Development

MDN Plus

Save and annotate MDN articles, follow browser-compatibility updates and find documentation with AI Help.

Open MDN Plus developer.mozilla.org

Workflow use

This profile describes the product. No current evidence-qualified workflow assignment is available in the visible catalogue.

Explore reviewed workflows

Overview

MDN Plus adds a personal article library and notes to MDN Web Docs. Its Updates stream helps inspect browser-support changes and find a technology by name. AI Help locates MDN articles and displays the pages consulted, which you can review directly.1 2 3

What you can do

Save MDN articles in a library available across devices.1
Add a personal note to a saved article.1
Inspect a stream of browser-compatibility updates.2
Search updates for a feature by name or keyword.2
Find MDN articles with AI Help and inspect the consulted pages.3

Get started

On an MDN article, select Save at the top of the page to begin a collection.1

Ways to use it

Ideas based on documented features.

Maintain a reference collection for technologies used by a project.1
Check browser support changes before choosing a web-platform feature.2

Before you start

AI Help article lookup is a starting point; inspect the consulted MDN pages before relying on an answer.3

Additional provider details

Separately collected provider information, checked 2026-10-14. Its sources and any licence notices are retained in Practical details below.

MDN Plus adds subscription features for customising the MDN Web Docs experience.

Main uses

The related MDN Playground lets web developers preview and experiment with HTML, CSS and JavaScript.

Product features

AI Help searches and summarises MDN documentation for both free and paid MDN Plus subscribers.

Getting started

Practical details

Facts adapted from Mozilla Contributors documentation under CC BY-SA 2.5. No endorsement is implied. Adapted and condensed from the cited MDN documents by Mozilla Contributors. These adapted passages are available under CC BY-SA 2.5; source wording and ordering have been changed.

Documentation and evidence

Sources by Mozilla Contributors; adapted passages retain the licence above. Coding activity here means web-code experimentation, not verified application deployment. No workflow capability is granted.

Feature Overview | MDN Plus · checked 2026-10-14
AI Help | MDN Plus · checked 2026-10-14
Playground | MDN Plus · checked 2026-10-14

MDN Plus adds subscription features for customising the MDN Web Docs experience.

MDN Plus is a premium subscription service launched by Mozilla. The service allows users to customize their MDN Web Docs experience through premium features such as Collections, filtering Updates and MDN Offline.

Source passage · html:67533:67752 · 2026-10-14

Document SHA-256: 0b97de5567dc8694981b7838634c22f9b62e24af521425e17f89ac885cc5f923

The related MDN Playground lets web developers preview and experiment with HTML, CSS and JavaScript.

The Playground is the new web development tool provided by MDN. It serves as a platform for web developers to preview and experiment with HTML, CSS, and JavaScript code. The Playground offers features like basic autocomplete, code formatting using the popular "prettier" tool, and the ability to share your work with others. By integrating the Playground into our web docs, MDN aims to provide an enhanced learning and coding experience for developers.

Source passage · html:69533:69992 · 2026-10-14

Document SHA-256: 2d2e2dd3c8087b91b7a4eb1806affd8ded9a591cf39a14e848dae883b0ca7af3

AI Help searches and summarises MDN documentation for both free and paid MDN Plus subscribers.

AI Help, available for both free and paid MDN Plus subscribers, utilizes OpenAI GPT-4o mini for free users and GPT-4o for paying subscribers to enhance the MDN experience. It offers quick and effective access to MDN's broad database. It specializes in searching and summarizing MDN content to directly address your queries. Additionally, for web development queries not covered in MDN, AI Help draws on its external knowledge, always indicating when the sources are from outside MDN.

Source passage · html:68337:68827 · 2026-10-14

Document SHA-256: 71b9791ec9f7c839ff8032c581608fd8c419269c6d2549d0753c0d4e9b4ae6c9

If you're not logged in or don't have an MDN Plus account, you'll be prompted to sign up or log in using your Mozilla Account.

Source passage · html:70159:70292 · 2026-10-14

Document SHA-256: 71b9791ec9f7c839ff8032c581608fd8c419269c6d2549d0753c0d4e9b4ae6c9

Audience: Developer

Provider help and training

Provider restrictions

AI Help has free and paid access. Exact prices and usage quotas were not established.
A Mozilla Account is required for AI Help.
Code testing is provided through the related MDN Playground; application deployment is not established.
The Playground documentation invites users to sign up for an MDN Plus account; paid exclusivity is not established.

Official source, checked 2026-10-14. Current pricing, plan availability and data location should be checked with the provider.

MDN Plus is a trademark of the Mozilla Foundation in the US and other countries. FindaFlo is not affiliated with or endorsed by Mozilla.

Includes adapted Mozilla Contributors documentation under CC BY-SA 2.5. Adapted and condensed from the cited MDN documents by Mozilla Contributors. These adapted passages are available under CC BY-SA 2.5; source wording and ordering have been changed. No endorsement is implied.