Modify Header Value (HTTP Headers) Alternatives & Competitors

Sky Live HTTP Headers is an open-source browser extension that visually displays HTTP requests and response headers from every website you visit.

Key Sky Live HTTP Headers features:

Open Source Educational Tool Transparency

WebSniffer is an online tool to outlook HTTP request and response headers.

Key WebSniffer features:

User-Friendly Interface Real-Time HTTP Request Inspection Supports Different HTTP Methods Free to Use

Create production-ready applications with zero code.

Key Modelence features:

Full-Stack JavaScript Framework Built-in Backend Services Simplified Deployment Rapid Prototyping and Development

Try for free freemium $9 / Monthly Sponsored

HTTP-Repeater (HTTP/s Live Headers) (Beta) is a browser extension that lets you capture browser requests and repeat the process in a loop automatically.

Key HTTP-Repeater (HTTP/s Live Headers) (Beta) features:

Real-Time Monitoring Debugging Tool Performance Analysis Educational Use

HTTP Header Analyzer is an open-source browser extension that allows you to see and analyze the current HTTP request and response header from the website URL.

Key HTTP Header Analyzer features:

Ease of Use Comprehensive Analysis Accessibility Free Access

HTTP-TRACKER is an advanced browser extension that allows you to examine HTTP request headers, cookies, response Headers, website data, cookies and modify request headers before sending them.

Key HTTP-TRACKER features:

User Authentication Centralized Access Activity Tracking Secure Access

A Powerful API Mocking and Testing Tool.

Key Requestly features:

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

Open Source freemium

HTTP Header Spy is a browser extension that allows you to inspect the request and response header of any website URL.

Key HTTP Header Spy features:

Ease of Use Quick Accessibility Lightweight Free to Use

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

Displays the HTTP header. Edit it and send it.

Key HTTP Header Live features:

Real-time Monitoring User-Friendly Interface Addon Compatibility Customizable Settings

Smart Header is a browser extension that lets you manipulate the HTTP request headers and response header automatically.

Key Smart Header features:

Ease of Use Customization Responsive Design Integration

20+ free tools for developers and DevOps engineers. DNS, SSL, AI log analysis, SEO, security and more. One platform, infinite possibilities. Built for infinity.

freemium $8 / Monthly

Scan your HTTP security headers (CSP, HSTS and more) and get ready-to-paste Nginx, Apache and Cloudflare fixes.

Key HeaderShield.dev features:

Security Header Focus Ease of Use Actionable Recommendations Free or Low-Cost Access

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