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The Top 153 Opera Extension Open Source Projects

Categories > Web Browsers > Opera Extension
Https Everywhere ⭐ 3,308
A browser extension that encrypts your communications with many websites that offer HTTPS but still allow unencrypted connections.
most recent commit a month ago
Extension Boilerplate ⭐ 2,994
⚡️ A template for building cross browser extensions for Chrome, Opera & Firefox.
most recent commit 5 months ago
Jiffyreader.com ⭐ 2,793
A Browser Extension for Bionic Reading on ANY website!
most recent commit a day ago
Github Hovercard ⭐ 1,668
Neat hovercards for GitHub.
most recent commit 5 months ago
Web Extension Starter ⭐ 1,476
🖥🔋Web Extension starter to build "Write Once Run on Any Browser" extension
most recent commit 2 months ago
Ghostery Extension ⭐ 1,083
Ghostery Browser Extension for Firefox, Chrome, Opera and Edge
most recent commit 4 days ago
Passff ⭐ 1,062
zx2c4 pass manager extension for Firefox, Chrome and Opera
most recent commit 11 days ago
Premid ⭐ 936
🧬 Source code of the PreMiD application.
most recent commit 11 days ago
Smoothscroll For Websites ⭐ 739
Smooth scrolling experience for websites.
dependent packages 3total releases 8most recent commit 2 years agonpm smoothscroll-for-websites} Downloads
React Typescript Web Extension Starter ⭐ 686
🖥 Web Extension starter kit built with React, TypeScript, TailwindCSS, Storybook, Jest, EsLint, Prettier, and Webpack. Supports Google Chrome + Mozilla Firefox + Brave Browser + Microsoft Edge + Opera 🔥
total releases 3most recent commit 12 days ago
Webextension Toolbox ⭐ 516
Small CLI toolbox for cross-browser WebExtension development
dependent packages 1total releases 37most recent commit 7 days agonpm webextension-toolbox} Downloads
Browserextension ⭐ 398
💻 SteamDB's extension for Steam websites
most recent commit 4 days ago
Hide Files On Github ⭐ 287
Chrome extension - Hide nonessential files from the GitHub file browser
most recent commit a year ago
The Printliminator ⭐ 278
most recent commit 6 years ago
Turbo Download Manager ⭐ 262
a multi-browser download manager with multi-threading support
most recent commit 5 years ago
Wallabagger ⭐ 258
Chrome / Firefox / Opera plugin for wallabag v2.
most recent commit 13 days ago
Generator Web Extension ⭐ 244
Advanced WebExtension generator that creates everything you need to get started with cross-browser web-extension development.
total releases 5most recent commit 5 months ago
Feedly Notifier ⭐ 216
Google Chrome, Firefox, Opera and Microsoft Edge extension for reading news from RSS aggregator Feedly
most recent commit 7 days ago
Asciidoctor Browser Extension ⭐ 180
⚪️ An extension for web browsers that converts AsciiDoc files to HTML using Asciidoctor.js.
most recent commit 13 days ago
Save To The Wayback Machine ⭐ 134
Browser extension for quickly saving web pages to the Internet Archive's Wayback Machine.
most recent commit 4 months ago
Ccsearch Browser Extension ⭐ 114
[PROJECT TRANSFERRED] Cross-Browser extension to search, filter and use images in the public domain and under Creative Commons licenses.
most recent commit 7 months ago
Kutt Extension ⭐ 112
🔗✂️ Cross-Browser URL Shortener Extension based on Kutt.it
most recent commit 2 months ago
Briskine ⭐ 90
Write faster with templates and keyboard shortcuts.
most recent commit 13 days ago
React Browser Extension Boilerplate ⭐ 81
🎉 React / Preact X browser extension boilerplate for the most popular browsers (Chrome, Firefox, Opera, new Edge and other Chromium-based browsers)
total releases 2most recent commit 2 years ago
One Click Extensions Manager ⭐ 79
a simple chrome extension to manage chrome extension
most recent commit 9 months ago
Tabhamster ⭐ 72
Chrome and Opera Extension. Session manager and tabs saver. With sync.
most recent commit 5 months ago
Extension Cli ⭐ 68
Command line tool for building extensions/add-ons for chromium based browsers.
total releases 67most recent commit 4 months ago
Slack Channels Grouping ⭐ 67
Chrome extension. Grouping slack channels.
most recent commit 18 days ago
Quickjira ⭐ 64
🚤 📂 Quickly access the JIRA of your choice by typing the ticket id
most recent commit 13 days ago
Packagehub ⭐ 59
An extension for displaying dependencies of projects on GitHub
most recent commit 4 years ago
Make Github Greater ⭐ 55
Let's make GitHub greater.
most recent commit 5 years ago
Bulkurlopener ⭐ 55
Bulk URL Opener is an application that provides the user with multiple utilities to help with managing and using large amounts of urls
most recent commit 6 days ago
Syncwatch ⭐ 53
Browser extension to watch videos together
most recent commit a month ago
Za Dark ⭐ 52
ZaDark is an open source extension that helps you enable Dark Mode for Zalo on PC and Browser.
most recent commit 24 days ago
Amazon Smile Redirect ⭐ 49
This Extension will automatically redirect you to the corresponding AmazonSmile page, so you will never need to remember to go to AmazonSmile first. In order for your non-profit to benefit from your purchase, you must complete your purchase through AmazonSmile.
