HeaderCraft Pro: Fast & Private MV3 Request

Privacy-first, ultra-lightweight API HTTP Header & Query parameter manipulator built on Manifest V3.

🚀 ＨＥＡＤＥＲＣＲＡＦＴ ＰＲＯ: 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗡𝗲𝘁𝘄𝗼𝗿𝗸 𝗖𝗼𝗻𝘁𝗿𝗼𝗹 Take absolute control of your browser’s HTTP request and response lifecycle. Designed specifically for developers, QA engineers, and security researchers. Built on Manifest V3, HeaderCraft Pro compiles your rules directly into Chromium’s native declarative network engine (declarativeNetRequest). ZERO latency overhead, ZERO system bloat, and maximum performance. ✨ 【 ＫＥＹ ＦＥＡＴＵＲＥＳ 】 ✅ REQUEST & RESPONSE HEADERS: Full control over both outgoing HTTP Request Headers and incoming Response Headers. ✅ MULTI-RULE ENGINE: Add and edit multiple header or query parameter modifications per URL wildcard pattern (e.g. *://localhost/*). ✅ QUERY PARAMETER MODIFIER: Dynamically set, append, or remove URL query parameters alongside HTTP headers. ✅ INSTANT PROFILES: Create multiple environments (Dev, Staging, QA) and switch between them instantly. ✅ SMART CACHING & SANITIZATION: Zero-latency local caching, auto-trimmed inputs, and instant rule synchronization. ✅ TEAM SHARING: Easily Import & Export full profiles as portable JSON files. ✅ PRIVACY-FIRST & ZERO-PERMISSION INSTALL: Grant domain access selectively and on-demand. 🛡️ 【 ＰＲＩＶＡＣＹ ＆ ＰＥＲＦＯＲＭＡＮＣＥ 】 ❌ NO remote servers or tracking. ❌ NO telemetry. ✅ 100% PRIVATE: Blind and sandboxed until you explicitly authorize domain permissions. ✅ NATIVE SPEED: Executed natively by Chrome's C++ network engine. --- Professionals choose HeaderCraft Pro for robust, low-level browser network control.