icon_128

A chrome extension to help you edit the web

Simply tell Ninja what you want to change, and it'll ask more questions before building you a snippet

Perfect for building a proof of concept, mockups, A/B tests, or simply adding something to your page.

Who is Browser Ninja for?

Whether you're building something, creating a proof of concept
or automating workflows, Browser Ninja will make the web work better for you

33

Product Managers

Communicate design ideas visually with working prototypes. If you know how to use devtools you can get a significant way there before committing resources.

44

UX/UI Designers

Test design concepts directly on live sites. Copy paste your figma snippets directly to see how components feel in-situ.

22

Curious Tinkerer

Change what you see and how you interact with your websites. The convenience of scripts right in-situ cannot be understated.

55

Power Users

Customize your favorite websites to work exactly how you want. Remove distractions, simplify repetitive tasks, create genius snippets that help your browsing experience.

22

Frontend Developers

Build tests faster with live element inspection and instant code generation. Perfect for complex mutation observers, component extraction, and rapid prototyping.

66

Digital Agencies

Speed up client presentations and approval cycles. Create snippets that can be demonstrated to clients during calls iterate on feedback in real-time.

See what you can do with Browser Ninja

Airbnb
A snippet which appends the price in 'per person per night' to help organise group bookings
Four prompts
Grocery retailer
A snippet which makes the search bar sticky and always visible while building a cart
Six prompts
LinkedIn
A snippet which auto-expands all 'see more' buttons on job posts for faster scanning
Three prompts
YouTube
A snippet which hides all comments and suggested videos for distraction-free watching
Two prompts
Amazon
A snippet which highlights products with the best reviews and hides sponsored listings
Five prompts
Twitter/X
A snippet which auto-hides promoted tweets to keep the feed clean
Two prompts
Notion
A snippet which auto-collapses all toggles on page load for a cleaner workspace
Three prompts

Why you should use Browser Ninja

Saves so much time! Just Point, Click, Chat & Save!

Screenshot 2025-08-31 122559

Point & Click

Pick items and it'll know what to do with them. If not, Ninja knows how to gather more info!

Screenshot 2025-08-31 122630

Boosted Productivity

Generate snippets and supercharge your productivity. Reduce days of tweaking custom code snippets down to a few prompts.

Screenshot 2025-08-31 122635

Ninja has been well trained

Ninja comes with a detailed system prompt that has best practices for snippets. Meaning they'll work for professional release too!

Instructions

Get started in minutes

1

Pick Elements

Highlight any element in your devtools that you want to modify.

2

Generate Snippets

Chat about your elements and Ninja will give you snippets to run.

3

Save & Run Code

Execute snippets directly from the chat, and save snippets to auto-run the next time you visit.

Yes, it's that easy!

  1. Get the Chrome extension download (as a .zip) and extract to a folder.
  2. Visit chrome://extensions/ and toggle on the 'Developer Mode' (top right corner)
  3. Click 'Load unpacked' (top left corner) and select your extracted folder.
  4. Optional - Pin the chrome extension's icon.
  5. Press the ninja extension icon on a webpage you want to edit!
  6. Using the extension is easy - simply add your api key, attach context to your chat by capturing your elements, and explain what kind of snippet you'd like.