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Add, modify, and manage request headers across browser requests. HeadChanger is a lightweight, privacy-focused Chrome Extension built on Manifest V3 that empowers developers, QA testers, and security researchers to dynamically inject, update, and manage HTTP request headers on the fly. Whether you need to send custom authorization tokens (Authorization: Bearer ...), switch API environments (X-API-Version), override user agents, or test CORS and custom server logic—HeadChanger makes request header manipulation effortless. --------------- 🌐 Global & Domain-Specific Targeting: Inject headers globally across all HTTP/HTTPS requests or target specific API domains (e.g., api.example.com or localhost:8080). ⚡ Manifest V3 & High Performance: Built using Chrome's native declarativeNetRequest engine for zero performance overhead on page load times. 🔘 One-Click Toggle: Instantly enable or disable individual header rules with a single click without deleting them. ✏️ Inline Editing: Modify header names, values, or target domains effortlessly inside a sleek popup interface. 🔢 Toolbar Badge Counter: Real-time extension icon badge displays how many header rules are currently active. 🔒 Privacy-First Guarantee: 100% local storage processing. No analytics, no tracking, and no external server calls. The extension does not collect, transmit, or analyse users' browsing traffic. It only applies header modifications explicitly configured by the user
Sep 6, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.