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Description
Modify HTTP request headers with switchable profiles, URL filters, and JSON export/import for sharing setups with your team. HeaderDeck rewrites HTTP request headers right inside Chrome's network stack, organized the way engineering teams actually work: as named profiles you flip on and off. FEATURES • Set, append, or remove any request header • Profiles — group headers into sets (e.g. "Beta", "Perf test") and toggle each set with one switch • URL filters — scope a profile to specific hosts or wildcard patterns (*.example.com); leave empty to apply everywhere • Export / import — share your exact setup with teammates as a JSON file • Pause all — one click suspends every profile without losing its switches • Badge counter shows how many headers are active right now PRIVACY HeaderDeck uses Chrome's declarativeNetRequest API, which means header rules are handed to the browser itself — the extension never reads, intercepts, or transmits your traffic. All profiles are stored locally on your machine. No analytics, no remote servers, no data collection of any kind. Made for QA engineers, backend developers, and anyone who juggles beta/staging/production environments all day.