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Engineering

Why We Added package.json Support to Deno

The most recent release brought some significant changes in the form of better Node and NPM compatibility with package.json support. This prompted questions from our users about whether our core priorities have shifted.

How To

Build a REST API with Express, TypeScript, and Deno

How to setup a REST API using Express and TypeScript in minutes.

Announcements

Introducing the Annual State of Edge Functions Survey

Together we can identify current and upcoming trends as well as common frustrations to better understand how to best use this nascent technology.

Fresh Deno Deploy

You Don't Need a Build Step

The build step helps Node.js/npm run in the browser, optimize end-user performance, etc. But long build times limit productivity. With modern tooling, do we still need a build step?

Product Update

Deno 1.31: package.json support

Deno 1.31 adds support for package.json, stabilizes Node-API, Deno.Command API, adds `node:v8` module, and more.

Announcements

Office Hours Roundup and Update

We’ve got Q&A highlights from our last two live events and updates about Office Hours going forward.

Engineering How To

Roll your own JavaScript runtime, pt. 2

We'll implement `fetch`, read command line arguments, and add native support for TypeScript and TSX.

How To Deploy

Build a Simple Image Resizing API in less than 100 LOC

A tutorial on building and deploying a simple image resizing API.

How To Deploy

The Future (and the Past) of the Web is Server Side Rendering

A brief history about server-side rendering and why it's the right approach for modern web development.

Product Update

Deno 1.30: Built-in Node modules

Deno 1.30 supports built-in Node modules, deno.json is an import map, deno fmt can format without semicolons, and more...

Announcements

Office Hours Transcript for 2023-01-13

Here's a list of questions, answers, and takeaways from our January 13th office hours.

Product Update

Deno in 2022: npm, Edge Functions, Series A, Fresh, and more

2022 was a big year for Deno. Here are the biggest updates from the past year and what's coming up next.

How To

How to Build a GraphQL Server with Deno

A short tutorial on building a GraphQL server in Deno.

Announcements

Announcing Office Hours!

We're hosting bi-weekly office hours in our Discord server! Ask questions (or submit them in advance), get technical help, or just come and hang out.

Product Update

Deno 1.29: Custom npm registry support

Deno 1.29 ships with many npm compatibility improvements, lots of quality of life improvements and TypeScript 4.9

Partnerships

Build an Edge Function for the Supabase Hackathon

We're sponsoring and judging the Best Edge Functions category. Create an edge function and be eligible to win Deno merch and other prizes.

How To Deno Deploy

How to build a static site with Lume

Build a simple static site with Lume.

How To

Run npm and Deno anywhere

Did you know you can host and run your Deno code in any virtual private server? Here's how to get started.

Product Update

Build a More Secure Web using npm with Deno

How Deno's secure-by-default and opt-in permissions system gives you more confidence in running untrusted npm modules.

How To

Build Apps in Deno with Frameworks such as React, Vue, Express, and more.

Getting started with web frameworks in npm and Deno.

How To

Persist Data in Deno with npm using Prisma, Mongoose, Apollo, and more.

Here's how to get started with a few data persistence npm modules and Deno.

Product Update

Deno 1.28: Featuring 1.3 Million New Modules

Deno 1.28 ships with stabilized npm modules, auto-discovered lock file, a new subprocess API, and more

Fresh How To

Introducing Fresh WordPress Themes

Combine the DX and performance of Fresh with the reliability and dependability of WordPress.

Fresh How To

How to Setup Auth with Fresh

A tutorial to setting up authentication with Fresh.

Product Update

Deno 1.27: Major IDE Improvements

Deno 1.27 ships with major improvements for IDEs, better support for npm packages, navigator.language Web API and more.

How To Fresh Deno Deploy

How to Build a Blog with Fresh

Create a simple blog with Fresh in minutes.

Deno Deploy

Which serverless edge platform has the fastest git deployments?

We test a handful of popular serverless edge computing providers to see which has the fastest git deployment time.

Fresh Deno Deploy

The Future of the Web is on the Edge

A brief history of the internet explaining why building for the edge is faster, more secure, and easier than ever.

