Software Alternatives & Startups

Header Editor

Add custom HTTP request headers to any site. Set Authorization tokens, override Content-Type, inject debug headers per URL pattern. declarativeNetRequest. Free: 5 rules, Pro: unlimited.

Header Editor

Header Editor Alternatives & Competitors

  1. 5

    A Powerful API Mocking and Testing Tool.

    Key Requestly features:

    Redirect URL Block Network Requests Modify Request & Response Header Modify Response

    Open Source freemium

    /requestly-alternatives
  2. 5

    Free browser extension to modify HTTP request and response headers. No sign-up. Works on Chrome, Firefox, and Edge.

    Key modheader features:

    Easy HTTP Header Modification User-Friendly Interface Profile Management Cross-Browser Support

    /modheader-alternatives
  3. Clear, Fast & Unlimited. Residential & Mobile Proxies For Best Price.

    Key ASocks features:

    HTTP Socks5 ASN targeting Pay as you go

    Try for free paid Free Trial $3 (3$ per 1 Gb) Sponsored

    Try for free
  4. 5

    An open-source ModHeader alternative trusted by 10,000+ developers. Edit and share headers with Profiles, URL filters, and a built-in tester.

    Key VibeHeader features:

    Fast header creation AI-powered generation User-friendly interface Cost-effective solution

    /vibeheader-alternatives
  5. 3

    Open-source Chrome, Firefox, and Edge extension to modify HTTP request and response headers, cookies, and local profiles for API debugging.

    Key Header Override features:

    Useful for Development Testing CORS Testing Made Easy No Server Changes Required Security Header Testing

    /header-override-alternatives
  6. 1

    A local-first ModHeader alternative: rewrite HTTP request & response headers via Chrome's native declarativeNetRequest. No backend, no account, no telemetry.

    Key HeaderFlex.app features:

    Simple sticky header solution No-code/low-code friendly Customizable design options Improves user experience

    /headerflex-app-alternatives
  7. 3

    The goal of this project is to adds information about the HTTP headers in three ways:.

    Key Live HTTP Headers features:

    Real-time Monitoring Detailed Header Analysis Browser Integration User-Friendly Interface

    /live-http-headers-alternatives
  8. 1

    Modify Header Value (HTTP Headers) is a browser extension that allows you to add, modify or remove a header for any request to your preferred domains.

    Key Modify Header Value (HTTP Headers) features:

    Custom Header Management Testing and Debugging Security and Privacy User-Agent Customization

    /modify-header-value-http-headers-alternatives
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