Greenshot
Lightweight screenshot tool for Windows with annotations, OCR, and image uploads.
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Use it free
Open the official tool or demo — no account needed.
Self-host it
Run the open-source version on your own infrastructure.
What is Greenshot?
Greenshot is a lightweight, open-source screenshot tool designed for Windows users to capture, annotate, and share screenshots efficiently. Its primary purpose is to streamline the process of taking screenshots of specific areas, windows, or entire screens, while offering editing and export options. The tool is particularly useful for professionals such as project managers, software developers, technical writers, and testers who require precise and customizable screenshot capabilities for documentation, collaboration, or problem-solving. Greenshot addresses the common pain points of manual screenshot-taking by providing quick capture methods, annotation tools, and integration with email, office applications, and online platforms. Its open-source nature ensures transparency, community-driven improvements, and free accessibility, making it a reliable choice for users seeking a no-cost, highly functional alternative to commercial screenshot tools.
How it works
Greenshot is a free, open-source application for Windows that enables users to capture screenshots of selected regions, windows, or full-screen views. It is tailored for users who need to create, edit, and share screenshots quickly without complex workflows. The tool’s purpose extends beyond basic capture by allowing annotations, highlighting, and obfuscation of sensitive data. Its export versatility—supporting file saves, email attachments, and cloud uploads—makes it ideal for both casual and professional use cases. Greenshot supports capturing static screenshots of windows, scrolling web pages (via Internet Explorer), and custom regions. Users can annotate images with arrows, text, shapes, and color highlights, while obfuscation tools mask confidential information. Export options include saving to files, printing, clipboard copying, and integration with email clients and cloud services like Flickr or Picasa.
How to use it
- 1Launch Greenshot and select a capture mode (region, window, or full screen). 2. Use the mouse to highlight the desired area and press 'Print' or the configured shortcut. 3. Edit the screenshot with annotation tools, adjusting text, colors, or shapes as needed. 4. Choose an export method, such as saving to a file, sending to an email client, or uploading to a cloud service. Practical tips include using keyboard shortcuts for faster capture, leveraging the 'Save to Clipboard' option for immediate pasting into documents, and organizing annotated images via the built-in file browser.
What it can do
- screen capture tool
Use cases
Assumptions and limitations
Assumptions
- source: https://github.com/greenshot/greenshot
- license: GPL-3.0 — free to use
- privacy: Self-hosted — you control your data
Limitations
- Limited cross-platform support (exclusive to Windows).
- Scrolling web page capture only works with Internet Explorer (no modern browser compatibility).
- No built-in AI-powered editing features like text recognition or auto-annotation.
- Relies on local storage; no cloud-based screenshot management or synchronization.
- Export options are constrained by third-party application integrations (e.g., Flickr).
Understanding the result
Lightweight screenshot tool for Windows with annotations, OCR, and image uploads.
Tool details
- Clearly flagged when a network request is needed.
- No account, no sign-up, and no tracking of your content.
- Powered by (GPL-3.0).
- Built with
- (greenshot/greenshot)
- License
- GPL-3.0
- Runs locally
- No — requires a network request
- Verification
- Not yet verified
- Input
- Query
- Output
- Text
Built with greenshot/greenshot. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.
- Built with
- License
- GPL-3.0
Open-source project
OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.
References
- / — GitHub Repository
Upstream project · GitHub
- GPL-3.0 License
Upstream project
Frequently asked
What is Greenshot and what problems does it solve?
Greenshot is a free, open-source screenshot tool for Windows that simplifies capturing, annotating, and sharing screenshots. It solves issues like manual screenshot-taking, lack of editing features, and limited export options by providing quick capture modes, annotation tools, and integration with email, office apps, and cloud services. Its lightweight design and configurability cater to both casual users and professionals requiring precise screenshot management.
How does Greenshot capture scrolling web pages?
Greenshot captures scrolling web pages through integration with Internet Explorer, allowing it to take screenshots of entire pages by simulating scroll actions. This feature is limited to IE and does not support modern browsers, requiring users to switch to IE for such tasks. The process involves selecting the 'Scrolling Web Page' capture mode, launching IE, and navigating to the target page before initiating the capture.
How do I annotate a screenshot with text and shapes?
To annotate a screenshot, first capture the image using Greenshot. Then, use the annotation toolbar to add text boxes, arrows, shapes, or highlights. Click the 'Text' tool, click on the screenshot, and input your notes. For shapes, select the desired tool (e.g., rectangle, circle) and drag to draw. Adjust colors, fonts, and positions using the toolbar options before finalizing the edits.
How does Greenshot compare to alternatives like Lightshot or Snagit?
Greenshot differs from Lightshot and Snagit by being open-source, free, and Windows-exclusive. Lightshot offers cloud storage and simpler workflows but lacks Greenshot’s advanced annotation tools. Snagit provides more comprehensive editing features and cross-platform support but is a paid tool. Greenshot balances functionality with accessibility, making it ideal for users prioritizing cost and transparency over premium features.
What should I do if Greenshot fails to capture a screenshot?
If Greenshot fails to capture a screenshot, check for conflicting applications (e.g., screen recording software) that may interfere with the capture process. Ensure no other screenshot tools are running. Verify that the target window is active and not minimized. For scrolling web pages, confirm Internet Explorer is set as the default browser. Restart Greenshot or your PC if issues persist.