Extensões
FullScreen for Opera
Tela cheia, #1 zoom e modo escuro, mais opções entrarão em um
sha1 hash generator
SHA1 hash generator (offline mode)
PerfectPixel by WellDoneCode
This extension helps develop your websites with pixel perfect accuracy!
Font Finder
Um inspector de fontes fácil de usar para obter os estilos CSS do elemento seleccionado
View Page Source
Get access to the page source with the click of a button.
Strike Out Nofollow Links
Just strikes out nofollow links via CSS3 selectors.
TeamCity Notifier
Shows notifications about various events in TeamCity
TwicPics Companion
Using TwicPics has never been so easy!
md5 hash generator
MD5 hash generator (offline mode)
Polypad (Open in App)
Polypad Open in App.
Image Extractor
Extracts image names and allows copying image URLs.
SEO-tools
SEO-tools - information about domains, site audit for SEO errors, as well as technical audit of any page. Over 100 online services
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
Octotree
GitHub on steroids
W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.
CSS & JS Injector
Easily customize your browsing experience CSS & JS Injector is a tool for developers, designers, and power users. Apply custom CSS styles and JavaScript to specific websites effortlessly. Boost productivity and customize the look, feel, and functionality of websites without altering its source code.
GrabzIt Web Scraping Assistant
Create Web Scrapes online easier than ever before with GrabzIt's Web Scraping Assistant.
Clear Cache
Clear your cache and browsing data with a single click of a button.
SeoQuake extension
O SEOquake é um plugin gratuito que lhe oferece métricas de SEO fundamentais, juntamente com outras ferramentas úteis como a Auditoria de SEO e muitas outras
Disable Cookies
Disable cookies for current domain.
Edit with Paint.Net
Adds a context menu item to send image links directly to Paint.Net photo editor
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
Fontstorage
The simplest extension for identifying and selecting fonts on a website.
Youtube converter button - YTLoad
YouTube downloader FREE - Convert videos to MP3 MP4
retire.js
Scanning website for vulnerable js libraries
BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.
Font Inspector
Click on any HTML element to get the font info in a popup!
Web Edit
Edite facilmente sites temporariamente com o clique de um botão.
Random password generator
A simple random password generator for Opera browser
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, ...
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers
Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.