Part of the Google Ads Agent ecosystem

Google Ads Builder

AI-powered ad copy generation for Google Ads. Enter your landing page, pick your AI model, and get production-ready RSA headlines, descriptions, sitelinks, and callouts in seconds.

Launch Builder — It's Free Read the Docs
15 RSA Headlines
4 Descriptions
3 AI Models
0 Data Stored

What it builds

One landing page URL in, complete ad copy out. The builder analyzes your page, understands your offer, and generates every asset type Google Ads needs.

📝

RSA Headlines

Up to 15 headlines per ad, each 30 characters max. Pinned and unpinned variants with keyword insertion tokens where relevant.

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RSA Descriptions

4 descriptions per ad, 90 characters max. Benefit-driven copy with clear CTAs, each designed to complement any headline combination.

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Sitelinks

4–8 sitelink extensions with titles (25 chars) and descriptions (2 lines × 35 chars). Deep links to your most important pages.

📣

Callout Extensions

4–6 callouts highlighting key benefits, features, or trust signals. 25 characters each, designed for maximum impact in limited space.

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Structured Snippets

Category-based snippets (Brands, Services, Types, etc.) that add context to your ads and improve click-through rates.

🧠

Landing Page Analysis

AI reads your landing page to extract value propositions, CTAs, target audience signals, and competitive positioning before writing a single word.

How it works

Three steps. No account needed. No data leaves your browser.

Step 1 → Enter your AI API key (stored in your browser only)
Step 2 → Paste your landing page URL
Step 3 → AI analyzes page... extracting value props, CTAs, audience signals
// Generated Output
Headline 1: "Free Shipping on All Orders" (30 chars) ✓
Headline 2: "Save 40% — Limited Time Only" (28 chars) ✓
Headline 3: "{KeyWord:Premium Widgets}" (26 chars) ✓ pinned:1
...
Description 1: "Shop our award-winning collection. Rated 4.9★ by 10K+ customers. Free returns, no questions asked."
→ 15 headlines · 4 descriptions · 6 sitelinks · 4 callouts
→ Copy to clipboard or export as CSV

Your keys, your browser

The Google Ads Builder runs entirely in your browser. API keys are encrypted in sessionStorage and never touch a server.

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Session-Only Storage

API keys live in sessionStorage. Close the tab, keys are gone. Nothing persists.

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AES-256 Encryption

Keys are encrypted with Web Crypto API before storage. Even sessionStorage never sees plaintext.

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Zero Server Calls

Your browser talks directly to the AI provider's API. We never proxy, log, or see your requests.

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Open Source

Every line of code is inspectable. No hidden endpoints, no tracking, no analytics.

Pick your model

Bring your own API key from any supported provider. Each model has strengths — try them all.

Claude (Anthropic)
GPT (OpenAI)
Gemini (Google)
It doesn't guess your copy.
It reads your page first.
Then it writes what converts.

Start building

No sign-up. No credit card. Just your API key and a landing page URL.

Launch Google Ads Builder → Step-by-Step Guide