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Google Chrome Developer Tools

Google Chrome Developer Tools is a powerful set of web development and debugging tools built into the Google Chrome web browser. It allows developers to have complete control over the development of their website or application. With it, they can test and debug their code, inspec...

Firefox Developer Tools

Firefox Developer Tools is a set of web development tools built into the Firefox browser. It allows web developers and designers to quickly and easily inspect and debug their websites, web apps and HTML, CSS and JavaScript code. With Firefox Developer Tools, it is easy to identif...

Almost the same functionality as Firebug, with many improvements.

yphastos

Directly integrated into Firefox, so it's faster. And guaranteed to stay up to date as Firefox evolves.

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Live HTTP Headers

Live HTTP Headers is a utility that provides web developers and webmasters with the ability to view the HTTP headers sent by their web server when a web page is requested. It displays the headers in real-time as the page is being loaded and displays the data in a structured forma...

HttpFox

HttpFox is a powerful and easy-to-use add-on for the Firefox web browser. It provides detailed information about HTTP requests and responses running in the browser. It can be used to analyze web page performance, debug AJAX requests, track redirects and much more. It also provide...

Discontinued The project is no longer being developed. The latest version, 0.8.14.1, released in May 2014, is not compatible with Firefox, but the extension still works in XUL-based Firefox forks such as https://alternativeapp.info/software/waterfox/ and https://alternativeapp.info /software / palemoon/.

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Visual Inspector

Visual Inspector is an advanced web and mobile development tool that allows developers to quickly and easily inspect and debug their websites and applications. It is an intuitive tool that makes it easy to test changes and view the resulting output in real-time. With Visual Inspe...

DOMScope

DOMScope is a development software application that provides developers with a powerful way to quickly examine and debug the Document Object Model (DOM) of websites and web applications. It provides a visual representation of the DOM tree, including attributes, child elements, an...

HTTP Header Live

HTTP Header Live is an online tool that allows users to view the HTTP header information of any website, as well as any other information related to the website. It provides general information about the website such as its title, description, keywords, language, and other meta t...

Graphical HTTP Client

A Graphical HTTP Client is a user-friendly application or website that allows users to interact with web servers and other web services, such as APIs, without having to write code. It provides a graphical user interface (GUI) that simplifies the process of making requests and rec...

HTTP Debugger

HTTP Debugger is a software application used by developers to inspect and debug the HTTP traffic of websites and web applications. It provides a detailed view of the HTTP requests and responses that occur between a client and a web server. It allows developers to analyze the HTTP...

HttpWatch

HttpWatch is a web development and debugging tool used to monitor, analyze and optimize HTTP and HTTPS traffic from web browsers. It is designed to help developers identify and diagnose problems with web applications and services. With HttpWatch, developers can view detailed info...

Live HTTP Headers (Chrome)

Live HTTP Headers (Chrome) is a Chrome browser extension that allows developers to view HTTP traffic in real-time. It provides a detailed view of the complete HTTP request and response headers, along with content data. This helps developers to debug issues related to web applicat...

Warning Suspected of distributing advertisements even after removing the extension

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Firebug is specifically DOM-based and allows DOM manipulation (including dynamic style changes), while HTTP LIVE headers capture traffic but do not provide the ability to manipulate the DOM. This application has more in common with Terlerik's Fiddler application than with FireBug.

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RESTed

RESTed is a development tool designed to simplify the process of creating, managing, and testing RESTful APIs. It provides users with an intuitive, graphical user interface (GUI) to quickly and easily build API endpoints, create and manage API requests, and test API responses. RE...

Windows RestClient

Windows RestClient is a powerful and easy-to-use REST client for Windows. It allows developers to easily create, test and debug RESTful APIs. With Windows RestClient, you can quickly make requests to a RESTful API, and then inspect the response data. It supports all popular HTTP ...

SplineTech Javascript Debugger

SplineTech JavaScript Debugger is a powerful and easy-to-use debugging tool for JavaScript-based applications and websites. It features an intuitive user interface, efficient debugging capabilities and detailed logging. SplineTech JavaScript Debugger can help web developers to id...

Site Relic

Site Relic is a web-based application that helps users monitor and analyze the performance of their websites. It offers a comprehensive suite of features that allow users to track and analyze website performance in real-time, identify issues, and take action quickly. Site Relic p...

GraphicalHttpClient

GraphicalHttpClient is a development software and application that enables developers to make HTTP requests from their computers. It allows users to create, manage and debug HTTP requests and responses quickly and easily, without having to write code. It features a graphical user...

StatusCake Tools

StatusCake Tools is a cloud-based web monitoring and performance tool that helps businesses monitor their website performance and track their uptime. It is designed to help businesses make sure that their website is always running at optimal performance. It provides real-time mon...

HTTP Headers

HTTP Headers are an essential part of the Hypertext Transfer Protocol (HTTP) used to send information between a web server and a web browser. They provide important information about the type of content being sent, how the browser should display it, and how the server should hand...

Warning Suspected of distributing advertisements, even after removing the extension

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Javascript Debugger (Venkman)

Javascript Debugger (Venkman) is a powerful software application for debugging JavaScript code. It provides powerful debugging tools such as breakpoints, step-by-step debugging, watchpoint, and more. With Venkman, developers can quickly identify, analyze and troubleshoot errors i...

HTTPScoop

HTTPScoop is an application (or website) designed to allow network administrators to quickly and easily inspect the secure HTTP (HTTPS) traffic passing through their networks. It is designed to provide users with a comprehensive view of the HTTPS communications taking place on th...

Discontinued The program is no longer updated. The latest version, 1.4.3, released in November 2009, can still be purchased from the official website.

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Firebug Comments

By mfgmdl · Aug 2011

Hola a todos, ¿Puede alguien explicarme por qué algunas etiquetas están resaltadas en gris claro? El texto de algunas etiquetas (divs) aparece en gris ... Acabo de comenzar a hacer algunos códigos html y css, así que, lamentablemente, no puedo saber si estoy haciendo algo mal con mis códigos. Estoy contento con la forma en que aparecen las cosas en la página, pero me gustaría saber por qué se resalta ese objeto en particular. Aqui esta el link. Es el div id = "tag" ... ¡Cualquier ayuda sería muy apreciada! Gracias

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