Sizzy

The browser for developers

Stop wasting time and speed up your development workflow

Download

macOS, Windows, and Linux

Join the best

Their employees are already working faster and saving a lot of time

Everything is in sync

Scroll, click, or navigate to a different url, and all the devices will follow.

Screenshot, the proper way

Take a screenshot of the current viewport, or the entire website. You can also screenshot all devices at once. With, or without a device frame. So many possibilities!

Universal Inspect Element

Inspecting devices one by one can be a chore, so Sizzy includes Universal Inspect Element which allows you to inspect all devices at once. Nifty, huh?

Realistic Devices

Sizzy has the most accurate device simulation. It simulates the device frame, the UI for the browser & OS, and you can completely customize everything.

Screenshot, the proper way

Take a screenshot of the current viewport, or the entire device. You can also screenshot all devices at once. Try pressing the buttons.

Screenshot saved!

Speed up your workflow

1. Touch Cursor

2. Simulate network conditions

3. Simulate color scheme

4. Presets

5. Perfect for A/B testing

6. Manage Cache & Cookies

Simulate a touch cursor and use all the gestures you would use on a real device. Touch, scroll, and swipe to your heart's content!

Choose your view

Responsive

Photo

Focus

Full

Float

Zen

Preview your website on multiple devices simultaneously. Adjust the zoom, and arrange them in any layout: horizontal, vertical, center.

Built for developers

Butler

Similar to the Spotlight feature on macOS, Butler allows you to search everything in Sizzy and easily perform certain actions without touching a mouse.

Projects

Easily organize all the projects on your disk. Activate them in Sizzy, or open them in finder, explorer, or your code editor of choice.

Session Manager

Easily switch between user sessions without logging in and out manually all the time.

Software Keyboard

A software keyboard will automatically pop up whenever you are focused on an input field

Simulate Languages

Simulate a different locale for each device to test and debug different languages in your app

Social Media Preview

A live preview of how your website will look when shared on different websites or apps (Facebook, Twitter, Google, Slack, etc.)

The best developer experience

DevTools

The Sizzy DevTools allow you to inspect multiple devices at once.

Debugging Panel

The tabbed panel docked on the right side in Sizzy. It contains a bunch of useful tabs with tools that will help you with debugging your website.

Customize everything

The entire UI of Sizzy is super customizable so you can make it 100% yours.

Powerful Plugins

1. Page Navigator

2. Navigate to selector

3. Google Fonts

4. Design Mode

5. Debug Styles

Easily jump between different sections or titles within your page. All the devices will automatically scroll to it, even after refresh.

What our users say about us

Sizzy is a game changer, but don't take our word for it

Frequently Asked Questions

You have questions, we have answers!

Will I get the same result as I would on a real device?

Sizzy simulates the viewport and user agent of each device, so the results should be the same as what you would see on a real device.

However, Sizzy cannot simulate different browser rendering engines, so there's a chance that there might be some minor differences when testing on a real device.

Does the Chrome Extension still work?

Yes. Now when you click on the icon it will navigate Sizzy to the url you have opened in Chrome. You can download it here

Have a question or a problem?

Support

Twitter Facebook Privacy Terms & Conditions Roadmap Help Center

Using this website you adhere to our Privacy Policy.
In order to modify our use of cookies, select the appropriate settings on your browser.