Screen Capture

ShareX is a free, open-source screen capture and productivity tool for Windows that provides one of the most feature-rich screenshot experiences available. For OSINT investigators, digital forensics professionals, and security researchers, ShareX is a critical documentation tool for capturing, annotating, and preserving evidence from web-based investigations.

Beyond basic screenshot functionality, ShareX offers scrolling capture (capturing full-length web pages that extend beyond a single screen), region capture, window capture, and customizable workflows that automatically process screenshots after capture. For investigators documenting findings during active research sessions, the ability to automatically timestamp, name, and save screenshots to organized folders saves significant time and reduces the risk of losing documentation.

The annotation toolkit allows investigators to add arrows, text boxes, redactions, highlights, and measurements directly to screenshots before saving — essential for creating clear, presentable evidence exhibits that communicate findings to non-technical stakeholders, legal teams, or clients. The redaction tool is particularly important for obscuring sensitive information (such as witness names or personal data unrelated to the investigation) in screenshots intended for sharing.

ShareX supports OCR (optical character recognition) on captured regions, allowing text in screenshots to be extracted and copied — useful when capturing data from websites or applications that prevent text selection. Hash calculation features can generate MD5 or SHA256 hashes of screenshots, providing a basic integrity verification mechanism for evidentiary purposes.

The tool integrates with numerous image hosting services for sharing screenshots, though investigators should consider privacy implications before uploading investigation-related content to external services. Local storage is preferable for sensitive investigations.

Automated workflow features allow ShareX to automatically open, copy to clipboard, save to a specified folder, and add to upload queue — creating consistent, repeatable documentation processes that hold up under scrutiny.

Use ShareX as part of a standardized documentation protocol: consistent folder structure, timestamp filenames, and hash verification of key evidence files.