Life & fun · alternatives · 2026

Catapulty is a design utility launched in 2011 that helps designers test their work across multiple browsers. It simplifies the cross-browser testing process, making it easier to identify compatibility issues during… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Catapulty, utility for when you design cross-browser launched in 2011; newer entries below may have overtaken it.

1. 1
   Time travel debugger for web development▲681

   Automated Penetration Testing for AI-Built Apps

   2021 · replay.io · its alternatives →

2. 2
   catcatcatcaaaaaaaaaaaaat▲146

   Cats attack on your screen

   2019 · chromewebstore.google.com · its alternatives →

3. 3
   UI Replicator▲586

   Clone any website with just one click

   2024 · its alternatives →

4. 4
   Nibbler▲313

   A tool for checking your site's accessibility, SEO, & more

   2014 · silktide.com · its alternatives →

5. 5
   Browserling▲242

   Live interactive cross-browser testing from your browser.

   2015 · browserling.com · its alternatives →

6. 6
   accessScan▲272

   Test any website to see if it’s accessible, for free!

   2020 · accessibe.com · its alternatives →

7. 7
   Trible▲328

   AI-powered, no-code app & web builder

   2023 · its alternatives →

8. 8
   sitelifter▲350

   Optimize website pages faster with actionable insights.

   2025 · sitelifter.com · its alternatives →

9. 9
   BrowserTap▲70

   Cloud-based cross browser testing (pre-launch)

   2014 · its alternatives →

10. 10
    LambdaTest Chrome Extension▲191

    Cross browser testing by taking full-page screenshots

    2018 · testmuai.com · its alternatives →

11. 11
    Chromely – Lightweight Alternative to Electron for .NET and .NET Core▲143

    Build Cross Platform HTML Desktop Apps on .NET using native GUI, HTML5, JavaScript, CSS, Owin, AspNetCore (MVC, RazorPages, Blazor) - chromelyapps/Chromely

    2018 · github.com · its alternatives →

12. 12
    Cat_Editor▲61

    A basic browser based editor to create nice webpages easily

    2022 · its alternatives →

13. 13
    equa11y▲108

    A stream-lined CLI to easily test for web accessibility

    2020 · equa11y.com · its alternatives →

14. 14
    Browserbite▲135

    Automatic cross browser layout testing

    2015 · its alternatives →

15. 15
    display.dev▲183

    Last week's post from Thariq "The Unreasonable Effectiveness of HTML" went viral in X. He made a good point about HTML being the more expressive and human friendly alternative to markdown files. I completely buy in where he's coming from, I've been asking Claude Code to create me HTML files to better understand what we're planning and building together. What Thariq didn't address was the part of sharing and collaborating on these HTML artifacts (he proposed uploading to S3). While I've been heavy user of HTML artifacts to share quarterly plans, implementation specs, technical guides and…

    May 2026 · display.dev · its alternatives →

16. 16
    Webmate▲83

    Automatic cross-browser testing service for web developers.

    2015 · webmate.io · its alternatives →

17. 17TV
    Tota11y – visualize and diagnose the accessibility issues on the web▲72

    2015 · khan.github.io · its alternatives →

18. 18CJ
    Cat.js, an Animated HTML5 Cat Toy▲15

    2012 · teddyknox.me · its alternatives →

19. 19XC
    Xpressive - CSS3 Live Design Tool for Mac OSX▲84

    2013 · xpressive.org · its alternatives →

20. 20
    Selector Forge▲133

    Hi HN, I'm Ahmad from the Intuned (https://intunedhq.com) team. Today, we're releasing and open-sourcing Selector Forge (https://selectorforge.ai/), a browser extension that generates reliable CSS/XPath selectors using AI. You can use it to create a selector for a single element or for an array of elements. The selectors it creates are meant to be "semantic" and more resilient to page changes than what Chrome DevTool’s “Copy Selector” (and other similar extensions) give you. Those tend to hand you something brittle like `#top > div.w-100.ph0-l.ph3.ph4-m > h1 >…

    Jun 2026 · selectorforge.ai · its alternatives →

21. 21
    Chrome Experiments▲137

    Showcase of web experiments written by creative coders

    2015 · experiments.withgoogle.com · its alternatives →

22. 22
    Orbit, the cat▲127

    On each new tab, my cat will tell you how awesome you are.

    2018 · chromewebstore.google.com · its alternatives →

23. 23
    ChromeREPL, Interact with Chrome from Sublime Text▲102

    A Sublime Text plugin to execute JavaScript in Google Chrome - acarabott/ChromeREPL

    2018 · github.com · its alternatives →

24. 24
    Browser-based XSS scanner▲57

    This is a simple single-file python program that can find basic XSS (cross-site scripting) vulnerabilities in a target url. Most XSS discovery tools use a payload refelection strategy in which payloads are injected in url parameters and the GET response is inspected for places where the payload content is reflected. This is a very low precision XSS detection strategy because most reflection does not support execution. This program uses a different approach, and instead opens the target url in a browser, tests alert(...) payloads directly in the browser context, and listens for an alert being…

    2024 · github.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →