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Header Kit

ExtensionDeveloper Tools3 users
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Item media 1 (screenshot) for Header Kit
Item media 2 (screenshot) for Header Kit
Item media 1 (screenshot) for Header Kit
Item media 1 (screenshot) for Header Kit
Item media 2 (screenshot) for Header Kit

Overview

Modify headers, cookies, query parameters, and redirects with profiles, ordered domain filters, variables, import, and export.

Header Kit is a lightweight request rule manager for web development and QA. Create separate profiles for local development, staging, auth debugging, CORS testing, cache control, or issue reproduction. Each profile can be turned on or off independently. Core features: - Modify request and response headers. - Add Cookie headers and query parameters. - Redirect matching URLs. - Scope rules by domain, URL, resource type, tab, window, or tab group. - Reuse variables and import/export profile JSON. Rules are applied through Chrome Manifest V3 declarativeNetRequest. Your configuration stays in local Chrome storage and is not uploaded to any server.

Details

  • Version
    0.2.1
  • Updated
    July 20, 2026
  • Offered by
    KitLabs AI
  • Size
    58.67KiB
  • Languages
    2 languages
  • Developer
    Email
    kitlabsai@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

Header Kit has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Header Kit handles the following:

Website content

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, please open this page on your desktop browser

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