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

Get your startup mentioned where AI and search look. We recommend high impact directories, listicles and threads that best fit your startup, draft your outreach, and track how often ChatGPT and Claude name you versus competitors.

Key Sightivo features:

Opportunity Map Directory listings Author outreach Thread answers

Try for free paid Free Trial $79 / Monthly

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

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

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

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

The Mozilla Observatory is a project designed to help developers, system administrators, and security professionals configure their sites safely and securely.

Key Mozilla Observatory features:

Comprehensive Security Testing Free to Use Open-Source Educational Benefits

Open Source

Hardenize provides a comprehensive and free assessment of web site network and security configuration.

Key Hardenize features:

Comprehensive Analysis User-Friendly Interface Regular Monitoring Comprehensive Reports

A Powerful API Mocking and Testing Tool.

Key Requestly features:

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

Open Source freemium

AI-Enabled Attack Surface Management, Dark Web Monitoring, and Application Penetration Testing solutions tailored to reduce complexity and costs of Application Security Testing, Protection and Compliance.

Key ImmuniWeb features:

Attack Surface Management Dark Web Monitoring Cyber Threat Intelligence Web, Mobile, Cloud, API Penetration Testing

paid Free Trial