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PDF API HTML5
Mini SDK JavaScript and APIs library to create PDF file for web apps
SEO-tools
SEO-tools - информация о доменах, аудит сайтов на SEO ошибки, а также технический аудит любой страницы. Свыше 100 онлайн сервисов
Extension source viewer
View source code of extensions in the Chrome Web Store, Firefox or Opera addon gallery. Has button to install from Chrome Web Store.
(X)HTML5 Checker
A small extension to validate the markup of current tab
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
Live HTTP Headers
Monitor all HTTP/HTTPs traffic from your browser.
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any Page.
stylish-hub
A browser extension that brings a new GitHub experience
RDS bar
Quick SEO analysis of websites and pages, designed for webmasters and SEOs.
ModHeader
Modify HTTP request and response headers
Nextsense XML Signing Component
Signing XML document.
Tabby Extension
Easily add BookMarks to Tabby from your preferred browser!
fonts infos
An extention to show/inspect and analyze fonts in web-pages.
OCR - Image Reader
A powerful optical character recognition (OCR) extension to capture and convert images to text
GitHub (Enterprise) Projects Plus
[Deprecated] Adds advanced labels management and other functionality to GitHub.
Random password generator
A simple random password generator for Opera browser
AddCSS
This extension allows you to add your own custom website specific CSS style sheets.
Polypane helper
Open the current page or links in Polypane, the developer tool for responsive web development and design.
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.
Open in Pale Moon
Open current page, link, or all tabs in the Pale Moon browser.
Edit with Adobe Photoshop
Adds a context menu item to send image links directly to Adobe Photoshop photo editor
Browserling - Cross-browser testing
Cross-browser test websites in the most popular browsers such as Internet Explorer, Edge, Chrome, Firefox, Safari and Opera. Try for free!
WordPress Theme and Plugins Detector
This tool detects theme and plugins used on WordPress sites and displays information about them.
Live editor for CSS and LESS - Magic CSS
Live preview of CSS/LESS code with an in-page editor. Autocomplete, convert LESS to CSS, beautify, minify, CSS reloader, linter, ...
AddJS
This extension allows you to add your own custom website specific JavaScript.
Apple Docs Force Default Language
Forces Apple's developer documentation to always open in a specific language
DNS Checker - SEO and Domain Analysis
SEO and Domain Analysis Tool by DNS Checker. Provides SEO Report, Meta Redirects and 404s, Client IP, Domain IP & Geo Location, etc
GitHub Projects Plus
Adds advanced labels management and other functionality to GitHub.
TeamCity Notifier
Shows notifications about various events in TeamCity
Website Analysis & SEO Tool
Website SEO audit tool that provides website analysis in SEO, performance, validity, security, accessibility and other criteria.
Get Thumbnails or Image to video YouTube
從YouTube視頻製作縮略圖或圖像
NetworkMonitor
Shows the response times and uptime of a desired server. Useful to see how performs internet or a wireless access point.