Two down, two to go. Goal is 4 extensions by end of year.

What I'm excited about: The side panel approach. It's so much better than popup extensions - stays open while you browse, doesn't block your view, and you can reference it across multiple tabs. Honestly think more developers should be building with the side panel API.

SEO Copilot gives instant on-page SEO analysis - meta tags, headings, links, images, structured data, the whole package. Built it because I was tired of juggling multiple tools for basic audits.

Next two extensions in the works. Let's see if I can hit that 4/4 target. 💪

Links: SEO Copilot - Chrome Web Store

Two weeks ago I posted about learning WXT to build my first browser extension. Well, I shipped it just 3 days ago - Email Buttons for Gmail.

What it does: Adds styled buttons and QR codes to Gmail emails.

Tech stack:

• WXT + Vite + React
• TypeScript
• Landing page (Next.js)
• Stripe

What I like about WXT:

• Content script hot reload was a game-changes during dev
• Built-in bundling handled everything (especially come to publishing time)
• Abstracts away the complexities of Chrome APIs, which make feature building the only thing I focus on

Results after 3 days of launch:

• 10 organic installs (I didn't share to any launchpads or directories like I did for NewsletterStack)
• Launching on Product Hunt today (If you want to support me - PH link) - We are at the 4th place for product of the day at the moment I'm writing this.
• So far, the reactions have been great especially from the marketing communities. (will share more once the metrics come in, chrome web store data is lagging 2 days behind)

WXT 100% delivered on the smooth DX. I highly recommend for anyone building extensions.

Recently got into learning how to build a browser extension and came across WXT, a modern framework that a few creators recommended. I’ve been playing around with it for the past few days and it’s looking pretty solid so far.

What really stood out to me is how smooth the developer experience is. It’s built on top of Vite, supports TypeScript out of the box, and even hot-reloads your background and content scripts while you’re developing. The documentation is clear and well-structured, which made it easy to get something running quickly.

I’ll be shipping something interesting with it in the coming week. If you’re curious, check it out here (🙌highly recommended): https://wxt.dev/

Quick update on NewsletterStack.

Yesterday I decided to stop hunting for new platforms to launch on and instead focused on engaging with my target audience on Reddit. Just replied to comments, answered questions, joined conversations.

What happened:

• Found a bug in the cost calculator. Some platforms weren't showing the right numbers when switching from monthly to yearly plans
• A user asked about GetResponse. It was already scheduled to go live, but I fast-tracked adding it to the cost calculator based on their request
• Had genuine conversations with newsletter creators about their platform choices

Sometimes the best QA comes from talking to people who are actually looking for a solution.

What's your take, launch everywhere or focus on connecting?🤔

I launched NewsletterStack yesterday and already shipping updates.

Added two free tools today:

• Newsletter Cost Calculator – compare pricing across Beehiiv, Substack, Kit, Ghost, and more based on your audience size
• Email Authentication Checker – verify your SPF, DKIM, and DMARC setup so your emails actually reach inboxes

NewsletterStack (←link to launch arena) is live here in Launch Arena. If this sounds helpful, would really appreciate an upvote to help other creators discover it.

Been diving deep into newsletter platform pricing while building NewsletterStack, and honestly, the differences are wild.

Here's something I learned: if you're just starting out, Substack is genuinely the best choice. Why? It's completely free until you start charging subscribers. No upfront costs, no subscriber limits. You can build your audience without worrying about monthly fees.

But here's where it gets interesting. Once you hit around 5k-10k subscribers, the math changes completely. A platform that seems "cheap" at 1k subscribers might cost you hundreds more per month at scale.

And cost per subscriber isn't even the full picture. You need to consider:

• Email deliverability features
• Monetization options (paid subscriptions, ads, sponsorships, and more)
• Design flexibility and customization
• Analytics and growth tools
• Migration difficulty if you want to switch later (⚠️super important!!)

That's why I built a Newsletter Cost Calculator for NewsletterStack. Just enter your audience size and see real pricing across Beehiiv, Substack, Kit, Ghost, Buttondown, and more popular platforms, all in one place. Everything's up to date so you can actually compare apples to apples.

#BuildinPublic #NewsletterStack

I spent the last few weeks building NewsletterStack – a curated directory where newsletter creators can discover the actual tech stacks behind successful newsletters. Not just tools, but real growth strategies, subscriber counts, and what actually works.

Just launched today 🚀

It's still early (plenty more newsletter case studies coming), but I'm excited to finally get it out there. If you're building a newsletter or thinking about starting one, hope this helps you find the right stack.

Would love your feedback. Some exciting features rolling out soon.