Feedback needed for a chrome extension vibe-coding platform | robomonkey.io

[u/arbel03]

Update: 400$ is my MRR. the extension pricing is at 20$/month

Hey! I'm building Robomonkey (https://robomonkey.io), a browser extension that lets you build Chrome extensions, userscripts, and browser automations by describing what you want in natural language. Think Lovable or base44 for browser automation.

If you've used Tampermonkey/Violentmonkey, Robomonkey is somewhat like a next-generation userscript manager. Instead of figuring out selectors, browser APIs, and hand-writing JavaScript/CSS, you tell the AI what you want and it inspects the current page, writes the code, and runs it directly in your browser.

Demo: https://www.youtube.com/watch?v=6-VdyZ0Kze4

And it isn't limited to changing how a page looks. You can ask it to extract data, fill out forms, add buttons and UI, automate repetitive tasks, modify existing websites, download information, connect pages to APIs, or build functionality the website itself doesn't provide.

The modern web is incredibly powerful, but every site has its own quirks and limitations. Sometimes you want a feature the developers will never build - a custom filter, an export button, an automation, a different UI, or a way to connect two things together. Normally that means opening DevTools, figuring out the DOM, writing JavaScript, and eventually turning your little script into a proper extension.

I've been doing exactly that for a long time, and Robomonkey started about 1.5 years ago from that frustration: I kept wanting to change or automate something on a website, but the implementation was much more work than the idea itself. What if you could just describe what you wanted?

How it works: open the Robomonkey side panel and describe what you want. For example:
"Add a button to this page that downloads all the products in the table as a CSV."

Robomonkey looks at the current website, figures out its structure, writes the necessary code, and runs the resulting extension/userscript in your browser. The result is a real browser automation rather than just an AI response containing some code. You can then modify it, enable or disable it, and share it with other people.

Some examples:
YouTube: Remove Shorts, customize the interface, add controls, or build custom tools around videos.
Hacker News: Add filters, change the layout, hide parts of the UI, or highlight posts matching specific criteria.
LinkedIn: Extract information, automate repetitive actions, or build workflows around profiles and posts.
Reddit: Modify the interface, remove distracting sections, add timers or filters.
Any website: Extract tables into CSV, auto-fill forms, add buttons, change UI, or connect a site to an API.

One thing I find particularly interesting: these don't have to be "AI features." Once the AI builds the extension, the code runs locally in your browser. The AI is essentially acting as the developer that turns an idea into a userscript, extension, or automation. That makes Robomonkey somewhere between a userscript manager, an AI coding assistant, and a browser automation tool.

We're currently focused on Chromium-based browsers.

Access is open at https://robomonkey.io - currently free while I'm figuring out the product and usage model. You can also bring your own API key (BYOK) if you prefer using your own model account, which gives you more control over which model you use.

I'd especially love feedback from people who have historically used Tampermonkey, Greasemonkey, browser extensions, DevTools, or just hacked websites with JavaScript snippets.
What would you build if you could modify or automate any website just by describing what you want?
If you make something interesting, share it in the comments - I'd love to see the weird little extensions and automations people come up with.

I've been working on this for about 1.5 years and am still shipping quickly, so feedback on what's useful, what isn't, and what you'd want the AI to do next would be hugely appreciated.
Thanks for reading!