OpenScreenShot review
A free, open-source Chrome extension for detailed webpage capture, markup, and redaction.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
OpenScreenShot is a free, open-source browser extension for capturing and annotating webpages. It suits people who document websites, including developers, QA teams, designers, writers, and support teams. Captures and edits are processed locally. The extension can capture a full webpage, the visible area, or a selected region, then copy the result to the clipboard or download it. Its focus is individual page capture and markup rather than shared team workflows.
The editor covers a broad set of annotation and cleanup tasks: arrows, shapes, lines, freehand pen, text, highlights, and numbered steps are available, alongside blur, mosaic, and opaque-fill options for obscuring screenshot content. Users can crop, spotlight, and adjust framing, then export as PNG, JPEG, WebP, or multi-page PDF. It also supports recording browser tabs, with optional microphone, tab audio, and webcam. Keyboard shortcuts and a right-click context menu provide alternate ways to start captures. This feature range makes it suitable for preparing visual bug reports, documentation, or support material without moving capture editing into a separate service.
Chrome users who want local capture and redaction tools without a paid plan have a clear fit here. The extension does not include team collaboration or measurement tools, so teams that need shared annotation workflows or measurement-focused review should look elsewhere. OpenScreenShot also offers a separate CLI and MCP server for local webpage capture, but the main browser extension is advertised for Chrome; official documentation describes a Firefox source build. Community support and documentation are the listed support channels. Choose it for free, detailed page annotation and several export formats, not for collaborative review or measurement features.
OpenScreenShot pros and cons
- Where it wins
- Captures full webpages, visible areas, or selected regions
- Offers annotation, redaction, cropping, and framing tools
- Exports PNG, JPEG, WebP, or multi-page PDF
- Where it doesn't
- Team collaboration is not included
- Measurement tools are not included
- The prominently advertised browser extension is for Chrome
OpenScreenShot fact sheet, pricing and score →
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