Extensions
(X)HTML5 Checker
A small extension to validate the markup of current tab
PageSpeed Insights
This will take the URL of the current tab and send it to PageSpeed Insights for a web performance analysis.
.no { CSS }
Opera 12 reminiscent Shift-G CSS zapper (use Alt-G)
Right Click Validator
Right click on any webpage to validate it using the W3 NUValidator service.
View Page Source
Get access to the page source with the click of a button
Website Analysis & SEO Tool
Website SEO audit tool that provides website analysis in SEO, performance, validity, security, accessibility and other criteria.
sha1 hash generator
SHA1 hash generator (offline mode)
Nextsense XML Signing Component
Signing XML document.
Open in Vivaldi
Open current page, link, or all tabs in the Vivaldi browser.
Edit with Sublime Text
Edit an HTML element and all its child nodes in Sublime Text editor with real-time updates
Website scripting
Developers can add javascript codes in webpage. Like customizing other websites with our own codes.
ChroPath for Opera
AutonomIQ offers a developers platform ChroPath to generate and validate unique selectors like relative xpath with iframe support
KML/KMZ Viewer
Can be used to view KML/KMZ Files in the browser.
Involta Short links
Сервис сокращения ссылок
MultiPass
Connexion automatique à une authentification HTTP basique en utilisant des données basées sur une expression régulière pour l'URL.
CSS3 Button Maker
Is CSS button code generator free easy tool that allows you create beautiful and elegant CSS web buttons in few clicks
Tabby Extension
Easily add BookMarks to Tabby from your preferred browser!
Check Wordpress Version
WordPress Vulnerability Scanner - Scan for vulnerabilities, version, themes, plugins and much more!
OctoLinker
OctoLinker – Links together, what belongs together.
Rabbit URL Opener
Rabbit URL Opener - Bulk URL's Opener Extension just lets you open multiple URLs at once
Browser Update Watchdog
Notifies you, whenever your browser has been automatically updated.
retire.js
Scanning website for vulnerable js libraries
SEO Nofollow links highlighter
Highlight all nofollow links on any site you want. Excellent for SEO purposes.
Sitemap Explorer: Check and View XML Sitemaps
Cette extension vous aide à trouver, inspecter, exporter et afficher les fichiers XML Sitemap de tout site sur lequel vous naviguez dans un navigateur.
W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.
md5 hash generator
MD5 hash generator (offline mode)
PIX Studio Plugin
PIX Studio Plugin
Window Performance Test
Get accurate performance timing for any page with this extension
Nextsense PDF Signing Component
Signing PDF document.
Webmaster menu
Adds new items to browser context menu that open various analyzes of browsed web pages and sites.
Apple Docs Force Default Language
Forces Apple's developer documentation to always open in a specific language
NFT Scanner
Scan your NFT assets.