01 · Decide
Describe your offer
A landing page has one job: getting someone to take one action. Answer in a sentence each. Your answers fill in the prompts below automatically. Nothing you type here is sent anywhere.
Spelling
A Claude account at claude.ai (the free plan works), a Brevo account for your form (Brevo has a free plan), and an email address of your own for testing.
One setting in Claude: open Settings → Capabilities and make sure Code execution and file creation is on. Claude's design tool needs it.
02 · Build
Your 4 prompts, filled in
Use them in order, in one Claude design chat.
To start one: in Claude's left sidebar, click Design. Under Make something new, choose Design, then Start with a prompt. Can't see Design? Claude's help page on artifacts shows where it is.
Highlighted parts come from your answers above. Change anything you like after copying.
Prompt 1: Write the words first
Send this as your first message in the design chat. Asking for the words first makes them easier to check.
Prompt 2: Turn the copy into a page
First do check 1 below. Then send this in the same chat. If Claude asks to run a command, click Allow.
Prompt 3: Add your sign-up form
Make your Brevo form first (see the checklist below), copy its Iframe embed code, and paste it where shown. Claude then gives you a page file with your form built in, with a Download button. In Claude's preview the form shows as a grey box. That's normal: test it in your browser (see "Test it" below).
Prompt 4: Change one thing only
A good first change: Claude often leaves placeholders in the footer, such as your business name and a privacy policy link. If you collect email addresses, you'll normally need that link. Telling Claude to keep everything else the same stops it rebuilding the whole page. Then download the updated file.
03 · Check
The 2 checks I never skip
Claude writes fast, but only you know what's true about your offer. These two checks keep your page honest and make sure it does its one job.
Check 1: Remove anything made up
Check 2: Every button leads to the one action
04 · Connect
Sign-up form checklist (Brevo)
This is the part that makes your page useful: real email addresses arriving in a real list. Tick each step as you go.
Set up
Your consent line
If you plan to send more emails, say so plainly on the form, and let people tick a separate box for them. The freebie is sent either way.
Test it
The form won't work inside Claude's preview (it shows a grey box). Click Download on the page file, double-click the file so it opens in your browser, and test there.
05 · Launch
Where should your page live?
Answer two questions and I'll suggest a starting point. Prices change, so always check the provider's own pricing page.
Do you want your own web address (like yourname.com)?
Are you happy to pay for hosting?
Your suggestion appears here
Choose an answer to both questions.