Пашырэньні
Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers
Squeezeimg - convert & compress images, WEBP, JP2
This extension will optimization image a page using Squeezeimg
WordPress Theme and Plugins Detector
This tool detects theme and plugins used on WordPress sites and displays information about them.
Image Resizer
Rescale multiple images into different sizes in a single step
md5 hash generator
MD5 hash generator (offline mode)
Yandex Wordstat Regions
Расширение, возвращает полное дерево регионов РФ в сервис подбора слов Яндекс (wordstat)
Reddit to Mp4 converter | reditor
redditdownloader.us allows users to download Reddit videos with audio in high quality.
Web Widgetizer
Web Widgetizer is a extension offering a range of features to enhance browsing. It allows users to create separate Opera windows for specific websites, manage favorite links, customize window dimensions, toggle auto-start, and open links in popup tabs via button click or shortcut (Ctrl + Shift + A). This versatile tool optimizes browsing convenience and efficiency.
OctoLinker
OctoLinker – Links together, what belongs together.
Open in Vivaldi
Open current page, link, or all tabs in the Vivaldi browser.
MultiPass
Automatically login to Basic Authentication using data based on URL regexp.
CF-Predictor
This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.
.no { CSS }
Opera 12 reminiscent Shift-G CSS zapper (use Alt-G)
Extensions for Mermaid
A browser extension for Chrome, Opera & Firefox that adds Mermaid language support to GitHub. A fork from the not updated GitHub + Mermaid extension.
JxArşiv | Araçlar
Currency, Meter, Square, VAT, Percentage, Letter, Word Count, Age Calculation and Archives ...
SEO Nofollow links highlighter
Highlight all nofollow links on any site you want. Excellent for SEO purposes.
Hitsteps Visitor Manager
Get your website analytics insight and get notified about updates and live support requests in your dashboard
Design Mode
Edit any page's content by switching to design mode, where you can modify the content and drag images around like a Word Editor
Right Click Validator
Right click on any webpage to validate it using the W3 NUValidator service.
JavaScript QR Code
Make QR Codes in JavaScript
PageSpeed Insights
This will take the URL of the current tab and send it to PageSpeed Insights for a web performance analysis.
InTab - Code CSS 2X Faster
Visually Style Any Website In Any Browser
Website Analysis & SEO Tool
Website SEO audit tool that provides website analysis in SEO, performance, validity, security, accessibility and other criteria.
TestCase Studio
TestCase Studio record the user actions performed on a web application in English Sentences.
Modify Header Value
Add, modify or remove a header for any request on desired domains.
(X)HTML5 Checker
A small extension to validate the markup of current tab
Browser Update Watchdog
Notifies you, whenever your browser has been automatically updated.
sha1 hash generator
SHA1 hash generator (offline mode)
Apple Docs Force Default Language
Forces Apple's developer documentation to always open in a specific language
NsLookup - Find DNS Records
A simple and powerful tool for querying DNS records
W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.
Gridify - Keyboard Link Selector
Select any link, image, input box, or a selectable region on the current page without using the mouse just by a few keyboard hits