Sizzy AlternativesWeb Debuggers & Web Browsers like Sizzy

Apps similar to Sizzy include Responsively, which is free and open source. Other options are MultiGlancer, Polypane, Blisk and Mobile View. In total there are seven Web Debuggers like Sizzy for Mac, Windows, Linux and the web.

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Sizzy alternatives page was last updated Jun 19, 2026

Responsively
16 likes
Develop responsive web apps 5x faster! A must-have DevTool for all Front-End developers that will make your job easier.
8 Responsively alternatives
Cost / License
Free
Open Source (AGPL-3.0)
Application typeApplication types
Web Debugger
Screenshot Capture
Origin
United States
Since
Since 2020
Platforms
Mac
Windows
Linux
Microsoft Edge
Google Chrome
Firefox
United States
Good alternative?Is Responsively a good alternative to Sizzy?

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2comments
Responsively vs Sizzy Comments
Positive comment by Guest · Aug 3, 2020
Open source, Approachable and Developer friendly
Positive comment by MethodCoder · Aug 10, 2020
It's free and works just fine.
2 of 2 comments
Responsively is Free and Open SourceSizzy is Paid and Proprietary
MultiGlancer
9 likes
MultiGlancer is a minimalist and open-source tool I've developed to streamline the web development process. It allows developers to view their site on multiple web sizes simultaneously on a single screen. Born out of necessity while perfecting my landing page for ArcanePad.
Cost / License
Free
Open Source (MIT)
Application type
Web Debugger
Since
Since 2023
Platforms
Online
Good alternative?Is MultiGlancer a good alternative to Sizzy?
Polypane
4 likes
Polypane is a browser built from the ground up to create websites and apps. Polypane is the only browser that lets you develop a website for all viewports and devices at once, and gives you the best overview of them.
14 Polypane alternatives
Cost / License
Paid
Proprietary
Application typeApplication types
Web Debugger
Web Browser
Origin
Netherlands
EU
Since
Since 2019
Platforms
Mac
Windows
Linux
Netherlands
EU
+3
Good alternative?Is Polypane a good alternative to Sizzy?
Blisk
24 likes
Blisk is a browser for web developers, QA engineers, and web designers with built-in mobiles, tablets, laptops, and desktops. It provides teams and freelancers with a workspace to develop and test modern web applications twice faster.
17 Blisk alternatives
Cost / License
Freemium
Proprietary
Application type
Web Debugger
Origin
Ukraine
Since
Since 2016
Platforms
Mac
Windows
Linux
Ukraine
+3
Good alternative?Is Blisk a good alternative to Sizzy?

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1comment
Blisk vs Sizzy Comments
Positive comment by andreybakirov1985 · Jun 29, 2021
Sizzy is just a clone of Blisk that copies Blisk features
1 of 1 comments
Blisk is Freemium and ProprietarySizzy is Paid and Proprietary
Mobile View
1 like
A Chrome extension that overlays real phone and tablet frames over any live website, so you see the desktop and mobile layout side by side at the same time.
Cost / License
Free
Proprietary
Application type
Screenshot Capture
Since
Since 2026
Platforms
Google Chrome
+1
Good alternative?Is Mobile View a good alternative to Sizzy?
ScreenSize.net
Like
ScreenSize.net is a lightweight, zero-clutter web utility designed to streamline the responsive design process. Whether you are a front-end developer building layouts or a UI/UX designer verifying breakpoints, this tool provides instant, accurate data on screen resolutions, CSS...
Cost / License
Free
Proprietary
Since
Since 2026
Platforms
Online
Good alternative?Is ScreenSize.net a good alternative to Sizzy?
Responsinator
Like
Responsinator helps website makers quickly get an indication of how their responsive site will look on the most popular devices.
Cost / License
Free
Proprietary
Since
Since 2020
Platforms
Online
Good alternative?Is Responsinator a good alternative to Sizzy?