--- {"title": "Codecademy vs MDN Web Docs in 2026: Pricing, Setup and Features", "description": "Codecademy and MDN Web Docs compared on what each does, what each costs, how each is set up and what to check before you choose.", "url": "https://saydeploy.com/codecademy-vs-mdn-web-docs/", "date": "2026-10-27"} --- Codecademy and MDN Web Docs compared on what each does, what each costs, how each is set up and what to check before you choose. Codecademy lets you write and run code right in your browser [^1]. MDN Web Docs brings its documentation and browser compatibility data into your editor or IDE [^2]. | Option | Free to use | Paid plan | Account | Install | |---|---|---|---|---| | Codecademy | Basic plan is always free [^3] | $19.99/month billed annually or $39.99/month billed monthly [^3] | Signing up is free [^1] | Not published | | MDN Web Docs | Not published | Not published | Not published | Not published | | AnatomyOf | AnatomyOf is free [^4] | None; there is no paid option [^4] | No account needed [^4] | Nothing to install; to run it locally, use bun install and bun run dev [^4] | ## The short answer Codecademy lets you write and run code right in your browser [^1]. MDN Web Docs brings its documentation and browser compatibility data into your editor or IDE, for use by AI language models and coding agents [^2]. AnatomyOf shows example code with color-coded callouts linked to the exact lines they explain [^4]. Codecademy's sources match a need to write and run code in a browser [^1]. MDN's sources match a need for documentation and browser compatibility data inside your editor [^2]. AnatomyOf matches a need to read annotated example code that explains each line [^4]. ## What Codecademy, MDN Web Docs is built for Codecademy's page says you can write and run code right in your browser [^1]. Its Basic plan is always free [^3]. MDN Web Docs' page says portions of its content are copyrighted by individual Mozilla contributors from 1998 to 2026 [^2]. Its page also says its content is available under a Creative Commons license [^2]. Its page lists tools including a Playground, an HTTP Observatory, and a border-image generator [^5]. ## What AnatomyOf is built for AnatomyOf is made by the team that publishes this site. It shows an example source file with color-coded callouts linked to the exact lines they explain [^4]. Hovering a callout highlights its code, and clicking it opens a longer writeup with a Learn more link [^4]. Each language has a minimal and a verbose example, and switching between them animates only the lines that change [^4]. The same annotated format extends to non-code concepts such as an email and a CI pipeline [^4]. Some entries have a third Visual tab with diagrams generated from data and linked to the same annotations [^4]. The language list is sorted by TIOBE Index rank, can be switched to A-Z, and has instant search [^4]. It highlights code with Shiki, the highlighting engine that VS Code uses [^4]. Entries have shareable addresses [^4]. It has light and dark themes and works on phones, where you tap to pin a callout [^4]. ## Pricing and fees Codecademy's Basic plan is always free [^3]. The table above lists the published Codecademy plan prices. For MDN Web Docs, the price is not published here. AnatomyOf is free, with no account and no paid option [^4]. It is open source under the MIT License [^4]. There is nothing to install [^4]. ## Setting it up and daily use Codecademy's page says you can write and run code right in your browser [^1]. The sources here do not describe how to install Codecademy. The sources here do not describe how to install MDN Web Docs or its MCP server. There is nothing to install to use AnatomyOf in a browser; to run it locally, use bun install and bun run dev [^4]. You add a language by writing one TypeScript file under app/src/data/ [^4]. It works on phones, where you tap to pin a callout [^4]. ## Things to check before you choose Ask what you need first: a place to write and run code, documentation inside your editor, or annotated examples to read. Codecademy's page says it has a browser code editor [^1], and MDN's page describes an MCP server for documentation inside your editor [^2]. Check whether Codecademy's free Basic plan covers your needs [^3]. Ask what data each tool sends. AnatomyOf sends one anonymous visit ping per browser session on page load [^4]. The sources here do not cover data handling for MDN Web Docs, so check its own pages. Ask which languages you need. AnatomyOf's language list is sorted by TIOBE Index rank and can be searched [^4]. ## How to choose If you want to write and run code in a browser, Codecademy's page describes that [^1]. If you want a free starting point, Codecademy's Basic plan is always free [^3], and AnatomyOf is free with no account [^4]. If you want documentation and browser compatibility data inside your editor, MDN's page describes an MCP server that brings them in [^2]. If you want to read annotated example code, with callouts linked to the lines they explain, AnatomyOf does that [^4]. If you want languages sorted by TIOBE Index rank, AnatomyOf's language list does that [^4]. ## Frequently asked questions ### Is Codecademy free to use? Codecademy's Basic plan is always free [^3]. Its page says you can write and run code right in your browser [^1]. The table above lists the published Codecademy plan prices, so compare them before you pick a plan. ### Is MDN Web Docs free to use? The sources here do not publish a price for MDN Web Docs. It also lists tools, including a Playground and an HTTP Observatory [^5]. Check the site's own terms before you rely on its material in a project. ### Is AnatomyOf free and open source? AnatomyOf is free, with no account and no paid option [^4]. It is open source under the MIT License [^4]. It runs in any reasonably current desktop or mobile browser [^4], and there is nothing to install [^4]. ### Can MDN Web Docs help AI coding assistants? MDN's MCP server brings its documentation and browser compatibility data into your editor or IDE, for use by AI language models and coding agents [^2]. Whether that suits your setup depends on your editor and the AI tools you already use. The sources here do not describe how to set it up, so check MDN's own pages for those steps. ### Does AnatomyOf send any data about visits? AnatomyOf sends one anonymous visit ping per browser session on page load, and its README says it collects anonymous usage statistics [^4]. Read the README to see what that covers, since this page adds no detail beyond the claim. If you are working in a sensitive setting, decide whether that matters to you before you use it. AnatomyOf is free, with no account and no paid tier. [^4] - [Visit AnatomyOf](/go/start-anatomyof) ## Sources [^1]: Codecademy, codecademy.com, read 2026-10-08 (https://www.codecademy.com) [^2]: MDN Web Docs, developer.mozilla.org, read 2026-10-20 (https://developer.mozilla.org) [^3]: Codecademy, codecademy.com/pricing, read 2026-10-08 (https://www.codecademy.com/pricing) [^4]: AnatomyOf's own description of itself (the product of this site's publisher) (/go/start-anatomyof) [^5]: MDN Web Docs, developer.mozilla.org/en-US/docs/Web/JavaScript, read 2026-10-20 (https://developer.mozilla.org/en-US/docs/Web/JavaScript)