Open-source screen capture and file sharing tool with recording, editing, and annotation features. Supports 4K, dark mode, theming, offline use, and offers a lightweight, ad-free experience without tracking user data.




Viewport Sizer is described as 'Free tool for measuring viewport dimensions across any device. Simply visit the website to view your current viewport size. We've also compiled a list of all known modern devices, phones & tablets with all screen size specifications' and is an website. There are more than 50 alternatives to Viewport Sizer, not only websites but also apps for a variety of platforms, including Windows, Mac, Google Chrome and Linux apps. The best Viewport Sizer alternative is ShareX, which is both free and Open Source. Other great sites and apps similar to Viewport Sizer are Greenshot, PicPick, Snipping Tool and FastStone Capture.
Open-source screen capture and file sharing tool with recording, editing, and annotation features. Supports 4K, dark mode, theming, offline use, and offers a lightweight, ad-free experience without tracking user data.




Lightweight screenshot tool offering OCR, exports to Office apps and online storage, integration with external commands, supporting 32 languages and minimal space requirement.




Provides versatile screen capture options, built-in image annotation, color picking and palette, precision measurement tools like ruler and protractor, hotkey customization, clipboard and multi-format support, simple tray access, sharing, and portable operation.




Snipping Tool is a screen capture utility that allows users to take screenshots of specific objects or full screens, annotate them, and save or share the captured images or videos.




A powerful, lightweight, yet full-featured screen capture tool that allows you to easily capture and annotate anything on the screen including windows, objects, menus, full screen, rectangular/freehand regions and even scrolling windows/web pages.


Advanced screen capture and recording tool enabling image or video captures directly from your screen. Includes editing features like callouts, transparency, and effects to enhance visuals. Organize and easily share creations through documents, presentations, or favorite applications.




Captures selectable screen regions for Windows and Mac, offers instant uploading, quick editing, and sharing through short URLs, supports saving locally, annotating, clipboard copying, browser add-ons, upload history access, and operates without heavy system use.




Spectacle is a simple application for capturing desktop screenshots. It can capture images of the entire desktop, a single monitor, the currently active window, the window currently under the mouse, or a rectangular region of the screen.

Save anything you see online - including text, links and images - into your Evernote account with a single click.

Capture and record screens on Mac with CleanShot X, featuring seamless recording, custom keyboard shortcuts, customizable wallpapers, Quick Access Overlay, and Desktop icon toggle for a tidy user interface.




Comprehensive screenshot and screencast tool offering full-screen, window, or region captures with a built-in editor. Supports cropping, resizing, labels, and effects, with integration for popular services. Free version includes some branding and is limited to 15s screen casts.




Capture full and partial screenshots, record screen or webcam videos with extensive editing tools, including annotations, video conversion to gif/mp4, and sharing options. Create step-by-step guides enhanced by AI, save in multiple formats, and utilize cloud storage integration.



