Duo

Duo for PC and Mac

Published by Electric Pulp on 2024-02-08

  • Compatibility: Available on Windows 11, Windows 10, Windows 7 & MacOS 10, 11, 10.8
  • Category: Developer Tools
  • Licence: $4.99
  • Software version: 1.3
  • File size: 1.59 MB


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Duo Overview

What is Duo? Duo is a web browser designed for Responsive Web Design (RWD) that allows users to browse the web in two views simultaneously - a standard desktop view and a typical mobile view. This feature enables designers, developers, project managers, and clients to test and work through multiple screen experiences quickly. Duo includes an adjustable mobile view, an adjustable tablet/desktop view, synchronized browsing, Webkit dev tools, convenient key commands, LiveReload support, and a handy bookmarklet. However, Duo is not designed for user-agent sniffing and only refreshes both views for GET requests. Users can contact the support team via email or Twitter for assistance.


Screenshots

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Duo Features and Description

1. Duo is a dual-paned web browser built for Responsive Web Design (RWD) that lets you browse the web in two views: your standard ‘desktop’ view as well as a typical ‘mobile’ view.

2. Whether you’re a designer or a developer, project manager or client, Duo gives you a new tool to make your Responsive Web Design project go more smoothly than ever.

3. Duo gives you an adjustable mobile view using the left pane.

4. The right pane defaults to an adjustable tablet / desktop view.

5. By seeing these two views at the same time, you’re able to quickly test and work through multiple screen experiences rather than considering them separately.

6. No need to reload layouts to view pages at different sizes.

7. Duo includes tools for clearing your cache and getting rid of those pesky cookies via standard key commands.

8. Duo is designed for Responsive Web Design, not for user-agent sniffing.

9. It's probably not a good fit for your POST refresh heavy project, although we are actively looking at ways to accommodate this.

10. Navigating in either pane updates the other.

11. Duo has everything you need to make sure your design is doing what it should.



Pros:

  • - It's a great screening tool for use during development before you run tests on real testing tools like BrowserStack or Sauce Labs.
  • - Supports full-screen mode.
  • - Lightweight browser for prototyping two screen sizes at once.
  • - Works with LiveReload and Browsersync.
  • - Has an inspector.

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PC Alternatives:
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MAC Download:
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Installation Requirements

PC Compactibility/Requirements for Installation

Compactible OS list:
  1. Windows 11
  2. Windows 10
  3. Windows 8.1
  4. Windows 7
  5. Windows Vista

Requirements for MacOS Installation

Intel, 64-bit processor, OS X 10.7 or later.

Compactible OS list:
  1. macOS Ventura: 13.3
  2. macOS Monterey: 12.6.4
  3. macOS Big Sur: 11.7.5
  4. macOS Catalina: 10.15
  5. macOS Mojave: 10.14
  6. macOS High Sierra: 10.13

FAQs

Duo - Is it safe to download?

Yes. The app is 100 percent (100%) safe to download and Install. Our download links are from safe sources and are frequently virus scanned to protect you

Software Reviews and Criticism

  • By I amStacy

    Application does as advertised. A great way to quickly test multiple screen sizes.

    Love the fact this has live reload support now. Duo has become a super handy tool to quickly test how things will look on multiple screensizes. It has a built in inspector, like Safari’s dev tools (which are prettier than Chrome’s IMO, but not as extendable… but I love how Safari can display minified CSS as expanded). Just a suggestion or wishlist item: I wish I could add it to my Alfred Workflow, not sure what would need to happen to add Duo to the "Open URL with” option. Maybe it is already doable and I am not accessing it correctly?


  • By neut

    Still working in Sierra

    Lightweight brwoser for protyping two screen sizes at once. Works with LiverReload and Browsersync. One unfortunate rendering problem caused me some grief. There is an issue with `border-radius` rendering. You’ll see a small gap between the `border` and the `background-color`. This is a bug not work chasing, so do not expect to use Duo as a QA tool. This is merely a quick prototyping tool. It’s unfortunate that it’s not maintained as it’s being taken over by the Chrome plug-in, Pointbreak.


  • By pgp

    Almost there ...

    I love the simple user interface. And this really helps when previewing fully responsive sites; but if also let you set the user agent … that would make it complete, to me.


  • By fablau

    Not real mobile view, very limited options...

    Just purchased and tried, here is what I found wrong: 1. The mobile view gives you a “frame” of your website, and not the “real view” of it on a real mobile device. In other words, on my mobile phone I can see my complete website page, reduced in size of course, fitting the full screen, whereas on this program I can see just a portion of the screen without size reduction which is not the real view you get on a mobile device. 2. There is no way to access any settings to target specific screen devices. I really expected that! For me, this app is useless and deceptive. To test my website for repsonsive design, I am going to use a real device.


  • By Ryan-in-Miami

    Great screening tool — not a replacement for real testing

    I build and do QA on a lot of web sites and I love this thing. It’s not a replacement for a real testing tool like BrowserStack or Sauce Labs, but it’s a great screening tool for use during development before you run tests on real testing tools like that. I was a little nervous when I bought it that it hasn’t been updated in a while, but it works fine in El Capitan. Supports full-screen mode. I agree with another reviewer that it would be even better if you could manually set the user agent string. With a list of common pre-sets. That would make it five stars. It’s still useful without that. There is a “resize pane” button with a drop-down selector that you can add with “customize toolbar”. That really should be included in the toolbar by default.


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