Browser Extension for ChatGPT
Browser Extension
Browser extension that elevates the ChatGPT user experience with enhanced productivity features
Published on
January 13, 2026


$230,000
Asking Price
Main Metrics
$54,200
ARR
598
Customers
2024
Launched
$50,000
Asking Price
Already Sold
Main Metrics
$54,200
ARR
598
Customers
2024
Launched
Overview
<p><b>Startup description</b></p><p>My product is a fast-scaling browser extension SaaS product that elevates the ChatGPT user experience with enhanced productivity features such as prompt chaining, dynamic templates, MP3 export, advanced search, chat organization, and localization. Launched in late 2024 and developed entirely by a seasoned software engineer, the extension has quickly amassed a loyal global user base by delivering what the official ChatGPT platform lacks. The product currently generates a 99% profit margin, built with minimal overhead and fully owned IP. With a revenue multiple of 4.9x and over 17,000 users, my product represents an exceptionally lean, product-led growth business with high engagement and zero reliance on paid acquisition.</p><p><b>Key highlights:<b></b></b></p><ul>
<li>Annual revenue - $51,400</li>
<li>Annual profit - $51,100</li>
<li>Churn rate - 6%</li>
<li>Business margin - 99%</li>
</ul>
<p><b>Team</b></p><p>We are 2 co-founders developing everything.</p><p><b>Tech Stack</b></p><p>TypeScript, Node.js, Express.js, MongoDB, DigitalOcean.</p><p><b>Marketing and growth</b></p><p>Reddit - provided most of our users with posts on Facebook groups, resulting in a large number of new paying customers.</p><p><b>Revenue and profit</b></p><p>Over the last 12 months, my SaaS has generated approximately $51.4k in total revenue and $51.1k in total profit, operating at an exceptional ~99% profit margin. On average, the business produces around $4.3k in monthly revenue and $4.26k in monthly profit, reflecting a highly efficient, capital-light operation with minimal ongoing costs and consistent performance.</p><p><b>Startup assets<b></b></b></p><ul>
<li>Subreddit with over 15K members.</li>
<li>Our extension and website.</li>
<li>Email newsletter with over 8K subscribers.</li>
</ul>
<p><b>Risks</b></p><p>OpenAI may develop some of our features, so we need to stay a few steps ahead and develop features that ChatGPT does not have.</p><p><b>Summary</b></p><ul>
<li>Ultra-lean and profitable with 99% margins</li>
<li>Demonstrated market fit with 598 paying users and 17,000+ active users</li>
<li>High user retention and low churn</li>
<li>Strong brand reputation with thousands of organic Chrome users and subreddit members</li>
<li>No customer acquisition cost to date, growth is fully organic</li>
<li>Clear and immediate upside in monetization, marketing, and feature expansion.</li>
</ul>
<p>✅ $54,200 in ARR</p><p>✅ 598 customers</p><p>✅ Business model: SaaS</p><p>✅ Built with TypeScript, Express.js, Node.js</p>
$54,200
Annual Revenue
598
Number of Customers
Expenses
Domain registration -USD $9 /month;
Hosting - USD $24 /month.
Business Model
Monthly - $9.99, lifetime - $99.
Target Audience
Any ChatGPT user.
Asking Price Reasoning
The extension went live in the Chrome Web Store with zero marketing spend and was awarded a “Featured” badge. Paid subscriptions were introduced two weeks later and generated $400 on Day 1. The low churn and rising subscriber base confirm ongoing demand.
Reason for Selling
Focusing on another SaaS - lack of time.
Growth Opportunity
Adding more features.
30 days free support from seller
Competitors
Superpower ChatGPT.
Tech Stack
TypeScript, Express.js, Node.js, Digital Ocean, JavaScript, MongoDB, Lemon Squeezy.
Traffic Metrics
Revenue Metrics
How it works
$230,000
Asking Price
Already Sold
Main Metrics
$54,200
ARR
598
Customers
2024
Launched

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