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Modify HTTP request and response headers locally. No telemetry. Local Header Modifier lets you change HTTP request and response headers in Chrome for development and debugging — without sending your configuration or browsing data to a third-party service. Use it to: • Add or override Authorization and custom headers • Switch locales, regions, and feature flags • Test CORS, edge cases, and API behavior • Remove headers when you need a clean request Features: • Modify request and response headers (set or remove) • URL filters so rules only apply where you want • Multiple profiles for different projects • Optional comments on each rule • One-click pause for all modifications • Data stored on your device only — no analytics, no remote accounts, no phone-home Privacy: This extension does not collect, transmit, or sell your data. Header rules stay in Chrome’s local storage on your computer. There are no tracking scripts and no external servers operated by us. Perfect for developers who want ModHeader-style control with a privacy-first, auditable extension.
Jul 14, 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.