How to Build Chrome Extension With No Code

I made a fully-working, professional-looking Chrome Extension in 2 minutes! Here's how I did it.

A free account at Kromio.ai

Chrome (or any Chrome-based browser)

(Optional) An idea for your extension—something simple like “word counter” or “dark mode toggle” works great for a first test

Just type your idea into the Kromio prompt box.

Example:

“I want a Chrome extension that counts the words on any webpage.”

Hit Generate and let Kromio do its thing.

Then click the "Download ZIP" button after your new extension is created.

Download the ZIP file.

Then extract the ZIP file (to your Downloads folder is fine for now).

This part takes about 30 seconds:

1. Open chrome://extensions in your browser
2. Flip on Developer Mode toggle switch (in the top right corner)
3. Click Load Unpacked and select the folder you extracted from the ZIP File you downloaded from Kromio.

Now your extension is live in Chrome!

You should see your extension listed in your list of installed Extensions.

At this point, you should PIN your new Chrome Extension for easy access. Here's how:

1. Click the Extensions icon (it looks like a puzzle piece 🧩) on the top right of your Chrome browser, next to your profile picture.
2. Find the extension you want to pin in the dropdown list.
3. Click the pin icon (📌) next to the extension's name. It will turn blue or highlighted to show it's pinned, and the extension's icon will immediately appear on your toolbar.

Click the extension’s icon and give it a spin.

💡 Pro tip: If something’s acting weird, right-click → Inspect → open the Console. That’s where Chrome shows error messages (super helpful for quick debugging).

One of the best things about Kromio is that you can REVISE extensions.

While you're viewing an extension, just click the "Revise" button.

Then tell it what change you want it to make.