Software Alternatives, Accelerators & Startups

Live HTTP Headers VS modheader

Compare Live HTTP Headers VS modheader and see what are their differences

Live HTTP Headers logo Live HTTP Headers

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

modheader logo modheader

Free browser extension to modify HTTP request and response headers. No sign-up. Works on Chrome, Firefox, and Edge.
  • Live HTTP Headers Landing page
    Landing page //
    2019-03-23
  • modheader Landing page
    Landing page //
    2026-08-19

Live HTTP Headers features and specs

  • Real-time Monitoring
    Live HTTP Headers allows users to monitor HTTP traffic in real-time, which helps in debugging and understanding how webpages interact with the server.
  • Detailed Header Analysis
    The tool provides comprehensive details of HTTP headers, making it easier to analyze and troubleshoot specific issues with HTTP requests and responses.
  • Browser Integration
    Live HTTP Headers integrates directly with web browsers like Firefox, providing a convenient way to access header information without needing external tools.
  • User-Friendly Interface
    The extension provides a straightforward and easy-to-use interface that can be navigated by users with varying levels of technical expertise.

Possible disadvantages of Live HTTP Headers

  • Limited to Specific Browsers
    As an extension primarily for Firefox, Live HTTP Headers may not be as versatile for users of other browsers without similar support.
  • Outdated Components
    The development and updates for Live HTTP Headers have been limited, which may lead to compatibility issues with newer browser versions or standards.
  • Less Feature-Rich Compared to Alternatives
    Newer tools and extensions, such as the Chrome DevTools, provide more advanced features beyond basic HTTP header inspection.
  • Security Concerns
    Since the extension has access to HTTP traffic, there's a potential, albeit low, risk that it could be exploited or become vulnerable if not properly maintained.

modheader features and specs

  • Easy HTTP Header Modification
    ModHeader allows users to easily add, modify, or remove HTTP request and response headers directly from the browser without needing to write code or set up a proxy server.
  • User-Friendly Interface
    The extension provides a simple, intuitive UI where users can create profiles, toggle headers on/off, and manage multiple header configurations with minimal technical knowledge.
  • Profile Management
    Users can save multiple header profiles for different testing scenarios (e.g., different environments, authentication tokens, or user agents) and switch between them quickly.
  • Cross-Browser Support
    ModHeader is available for major browsers including Chrome, Firefox, and Edge, making it versatile for developers who work across different browser environments.
  • Useful for Development and Testing
    It's particularly helpful for developers and QA testers who need to simulate different API keys, test CORS configurations, spoof user agents, or debug header-related issues without modifying server code.

Possible disadvantages of modheader

  • Browser Extension Limitations
    As a browser extension, ModHeader only affects requests made through that specific browser, meaning it cannot modify headers for requests from other applications, mobile apps, or backend services.
  • Security and Privacy Concerns
    Browser extensions with permissions to read and modify web requests pose potential privacy and security risks, as they can technically access sensitive data transmitted through the browser.
  • Premium Features Behind Paywall
    Some advanced features, such as more complex header rules or higher usage limits, may require a paid subscription, limiting functionality for free-tier users.
  • Limited to Client-Side Testing
    ModHeader cannot be used for server-side header manipulation or automated testing pipelines, making it less suitable for CI/CD integration compared to command-line tools or API testing frameworks.
  • Potential for Misconfiguration
    Users unfamiliar with HTTP headers might inadvertently create conflicting or invalid header configurations that cause unexpected application behavior or debugging confusion.

Category Popularity

0-100% (relative to Live HTTP Headers and modheader)
Developer Tools
40 40%
60% 60
Software Development
100 100%
0% 0
Testing
0 0%
100% 100
Security
59 59%
41% 41

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Live HTTP Headers and modheader

Live HTTP Headers Reviews

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modheader Reviews

Comparing Charles Proxy, Fiddler, Wireshark, and Requestly
On the pricing front, Requestly strikes a balance between affordability and functionality. It is an open-source tool, offering freemium to individual developers and affordable pricing plans for team collaboration. We have also clearly differentiated how Requestly differs from Wireshark and other web debugging tools like Proxyman, Modheader, and HTTP ToolKit separately.
Source: dev.to

What are some alternatives?

When comparing Live HTTP Headers and modheader, you can also consider the following products

HTTP Header Live - Displays the HTTP header. Edit it and send it.

Requestly - A Powerfulย API Mockingย andย Testingย Tool

HTTP Headers - HTTP Headers allows you to quickly see the HTTP header information for the current URL.

Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy

RequestHeaders.com - HTTP Header Checker Tools

Fiddler - Fiddler is a debugging program for websites.