Build Web Apps plugin for Codex
Use Build Web Apps to create frontend application surfaces with Codex-generated visual assets, verify them with the Browser plugin and built-in app browser, compose shadcn/ui, wire Stripe payments, and design or tune Supabase/Postgres data flows.
How to install Build Web Apps in Codex
codex plugin add build-web-apps@openai-curatedCommand format from the Codex CLI reference (codex plugin add <plugin[@marketplace]>); openai-curated is the marketplace name in OpenAI's catalog file. You need to be signed in to Codex. Source: Codex CLI reference.
Or in Codex CLI type /plugins and pick it from the OpenAI curated marketplace; in the ChatGPT desktop app, open the Plugins tab. Start a new session afterwards so the plugin's skills and tools load. (OpenAI plugin docs)
What it contains
Skills (6)
frontend-app-builder— Use for new frontend applications, dashboards, games, creative websites, hero sections, and visually driven UI from scratch, or when the user explicitly asks for a redesign/restyle/modernization. Builds from clean, airy, high-taste, readable image-generated…frontend-testing-debugging— Use when testing, debugging, or making targeted improvements to rendered frontend apps through the Build Web Apps or web dev plugin: local dev servers, UI regressions, interaction bugs, console errors, responsive layout, and visual QA. Check whether the…react-best-practices— React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js…shadcn— Manages shadcn components and projects — adding, searching, fixing, debugging, styling, and composing UI. Provides project context, component docs, and usage examples. Applies when working with shadcn/ui, component registries, presets, --preset codes, or any…stripe-best-practices— Guides Stripe integration decisions — API selection (Checkout Sessions vs PaymentIntents), Connect platform setup (Accounts v2, controller properties), billing/subscriptions, Treasury financial accounts, integration surfaces (Checkout, Payment Element), and…supabase-postgres-best-practices— Postgres performance optimization and best practices from Supabase. Use this skill when writing, reviewing, or optimizing Postgres queries, schema designs, or database configurations.
Example prompts from the manifest
- Design a new landing page for my new SaaS product.
About this listing
Build Web Apps is in OpenAI's official curated Codex plugin catalog, published by OpenAI. It shows up in the Codex CLI plugin browser (/plugins) and in the ChatGPT desktop app's Plugins tab. The catalog lists it for the Codex product only. From its files we found 6 skills. The manifest says version 0.1.2. It's one of 79 listings in the Developer Tools category. It also appears in best Codex plugins for design and UI, best Codex plugins for data and databases.
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Build Web Apps FAQ
How do I install Build Web Apps in Codex?
Run codex plugin add build-web-apps@openai-curated (format from the Codex CLI reference). Or in Codex CLI type /plugins and pick it from the OpenAI curated marketplace; in the ChatGPT desktop app, open the Plugins tab. Start a new session afterwards so the plugin's skills and tools load.
Is Build Web Apps an official Codex plugin?
Yes. Build Web Apps is in OpenAI's official curated Codex plugin catalog (marketplace openai-curated), published by OpenAI. It appears in the Codex CLI plugin browser and the ChatGPT desktop app's Plugins tab.
What does Build Web Apps include?
From its files in OpenAI's plugin repo, Build Web Apps includes 6 skills: frontend-app-builder, frontend-testing-debugging, react-best-practices, shadcn, stripe-best-practices, supabase-postgres-best-practices.
Details
- Type
- Plugin
- Category
- Developer Tools
- Source
- Official OpenAI curated
- Publisher
- OpenAI
- Version
- 0.1.2
- License
- MIT
- Sign-in
- Asks you to connect/sign in the first time you use it
- Availability
- Codex only (per the catalog's products field)
- Keywords
- build, product-apps, frontend, image-generation, browser-testing, frontend-debugging, stripe, supabase, shadcn, full-stack, frontend-qa
- Source
- https://github.com/openai/plugins/tree/main/plugins/build-web-apps
- Website
- https://openai.com/
- Listed in
- OpenAI catalog file
- Tested by CodexStacks
- Not yet
Something wrong or missing? Submit or improve this listing. Listings also refresh automatically every night.
For maintainers: badge and embeds
Maintain Build Web Apps? Add the badge; it links to this page.
Markdown
[](https://codexstacks.com/p/build-web-apps/)HTML
<a href="https://codexstacks.com/p/build-web-apps/"><img src="https://codexstacks.com/badge.svg" alt="Listed on CodexStacks" width="172" height="28"></a>Embed card (static HTML and inline CSS, no JavaScript). Preview:
<a href="https://codexstacks.com/p/build-web-apps/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #3a2c26;border-radius:12px;background:#0d0b0a;color:#f3ece6;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#f3ece6">Build Web Apps</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#b5a9a1">Official Codex plugin · 6 skills</span><span style="display:block;margin:0 0 10px;color:#ddd3cc">Use Build Web Apps to create frontend application surfaces with Codex-generated visual assets, verify them with the…</span><span style="font-size:12px;font-weight:600;color:#ffb347">View on CodexStacks →</span></a>Markdown summary
**[Build Web Apps on CodexStacks](https://codexstacks.com/p/build-web-apps/)**: Official Codex plugin with 6 skills. Install: `codex plugin add build-web-apps@openai-curated`More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.
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