Snap Screen (snappy)

A lightweight, modern Google Chrome extension built with the WXT framework. It provides secure tab recording and high-fidelity video frame screenshots designed to bypass basic "soft" DRM restrictions using Chrome's tab capture and offscreen documents API.

Features

• Action Mode Transitions: Toggle between recording and frame screenshot modes.
• Subtle DRM Bypassing: Uses privileged tab capture streams (chrome.tabCapture) via offscreen documents to bypass traditional CSS/overlay screenshot blockers.
• Enhanced Screenshot Quality:
  • Automatically targets high-resolution WebRTC streams.
  • Uses high-quality canvas smoothing configurations.
  • Applies color contrast and saturation adjustments (context.filter) to correct washed-out colors common to WebRTC.
• Flexible Destinations:
  • Save screenshot to disk: Saves as WebP (at quality 0.98) to save space while retaining lossless-like fidelity.
  • Open screenshot in new tab: Renders the screenshot as a lossless PNG blob URL in a new tab, allowing convenient copy-to-clipboard or inspections.

Installation

To install Snap Screen manually in Google Chrome without using the Chrome Web Store:

1. Download the latest .zip file from the project's releases page.
2. Extract the downloaded zip file into a folder on your computer.
3. Open Google Chrome and navigate to chrome://extensions/ (or click Chrome menu -> Extensions -> Manage Extensions).
4. Turn on Developer mode using the toggle switch in the top-right corner.
5. Click the Load unpacked button in the top-left corner.
6. Select the extracted folder to load and install the extension.

How It Works

1. Right-clicking the extension icon opens the context menu where you can choose:
   • Mode: Record screen or Take a screenshot.
   • Destination: Save screenshot to disk or Open screenshot in new tab.
2. Clicking the extension button triggers the active mode:
   • In recording mode: Sets badge state to indicate active status and captures WebM video.
   • In screenshot mode: Captures the active tab stream, extracts the image bitmap using the ImageCapture API, enhances colors, and saves/opens according to destination settings.