Header

VKT Header

Domain-matched HTTP request header modifier. Rules match by domain (case-insensitive) and apply to every tab. Session rules auto-clear on browser restart.

Chromium · MV3 · Header Modifier

🆓 Free Features

  • Domain matching — Rules match by domain only (case-insensitive), paths ignored
  • Global rules — Empty Match URL applies to all requests
  • Rule system — Save multiple header configurations as rules
  • Auto re-apply — Enabled rules automatically re-apply on browser start
  • Session rules — Uses declarativeNetRequest session rules (MV3)
  • 6 languages — Auto-detected from browser settings

⭐ Advanced Features (License)

Monthly $2.99/mo or One-Time $9.99 via Creem

  • Unlimited rules — Free tier limited to 5 rules
  • Import / Export — Share templates across devices
  • Regex URL matching — Advanced pattern-based URL binding
  • Priority support

See VKT Pricing for license options. Single tool from $2.99/mo or $9.99 lifetime.

Installation

  1. Visit the Chrome Web Store page for Header
  2. Click Add to Chrome and confirm
  3. Click the 🌐 Header icon in your toolbar to start

Privacy

  • ✅ Zero data upload — all processing locally
  • ✅ No analytics, no tracking
  • ✅ Session rules auto-clear on browser close
  • ✅ Only declarativeNetRequest + storage permissions
Install for Edge View on GitHub

For questions: [email protected]