SnapCrop — Screenshot Crop & Annotate Tool

About

SnapCrop lets you crop any area of any browser page — PDFs, docs, web apps, dashboards — and instantly copy the cropped image to your clipboard. No more full-page screenshots followed by manual cropping in an image editor.

HOW IT WORKS

1. Click the SnapCrop icon or press Alt+Shift+S
2. Drag to select any area — crosshair guides help you align precisely
3. Release the mouse and the cropped image is auto-copied to your clipboard
4. Paste directly into your notes, slides, docs, or chat

FEATURES

- Precision crop with crosshair guides and live pixel dimensions
- Auto-copy to clipboard on mouse release — no extra clicks needed
- Annotation tools: pen, arrow, rectangle, highlight, and text labels
- Multi-region capture: select multiple areas and combine into one image
- Adjustable padding slider with real-time preview
- Double-click overlay to capture the entire visible page
- Snapshot history saved in popup for quick re-copying
- Drag-and-drop any PDF file onto a tab to open and crop
- Keyboard shortcut (Alt+Shift+S) to capture without opening the popup
- Full dark mode support — automatically matches your system theme
- Download cropped images as PNG files

WORKS ON ANY PAGE

SnapCrop works anywhere your browser can go: PDF documents, Google Docs, Notion pages, Confluence wikis, dashboards, web apps, email, and any website. If you can see it in your browser, you can crop it.

USE CASES

- Students: crop diagrams, charts, and formulas from textbooks and lecture PDFs
- Developers: capture UI bugs, error messages, and code snippets
- Designers: grab reference screenshots and annotate feedback
- Researchers: extract figures and tables from academic papers
- Anyone: quickly share a visual snippet without a full screenshot

PRIVACY

SnapCrop does NOT collect, transmit, or store any personal data. All processing happens locally in your browser. Screenshots never leave your device. No analytics, no tracking, no accounts required.

PERMISSIONS EXPLAINED

- activeTab: Capture a screenshot of the currently visible tab when you activate SnapCrop
- scripting: Inject the crop overlay UI onto the active page
- storage: Save your snapshot history and preferences locally
- clipboardWrite: Copy cropped images to your system clipboard

SnapCrop is free, open-source, and lightweight. No sign-up required.