Item logo image for Overhead — HTTP Header Editor

Overhead — HTTP Header Editor

theconcept-technologies.com
5.0(

1 rating

)
ExtensionDeveloper Tools25 users
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Item media 1 (screenshot) for Overhead — HTTP Header Editor
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Item media 4 (screenshot) for Overhead — HTTP Header Editor
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Overview

Modify HTTP request & response headers. Switch environments (LIVE/DEV). 100% local, no tracking, open source.

Overhead is the header editor you can actually trust. Add, modify, or remove HTTP request and response headers while you build and test web apps — and switch whole environments (LIVE, DEV, Staging, …) with a single click. Manage everything right from the toolbar popup: quick inline editing, header-name autocomplete, and one-click templates for the headers you reach for most (Authorization, User-Agent, X-Forwarded-For, CORS, and more). Built to be trusted 100% local — your rules never leave your device. No tracking, no analytics, no ads. Ever. Open source, so anyone can verify it. Uses Chrome's declarativeNetRequest engine, so the extension can't even read your traffic — it only declares rules the browser applies. Features Request & response headers: set, append, or remove. Environment groups with mutually-exclusive switching (LIVE ↔ DEV). URL wildcard / regex / resource-type conditions. Optional per-header display labels. Import your existing ModHeader setup in one click. Light & dark, keyboard-friendly, fast. Free and open source, from theconcept technologies.

5 out of 51 rating

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Details

  • Version
    0.1.5
  • Updated
    July 22, 2026
  • Size
    71.79KiB
  • Languages
    English
  • Developer
    theconcept technologies FlexKapG
    Lödersdorf I 96/7 Riegersburg 8334 AT
    Website
    Email
    support@theconcept-technologies.com
    Phone
    +43 676 5877665
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
  • D-U-N-S
    300919329

Privacy

Manage extensions and learn how they're being used in your organization
The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

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

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