codexplugin
B

Build Web Apps

Official

by OpenAI

Plugincoding8.9K stars

Build, review, ship, and scale web apps end-to-end

Install now

$ npx codex-marketplace add openai/plugins/plugins/build-web-apps --plugin

About

Build, review, ship, and scale web apps end-to-end

Build Web Apps is a codex plugin that extends OpenAI Codex with coding capabilities. After install, Codex can use Build Web Apps context and actions during your coding sessions without leaving the conversation.

Source package path: openai/plugins/plugins/build-web-apps on GitHub (openai/plugins).

Key features

  • Official extension maintained for current Codex APIs
  • Adds Build Web Apps capabilities directly inside Codex chat
  • Installs with one npx command — no manual config editing
  • Built for coding workflows

How to install

  1. 01

    Copy the install command

    Use the command on this page — it includes the correct --plugin flag for this plugin.

  2. 02

    Run it in your project terminal

    Execute the command from the directory where you use Codex, not necessarily your home folder.

  3. 03

    Restart or reload Codex

    Restart the Codex CLI or reload your IDE window so the new extension is picked up.

  4. 04

    Try an example prompt

    Ask Codex something related to Build Web Apps to confirm the plugin is active.

Example prompts

Try these after installing to confirm Build Web Apps is working.

> Connect Codex to Build Web Apps and show me what actions are available
> Use Build Web Apps to help with my current coding task
> What can the Build Web Apps integration do in this project?

Requirements

  • Node.js 18 or newer with npx available
  • Codex CLI or IDE extension installed and signed in
  • Some official plugins open OAuth in your browser on first use
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