Product Update

Deno 1.26 Release Notes

Deno 1.26 adds Cache Web API; improves permission system, experimental npm support, Node.js compatibility; ships with TypeScript 4.8, and more.

Engineering Deno Deploy

The Anatomy of an Isolate Cloud

Deno Deploy is one of the fastest ways to deploy an app. How does it work?

Partnerships

Slack releases platform open beta powered by Deno

Introducing the new Slack Platform that is a faster, flexible, and more secure way to build on top of Slack.

Engineering

A Whole Website in a Single JavaScript File, cont'd

A modern website with dynamic API endpoints and form functionality in a single JavaScript file.

Product Update Fresh

Fresh 1.1 - automatic JSX, plugins, DevTools, and more

This release makes Fresh even more powerful with automatic JSX, plugins, DevTools integration and more.

How To Engineering

How to Build an E-commerce Site with a Perfect Lighthouse Score

This tutorial will show you how to optimize for performance with SSR and islands, as well as deploying to the edge.

Product Update

Deno 1.25 Release Notes

Deno 1.25 adds the `deno init` subcommand, experimental support for importing npm packages, a new faster web server, and performance improvements to the FFI.

Product Update

Big Changes Ahead for Deno

Learnings from our recent survey and feedback from across our community. We'll discuss how we're addressing this feedback and the features to expect from Deno in the coming months.

Engineering How To

Roll your own JavaScript runtime

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

Product Update

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

Product Update Deno Deploy

2022-07-18 incident update

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

Product Update Deno Deploy

July 13th Utah Outage Update

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

Engineering How To

wasmbuild - Using Rust in Deno and Web Apps

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

Product Update Fresh

Fresh 1.0

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

Product Update

Deno raises $21M

Series A led by Sequoia Capital

Product Update

Deno 1.23 Release Notes

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

Product Update Deno Deploy

May 30 incident update

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

Product Update Deno Deploy

Deno Deploy Beta 4

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

Product Update

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

Product Update

Announcing the Web-interoperable Runtimes Community Group

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

How To Deno Deploy

How to setup a blog with Hugo and Deno Deploy

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

Product Update

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

Partnerships How To Deno Deploy

Netlify Edge Functions on Deno Deploy

Introducing Netlify Edge Functions built on Deno Deploy.

Engineering

A Whole Website in a Single JavaScript File

Explanation and making of a website in a single JavaScript file

Partnerships How To Deno Deploy

Supabase Functions on Deno Deploy

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

Product Update

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

How to use Google Analytics in Deno Deploy

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

Engineering How To

How to publish Deno modules to NPM

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

Product Update

Deno 1.19 Release Notes

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

Product Update How To Deno Deploy

Static Files on Deno Deploy

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

Engineering

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.

Product Update

Deno in 2021

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

Product Update

Deno 1.18 Release Notes

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

Product Update

January 4th incident update

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

Product Update

Deno 1.17 Release Notes

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

Product Update

Deno joins TC39

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

Product Update Deno Deploy

Web Streams at the Edge

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

Partnerships Deno Deploy

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.

How To Deno Deploy

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.

Product Update

Deno 1.16 Release Notes

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

Product Update Deno Deploy

Deno Deploy Beta 3

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

Product Update

Deno 1.15 Release Notes

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

Product Update Deno Deploy

September 23 incident update

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

Product Update

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.

Product Update Deno Deploy

Deno Deploy Beta 2

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

Product Update

Deno on MDN

Web compatibility data for Deno is now available on MDN.

Product Update

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.

Product Update Deno Deploy

July 27 incident update

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

Product Update

Deno 1.12 Release Notes

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

Product Update Deno Deploy

Deno Deploy Beta 1

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

Product Update

Deno 1.11 Release Notes

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

Product Update

Deno 1.10 Release Notes

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

Product Update

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.

Product Update

Announcing the Deno Company

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

Product Update

March 2 incident update

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

Product Update

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.

Product Update

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.

Product Update

Deno in 2020

Retrospect of what happened in Deno in 2020

Product Update

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.

Product Update

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.

Product Update

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.

Product Update

Updates to deno.land/x

Design considerations and changes for the new code hosting service.

Product Update

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.