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Codex · Website and app builder

Websites and web apps, built from a conversation.

Tell Cody what you need. Codex shapes a plan with you, builds it, shows it live and puts it online.

Free to sign up. No card needed.

The Codex builder: a chat with Cody next to a live preview of a bookshop websiteThe Codex builder: a chat with Cody next to a live preview of a bookshop website

What you can build

Your website and your web app, in one place

Start a project, choose a website or a web app and describe it. Every project stays in Codex, so you can come back and keep building.

Starting a new project in Codex: choose a web app or a websiteStarting a new project in Codex: choose a web app or a website

Websites

Landing pages and marketing sites with the pages you ask for, in the style you describe.

  • One page or many pages
  • Your logo and colours, or a palette Codex picks
  • A free thinqit.site address or your own domain

Web apps

Interactive apps backed by a database, such as an ordering app, a client portal or a dashboard.

  • Plan the screens and the data in the chat
  • Built on a real database
  • Try the app in the live preview

How it works

Describe it. Preview it. Publish it.

  1. Step 1: Describe

    Tell Cody what the business does and who it is for. Add a logo, photos or a PDF. Cody asks a few questions and writes a plan for you to approve.

  2. Step 2: Preview

    Codex builds the first version and shows it live next to the chat. Ask for changes in plain words and the preview updates.

  3. Step 3: Publish

    Put it online on a free thinqit.site address, or connect a domain you own. HTTPS is set up for you.

Plan first

A clear plan before anything is built

Cody asks what you are making, who it is for and which pages or screens you need. Change the plan as often as you like. The build starts when you say it looks right.

  • A few focused questions, no long forms
  • Pages, style and colours in one plan
  • The same flow for websites and web apps
Cody planning an ordering app for a bookshop in the Codex chatCody planning an ordering app for a bookshop in the Codex chat

Live preview

See it on every screen

The preview sits right next to the chat. Switch between computer, tablet and phone, or open the site in a new tab. Builds run in the background, so you can close the page and come back later.

  • Computer, tablet and phone views
  • A small tweak, one page or a full rebuild
  • The same preview link after every change
The Codex preview showing a bookshop website at phone sizeThe Codex preview showing a bookshop website at phone size

Publish

Live on your own address

Publish on a free thinqit.site subdomain that works right away. Or connect a domain you own: Codex shows the DNS records to add and verifies them for you.

  • A free subdomain, no DNS work
  • Your own domain, with HTTPS
  • Check if a name is free before you publish
The Codex publish window with a free subdomain and a custom domain optionThe Codex publish window with a free subdomain and a custom domain option
A bookshop website built with Codex, live on its thinqit.site address on a phone

Pricing

Sites from €20 a month, apps from €50 a month

Every plan includes monthly credits for building. Your balance is checked before a build starts, and a build that fails is not charged.

Compare plans

Websites

Sites Launch, 15 credits a month

From€20a month

Web apps

App Launch, 45 credits a month

From€50a month

Codex FAQ

What teams need to know about Codex

Clear answers about the thinQit website and web app builder.

What can Codex build?

Codex builds websites and web apps from a conversation. Websites can be one page or many pages, and web apps are interactive and backed by a database. Every project has a live preview next to the chat.

How do I start a project in Codex?

Choose a website or a web app and tell Cody what the business does and who it is for. Add a logo, photos or a PDF if you have them. Cody asks a few questions, writes a plan and starts building when you approve it.

Where is my site published?

On a free thinqit.site subdomain that works right away, or on a domain you own. Codex shows the DNS records to add, verifies them and sets up HTTPS.

Explore related thinQit pages

Compare plans and pricing Meet the AI teammates Read practical guides

Your next site starts with one sentence.

Create your account, open Codex and tell Cody what to build.

Free to sign up. No card needed.