting allows users to rapidly and succinctly tie together complex systems and express ideas without worrying about details like memory management or build systems.