Dark Theme by emrek

About

Dark mode for every website — lightweight, customizable, and completely private.

  Dark Theme by emrek applies a beautiful dark mode to any website you visit. No account needed, no data collected, no network
  requests — ever. Everything stays on your device.

  FEATURES

  Two Dark Modes
  • Dark — Full inversion with pure black background. Maximum contrast, perfect for OLED screens.
  • Soft — Gentle 85% inversion with dark gray tones. Easier on the eyes for long reading sessions.

  Smart & Customizable
  • Brightness & Contrast sliders — Fine-tune the look of any page (50–150% range).
  • Per-site memory — Your preferences are saved for each website automatically.
  • Keyboard shortcut (Alt+D) — Toggle dark mode instantly without opening the popup.
  • Dark site detection — Automatically skips websites that already have a dark theme.

  Media Preservation
  • Images, videos, SVGs, and embedded content stay natural — no awkward color inversions on your photos or videos.

  Site Manager
  • View all your saved sites in one place. Toggle or remove individual site preferences with a single click.

  PRIVACY — ZERO DATA COLLECTION

  This extension is built with privacy as the #1 priority:
  • Zero network requests — the extension never contacts any server
  • Zero analytics or tracking
  • Zero third-party services
  • All preferences stored locally on your device via chrome.storage.local
  • Fully open source — inspect every line of code yourself

  TECHNICAL DETAILS

  • Built with Manifest V3 (latest Chrome extension standard)
  • Pure vanilla JavaScript — no frameworks, no dependencies
  • Content Security Policy enforced
  • All inputs validated and sanitized
  • XSS-safe DOM updates
  • Lightweight — under 50KB total

  PERMISSIONS EXPLAINED

  • activeTab — To apply dark mode CSS to the current page
  • scripting — To inject dark mode on tabs opened before installation
  • storage — To save your per-site preferences locally
  • host_permissions — So dark mode works on every website

  Open source: https://github.com/kocaemre/Dark-Theme-by-emrek