Polypane
Responsively
Sizzy
LT Browser by TestMu AI
browserling
BrowserStack
Google Chrome
TestMu AI (Formerly LambdaTest)
JackHamr
GummySearch
Brand24
F5Bot
Redreach.ai
Bazzly
Cursor
KWatch.io
Developing and designing just got easier. The most powerful browser for web developers. Available on all platforms.
Polypane shows your site in multiple viewports at once and keeps them all in sync while you work.
Develop responsive websites and apps twice as fast and get better results, because you wont be skipping screen sizes and wishing for the best.
Build higher quality websites, whether you use Wordpress, React, Angular, Svelte, Bootstrap, Drupal or any other CMS, library or framework.
Polypane has the right tools built-in for developing, debugging and testing, like devtools extensions, live reloading, accessibility testing and more.
JackHamr is the AI coding agent that ships software end-to-end. Instead of a single assistant that tries to do everything, it runs a team of specialist agents — one writes the spec, another plans the implementation, others build, test, review, and ship the code. Each agent has its own role, tools, and personality.
Agents run on hosted cloud dev environments with VS Code, Docker, SSH access, and WireGuard-encrypted networking. Close your laptop and they keep working. Talk to them with push-to-talk voice chat or type naturally. GitHub is built in — one-click clone, automatic branch-per-task, real-time commit sync, and PR creation.
Bring your own LLM keys (OpenAI, Anthropic, Google, or self-hosted) or use ours at cost — swap models mid-pipeline to use the best model for each task. Build custom orchestration pipelines and agent skills. Share agents across your organization.
Pay-as-you-go with fully itemized billing — infrastructure at cost, LLM tokens with zero markup. $10 free credit to start, no card required.
Polypane JackHamrPolypane is particularly recommended for web developers, front-end developers, UX/UI designers, and accessibility specialists who require an integrated environment for testing different screen sizes, resolutions, and accessibility features in a cohesive manner.
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Based on our record, Polypane seems to be more popular. It has been mentiond 40 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
The point isn't showing what they look like, it's that the result is randomized. Screenshots aren't, so that kind of defeats the purpose. The article starts with instructions on how to actually see and interact with the demos (the easiest is to use [Polypane](https://polypane.app)), as well as a video showing all the demos from the article running in Polypane. - Source: Hacker News / 3 months ago
We also need to talk about Source Order vs. Tab Order—they’re more different than you’d expect 👀. Source Order is the sequence of nxodes inside their parent in the DOM. Tab Order is the sequence of focusable nodes navigated using the Tab key. If a focusable element lacks tabindex, it follows a depth-first traversal of Source Order (visualized conceptually as a traversal path). Want to visualize Source Order?... - Source: dev.to / over 1 year ago
URL: https://polypane.app What it does: A browser tailored for developers, enabling real-time testing and previewing of responsive designs. Why it's great: Test your site on multiple screen sizes simultaneously for smoother cross-device optimization. - Source: dev.to / over 1 year ago
That's pretty cool! Get ready to keep these up to date monthly or become obsolete quickly. One of the downsides of tools like this is that your URL needs to be available online so if there's an issue, your iteration loop is quite long. In Polypane [1] I've built social media previews that work with any local URL but also let you overwrite that URL for the social media that display those. I built (and frequently... - Source: Hacker News / about 2 years ago
The address bar in Polypane can match URLs and page titles based on fragments. So you can type po blo 20 to get to e.g. https://polypane.app/blog/polypane-20-browser-features-and-performance/. - Source: dev.to / about 2 years ago
Responsively - Develop responsive web-apps 5x faster!
GummySearch - Audience research for Reddit
Sizzy - The browser for designers and developers
Brand24 - Brand24 is an AI-powered media monitoring tool that analyzes mentions and presents actionable insights.This tool is designed to keep track of online conversations about your brand, products, and competitors.
LT Browser by TestMu AI - LT Browser is a free dev friendly browser for developers and testers. You can see mobile view of website on different screen sizes and resolution on 50+ pre installed view ports. You can build, test and debug your website faster then ever.
F5Bot - F5Bot will send you an email whenever your brand, product, or keyword is mentioned online.