Top Viewport Sizer Alternatives for Web Designers and Developers
Viewport Sizer is a free and convenient tool that allows web designers and developers to quickly measure viewport dimensions across various devices, aiding in the fine-tuning of designs for specific screen sizes. However, for those seeking more robust features, broader platform support, or integrated development workflows, exploring a Viewport Sizer alternative can significantly enhance productivity. This article dives into the best alternatives that offer diverse functionalities, from comprehensive screenshot tools to advanced design utilities.
Best Viewport Sizer Alternatives
While Viewport Sizer excels at its core function of displaying viewport dimensions, many users require tools that go beyond simple measurement. The alternatives listed below offer a range of capabilities, including advanced screenshot features, image editing, and integration with other design and development processes, making them excellent choices for expanding your toolkit.

ShareX
ShareX is a powerful, free, and open-source program available on Windows, Chrome, Steam, and Firefox. It's an excellent Viewport Sizer alternative due to its extensive screenshot capabilities, including scrolling capture, built-in image editor, and automatic upload features, making it ideal for capturing and annotating design elements across various screen sizes.

Greenshot
Greenshot is a small, open-source screenshot tool for Mac and Windows. While Freemium, its core features are free and include support for OCR, Office export, and image annotations. It's a great Viewport Sizer alternative for quick screen captures and basic edits, allowing designers to easily document and share visual aspects of their responsive designs.

LightShot
Lightshot is a free and easy-to-use screen capture tool available for Windows, Mac, Chrome, Wine, and Firefox. It stands out as a Viewport Sizer alternative with its automatic online uploading for sharing and its instant editing capabilities, making it simple to quickly capture, annotate, and share specific viewport layouts.

Snipping Tool
Bundled free with Windows, the Snipping Tool is a simple and reliable Viewport Sizer alternative for capturing screen shots. It allows users to quickly snip any object on their screen, annotate, save, or share the image, providing a basic but effective way to document viewport states.

Snagit
Snagit is a commercial screen capture and recording tool for Mac and Windows. It's a comprehensive Viewport Sizer alternative offering advanced features like scrolling capture, freeform capture, and extensive editing capabilities, making it ideal for creating engaging visuals of responsive designs and user flows across various screen sizes.

PicPick
PicPick is a free personal use tool for Windows and PortableApps.com, featuring a full-featured screen capture, intuitive image editor, and various graphic tools. Its scrolling capture and customizable features make it a strong Viewport Sizer alternative for designers needing more than just basic viewport measurement, allowing for detailed capture and editing of responsive layouts.

Evernote Web Clipper
Evernote Web Clipper is a free browser extension for Chrome, Safari, Firefox, Opera, and Microsoft Edge. It allows users to save any online content, including text, links, and images, directly into their Evernote account. As a Viewport Sizer alternative, its ability to take website screenshots and annotate them is invaluable for documenting and sharing design iterations.

FastStone Capture
FastStone Capture is a powerful yet lightweight screen capture tool for Windows. While it has a commercial license, a free personal version is available. It's a robust Viewport Sizer alternative with features like screen recording, image annotations, and the ability to capture anything on the screen, including scrolling windows, perfect for comprehensive design documentation.

CloudApp
CloudApp is a Freemium screenshot editing and video screen recording software available for Mac, Windows, and Web, with integrations for Jira, Trello, and Zendesk. It's an excellent Viewport Sizer alternative for teams, offering GIF recording, automatic upload, custom domains, and integrated file sharing for collaborative design review and feedback on responsive layouts.

Skitch
Skitch is a Freemium screenshot editing and sharing utility for Mac, iPhone, and iPad. It allows users to add shapes and text to an image and share it online or sync with Evernote. As a Viewport Sizer alternative, its instant editing and elaborate sketching and annotation features are highly beneficial for quickly highlighting and communicating design issues related to viewport sizes.
Ultimately, the best Viewport Sizer alternative depends on your specific needs. Whether you prioritize advanced screen capture, comprehensive editing, seamless sharing, or team collaboration, the options above provide a diverse range of functionalities to enhance your workflow. Explore each one to find the perfect fit for your design and development tasks.