ShareX 20.0.4 began rolling out on May 1, 2026, just days after the initial 20.0.2 release on April 24. The open-source screenshot powerhouse for Windows has undergone its most significant transformation in years, delivering a rebuilt image editor on the Avalonia UI framework, native ARM64 support via the Microsoft Store, and a fresh wave of artificial intelligence enhancements.

The dual release signals a rapid iteration cycle. Version 20.0.2 introduced the core architectural changes, while 20.0.4 polished rough edges based on early feedback. Both are now available through the Microsoft Store, GitHub, and the official ShareX website. Users on older builds will see an in-app update notification, though the leap to version 20 demands a full reinstall due to the framework migration.

Avalonia Image Editor: A Modern Foundation

The headline feature is the Avalonia-based image editor. ShareX’s former image editor, built on the aging Windows Forms stack, had become a maintenance burden and limited cross-platform aspirations. Avalonia, a cross-platform XAML framework, replaces it entirely. The new editor boasts hardware-accelerated rendering, smoother zooming and panning, and a responsive UI that scales cleanly on high-DPI displays.

For users, the immediate difference is visual polish. Buttons and tool panels now use vector icons that stay crisp at any scaling factor. The editor launches faster and consumes less memory, a boon for machines with integrated graphics. Power users will appreciate the retained keyboard shortcuts and annotation tools, now rendered with anti-aliasing that makes arrows, boxes, and text look professional.

Under the hood, Avalonia decouples the editor from Windows-specific APIs. While ShareX remains a Windows-only application today, this move lays the groundwork for potential Linux and macOS ports in the future. The development team has long expressed interest in cross-platform support, and Avalonia is the key enabler. In the immediate term, the new editor simplifies contributions from the open-source community, as Avalonia uses familiar XAML patterns.

Several behaviors have been refined. The color picker now supports hex input alongside sliders, and the blur tool offers radius presets for common use cases. The step-by-step undo history has been replaced with a more forgiving nonlinear history, allowing users to revert specific changes without discarding later edits. Performance benchmarks shared by early testers show a 40% reduction in editor launch time on mid-range hardware.

ARM64 Native Support via Microsoft Store

Windows on ARM has needed a first-class screenshot tool for years. ShareX 20 fills that gap. While compiled ARM64 builds existed previously through sideloading or manual GitHub downloads, the Microsoft Store version was strictly x64. The 20.0.2 release introduces an ARM64 package directly in the Store, automatically served to devices like the Surface Pro X, Surface Pro 10 ARM, Lenovo ThinkPad X13s, and the latest Snapdragon X-powered laptops.

Native ARM64 execution avoids the performance penalty of x64 emulation, which could add noticeable lag when capturing full-screen or 4K regions. Early hands-on reports describe snappier response times on ARM devices, with screen recording at 60 fps now possible without dropped frames. The portable mode—beloved by users who carry ShareX on USB drives—also works seamlessly, adapting to the architecture of whatever machine it runs on.

For enterprise and education deployments, the Store listing simplifies rollout via Microsoft Intune and Windows Package Manager (winget). IT admins can push ShareX 20 to a fleet of ARM-based endpoints with a single command: winget install ShareX.ShareX will now fetch the correct architecture automatically.

AI Improvements: Smarter Captures

ShareX has gradually integrated AI-powered features over the past few years, from optical character recognition (OCR) to object detection in screenshots. Version 20 bundles updates to these capabilities. The OCR engine—powered by Tesseract 5 and augmented with machine learning models—now recognizes text in 15 additional languages, including Hindi, Thai, and Arabic, with improved accuracy for mixed-alphabet scripts.

More impactful is the new “smart region” mode. When pressing Ctrl+Print Screen, ShareX can analyze the screen content using a lightweight convolutional neural network to suggest probable capture areas—a dialog box, a chart, a code block—and snap the cursor to its boundaries. This feature, trained on thousands of annotated screenshots, reduces the tedious drag-to-crop motion for frequent captures.

On the editing side, the AI-driven background removal tool has been upgraded. It can now separate foreground objects from complex backgrounds (gradients, busy web pages) with a single click, outputting a transparent PNG or pasting directly into applications like Microsoft Teams. The underlying model runs entirely on-device, respecting ShareX’s privacy-first philosophy.

Users who rely on the “Effect” plugins will find a new “AI Enhance” effect that sharpens text in low-resolution screen grabs—ideal for documentation teams working with legacy software interfaces. The feature calculates a super-resolution pass that upscales text while preserving pixel alignment, a common pain point when resizing screenshots.

These AI features are opt-in and configurable. A new “AI Settings” tab appears in the application settings, with granular toggles for each machine learning component. Users on slower hardware can disable background removal or smart region to keep resource usage low.

Additional Enhancements and Bug Fixes

Beyond the marquee features, ShareX 20 delivers dozens of smaller improvements. The upload workflow—a core strength—now supports WebP optimization for faster sharing, with quality sliders that preview file size in real time. The built-in video recorder adopts H.265 encoding as default on Windows 11, slashing file sizes for screen recordings without sacrificing visual fidelity.

Hotkey assignments have been revised to avoid conflicts with popular new Windows shortcuts. ShareX can now bind to the Windows key + Shift + S combination, mimicking the native Snipping Tool shortcut, easing the transition for users who want a more powerful tool under the same keystroke.

Bug fixes address long-standing annoyances: the multi-monitor snapshot no longer fails when monitors have mismatched DPI settings; the “Upload to Imgur” action correctly handles two-factor authentication flows; and the URL shortener integration with Bitly has been repaired after API changes broke it in 19.x.

Community Reception

Although the official forums have yet to light up with in-depth discussions, early chatter on Reddit and GitHub issues paints a picture of cautious optimism. The most common praise centers on the ARM64 support, which prompts “finally” from Surface Pro X owners who had resorted to clunky workarounds. The Avalonia editor draws mixed reactions: power users miss some advanced annotation plug-ins that haven’t been ported, but most welcome the smoother drawing experience.

A handful of bug reports have already surfaced for 20.0.2, leading to the swift 20.0.4 hotfix. The team merged fixes for a crash when opening the editor from the system tray and a scaling glitch on ultrawide monitors. Users are encouraged to update to 20.0.4 immediately via the built-in updater or the Store.

How to Get the Update

ShareX 20 is available now from three channels:
- Microsoft Store: search “ShareX” and update, or install fresh. The Store will automatically offer the ARM64 package on compatible devices.
- GitHub Releases: download the .NET Runtime-dependent installer (ShareX-20.0.4-setup.exe) or the portable ZIP.
- Official website: getsharex.com offers direct downloads and changelogs.

Existing users on version 19.x will not receive an in-app upgrade; the framework change requires a manual uninstall of the old version and a clean install of 20. The ShareX team recommends backing up the ShareX folder in Documents to preserve custom workflows and hotkeys before migrating.

Future Outlook

The move to Avalonia signals a forward-looking strategy. The ShareX roadmap, viewable on GitHub, hints at deeper cross-platform experiments, including a native Linux build by version 21. The AI features will expand to include automated redaction of sensitive information (credit card numbers, emails) detected via on-device NLP models.

For now, ShareX 20 cements the tool’s position as the most versatile screenshot utility on Windows. The ARM64 support broadens its reach, while the Avalonia editor modernizes the user experience. As hybrid workforces increasingly rely on screen captures for asynchronous communication, these updates arrive at the right moment.