Greenshot

Greenshot is a free, open-source screenshot utility for Windows. It suits people who regularly capture and explain visual details in project work, development, technical writing, or testing. Its appeal is a straightforward capture-to-sharing workflow without a software charge; its clearest limitation is the Windows-only platform.

Overview

Region, window, and fullscreen capture cover the usual needs, from isolating a control to preserving the whole screen. Annotation and highlighting help make images useful in bug reports or instructions, while obfuscation can conceal portions before an image is shared. OCR text extraction adds another practical option when a screenshot contains text someone needs to retrieve.

For long pages, Greenshot can capture scrolling web pages in Internet Explorer. That browser-specific scope makes it a poor fit if scrolling capture is central to work in another browser. Captures can be saved as PNG or JPEG, or sent to the clipboard, printer, email, Office, and photo sites including Flickr and Picasa.

Key features

• Three capture modes: Region, window, and fullscreen capture give users useful control over how much context an image includes, without requiring separate capture tools for these common cases.
• Markup and obfuscation: Annotation and highlighting make a capture easier to interpret; obfuscation is valuable when a screenshot includes details that should not be exposed.
• OCR: Text extraction broadens the tool beyond image sharing, especially for users who need to work with words visible in a capture.
• Multiple destinations: File, clipboard, printer, email, Office, and photo-site output support different handoff habits. PNG and JPEG are the stated export formats, so readers who require other formats should look elsewhere.

Pricing

Greenshot is free and open source. The Free plan costs nothing and includes screenshot capture, image annotation and editing, and export to files, the clipboard, printer, and email. Greenshot for Windows is also free and is described as free and open source for Windows. There is no paid feature tier to weigh against a restricted free plan.

A $1.99 as a one-time cost contribution is offered to help cover the project's own costs. It is a contribution rather than a separate feature plan; the software remains free.

Platforms

Greenshot is for Windows PCs. That focus suits Windows users who want a desktop capture and annotation workflow, but rules it out for people who need a native tool on another operating system. The latest stable Windows release is version 1.3.315, dated 20 Mar 2026.

Who it's for

Project managers, developers, technical writers, and testers are the natural audience: each can use a quick capture, add explanation or concealment, then pass the result along through familiar destinations. It is also a sensible choice for anyone who wants open-source screenshot software at no charge. Users who depend on scrolling capture outside Internet Explorer, or need a non-Windows platform, should choose another tool.

Pros and cons

• Pro: Capture, annotation, highlighting, and obfuscation sit in one workflow, which is useful when screenshots need to explain a problem or process before they are shared.
• Pro: The free, open-source offering includes core capture and editing rather than placing those basics behind a paid plan.
• Pro: OCR and several export destinations cover more than simple image saving.
• Con: Scrolling web capture is scoped to Internet Explorer, limiting its relevance for other browser workflows.
• Con: Windows is the sole supported platform, so it cannot serve cross-platform teams as a shared native tool.
• Con: PNG and JPEG are the stated export formats, a constraint for workflows that require a different image format.

Alternatives

ShareX is another free, open-source Windows option; choose it if you want an alternative with no account required.

Awesome Screenshot is worth considering if you need browser-extension, iOS, macOS, web, or Windows access, and can work within its free allowance of 100 screenshots, 20 recordings, up to six hours per recording, 720p, and three-day trash recovery.

Screenpresso may fit better if HD video capture matters alongside images; its free plan includes branding on video and sharing, plus a limited image editor.

Flameshot is a free, open-source option for Windows, macOS, and Linux.

PicPick is an alternative to consider if you want screen capture alongside image editing and design tools.

Monosnap is another freemium option, with a free tier that includes one user, 2 GB of storage, a 100 MB single-file upload limit, and five minutes of video recording.

Markup Hero is a fit for users who want screenshot annotation with sharing and export, but its Forever Free plan is capped at 25 screenshots and history.

ScreenAI is an alternative for readers seeking a free tier that combines capture, annotation, OCR, and PNG/JPEG/PDF export across Windows, macOS, and Linux.

For a broader comparison, browse Screenshot Annotation Software, Screenshot Software, or Screen Capture Software.

Verdict

Choose Greenshot if you use Windows and want a no-cost, open-source tool that can capture, mark up, obscure, and distribute screenshots in one workflow. Its strongest reason to choose it is that breadth at no charge; look elsewhere if you need another platform or scrolling capture beyond Internet Explorer.