Developer Tools

Easily mockup and design webpages with drag & drop components library, multi-page editing, LESS Css styling and Bootstrap 3 support.

JSON LD Test and Viewer

FoxyCrown Cookie Manager

下载网页所有资源，包含html、css、javascript、images，按照网站原有目录结构下载所有资源，方便资源查找和备份

Easy to Start, Easy to Deploy, Easy to Scale

Adds many features to the Waze editor

Developer tooling for Web Components and Web Component Libraries

Discover fake cc gen, the ultimate fake debit card generator for seamless software testing and safe trial setups.

Author, debug, and roll out Content-Security-Policy headers without redeploying.

Highlight occurrences of selected text, with or without a keypress.

An extension to help you gain full control of any website by redirecting traffic, replacing, editing, or inserting new content.

SharePoint Online dev toolbox: PnP JS & Graph SDK consoles, REST client, search, file editor, webhooks, properties & AI assistant

Check your website on technical, seo content and popularity aspects.

Helps users to change browser user agent string across all websites

Cookies Extractor is a handy tool to help developers extract website cookies, making it easier for them to debug APIs.

Character and word count in your text

Qualys Browser Recorder is a free browser extension to record & play back scripts of any web application.

Preview Userflow drafts before installing Userflow.js, and debug your setup directly on your website for seamless integration.

Find Selenium Objects - id, name and custom attributes highlighted in different colors for easier test automation

A simple random password generator for Chrome browser

Saving your time when you switch domain-ip mapping (Hosts file) between different environment. Awesome host file editor !

Cloud IDE · Online Code Editor · Codeanywhere - this extension enables opening Codeanywhere workspaces from Git provider sites.

An essential tool to test the responsiveness of any website on multiple screens simultaneously

单击插件下Get Cookie条目，就可以获取当前页面的Cookie并粘贴至剪切板. 可以直接粘贴进postman等工具发起请求

SerpWorx SEO extension. Free trial version, no cc req, only $29.95 p/m. Instant SEO metrics in your search results & on any site.

Unlock advanced features directly inside of the Webflow designer. Copy from thousands of components, free icon packs and much more!

Modify HTTP request headers, response headers, and redirect URLs

Add HTML elements and styles to your script notes. View Pretty Print JSON objects. Links to records.

Tailwind CSS Developer Tools

Enhance your Google Tag Manager debugging.

A very simple ruler to check your webpage, without ads, without secrets, just a ruler.

Check and preview the social sharing details from a page's Open Graph metadata

Develop, test and execute puppeteer scripts from browser's developer tools.

Login to Facebook using cookies.

Create password protected ZIP files

Fork of Caret Editor that has full Tern integration (Intellisense for Javascript)

Capture full page, visible & selected area screenshots with URL bar & hidden Bookmarks, record screen with inbuilt editor.

Create grids on pages that provide the developers visual hints to help in developing the web app layouts.

Encode plain text to Base64, Decode Base64 text to plain text – All functionality available offline also.

Helps customers that use Convert Experiences A/B testing tool from Convert.com in the process of developing and debugging

This extension shows the h-Tags on page.

Your browser, your rules — your digital fingerprint, in your control.

Lets you know what font is used on any website

Devtools panel for Rails development

JavaScript Reverse Tools -- JS逆向工具

Quickly check if a webpage is built with Next.js and explore static properties and other related NextJS useful metrics.

Patch holes in GA4 for better reporting. Adds '% of Total' in reports, 'Click to Copy' values, one-click report building and more.

Chrome extension for exploratory testing

CSSViewer

Session Replay browser extension that allows to proxy loading of resources when replaying a session