most recent commit 2 months ago
Amazon Tag Remover ⭐ 48
🚫 💹 🛒WebExtension for Chrome, Firefox, Edge and Opera to remove the Amazon affiliate tracking ID (tag) from amazon links
most recent commit 12 days ago
Scrolltotop ⭐ 42
Scroll To Top extension for Chrome, Firefox, Safari, Opera.
most recent commit a year ago
Mailto Chromeextension ⭐ 39
A Chrome, Opera and Safari extension that handles mailto: links
most recent commit 4 years ago
Gladiatuscrazyaddon ⭐ 33
A browser addon for the Gladiatus browser game.
most recent commit 17 hours ago
Tab Counter ⭐ 31
A button badge that shows the number of tabs open in a window
most recent commit 5 months ago
Chummy ⭐ 31
The missing browser extension for Github.
most recent commit a year ago
Webextension Fip ⭐ 30
Minimalistic WebExtension to listen to FIP Radio, the best eclectic radio station (for Firefox, Chrome, Opera and Edge)
most recent commit 2 months ago
Duo Strength ⭐ 29
Browser extension to add back the strength for each individual skill, and other useful hidden statistics.
most recent commit 2 months ago
Yandex_music_fisher_mod ⭐ 29
Плагин для скачивания музыки с сервиса https://music.yandex.ru/ Расширение для браузеров Opera и Google Chrome
most recent commit 5 months ago
Focus Extension ⭐ 28
Official browser extension for Focus (WebExtension currently supports Firefox, Opera, Brave, Vivaldi)
most recent commit 3 years ago
Weatherce ⭐ 24
Weather Browser Extension
most recent commit a year ago
Prevent Duplicate Tabs ⭐ 23
Simple add-on/extension for prevent duplicate tabs
most recent commit 7 months ago
Nice Try Scribd ⭐ 23
Unblur Scribd Documents...
most recent commit a month ago
Boilerkeyextension ⭐ 21
An extension that alleviates Purdue's BoilerKey 2 factor authentication.
most recent commit 9 months ago
Voracious ⭐ 21
Lookup tough words
most recent commit 5 years ago
Brainlytools_extension ⭐ 20
A toolbox for exclusive users of Brainly. It enhances Brainly and provides tools to do fast and massive actions and much more..
most recent commit a year ago
Youtube Ambilight ⭐ 18
This browser extension adds ambient light to YouTube videos
most recent commit 2 months ago
Github Clean Feed ⭐ 18
Group GitHub's news feed events by repo (Chrome, Firefox, Opera)
most recent commit 5 years ago
Tmetric Plugins ⭐ 17
Browser extension that adds TMetric one-click time tracking to popular Web apps.
most recent commit 2 months ago
React Extension Boilerplate ⭐ 17
This is cross-browser(Chrome, Firefox, Opera, Edge) extension boilerplate using React, Typescript and Webpack
most recent commit 3 months ago
Better500px Webextension ⭐ 16
Enhances 500px.com with a few useful shortcuts for better navigation
most recent commit 6 years ago
Mediaplus ⭐ 15
MediaPlus is an extension that makes media content like flash movies, games, images or HMLT5 movies more usable on websites.
most recent commit 3 months ago
Page Shadow ⭐ 14
A Chrome, Firefox, Opera and Edge extension to increase contrast, decrase brightness and invert color of websites
most recent commit 4 days ago
Security.txt ⭐ 13
ℹ️ Cross-platform browser extension for discovering security.txt and humans.txt files.
most recent commit a month ago
Stylish Hub ⭐ 13
🍹 A browser extension that brings new GitHub features and experience.
most recent commit a year ago
Rightclicksteamkeyactivator ⭐ 13
Chrome/Firefox/Opera Extension that allows to select/mark a SteamKey and quickly activate it via Right-Click Context Menu
most recent commit 2 months ago
Jenkins Helper ⭐ 13
监控 Jenkins 构建状态和节点状态，同时也提供一些便利功能。Monitoring Jenkins build state and node state and helping Ops use Jenkins.
most recent commit 8 days ago
Wikipedia Peek ⭐ 13
Firefox add-on / chrome/opera extension that shows previews of linked articles on Wikipedia pages
most recent commit 3 years ago
Tab Slider ⭐ 12
A Chrome/Opera/Firefox extension which just slides most recent tabs to the left, creating totally different browsing experience.
most recent commit 7 months ago
Chrome Otto Tabs ⭐ 10
Smart tabs management
most recent commit 2 years ago
Duckduckgo Bangs ⭐ 10
most recent commit 5 years ago
Google Sheets Tabs On Top ⭐ 9
Chrome extension. Move Google Sheets tabs on top.
most recent commit 18 days ago
Csfd Magnets ⭐ 9
Magnet links for CSFD (chrome extension)
most recent commit a month ago
Memesmileys ⭐ 9
[DEPRECATED] Silly Opera extension to show meme-style smileys on social networking sites
most recent commit 9 years ago
Hate Love Twitter ⭐ 9
Browser extension which hides likes of users you follow from your Twitter timeline
most recent commit 5 years ago
2ch Helper ⭐ 9
Расширение для браузера, которое облегчает взаимодействие с имиджбордой 2ch.hk.
most recent commit 2 years ago
Google Meet Auto Accepter ⭐ 8
most recent commit 2 years ago
Drrr Botext ⭐ 8
chrome chatbot extension for drrr.com
most recent commit 16 days ago
Chrome Manifest Loader ⭐ 8
Chrome manifest loader for webpack
total releases 5most recent commit 6 hours ago
Youtubediscordpresence ⭐ 8
An extension that takes data directly from the YouTube video playing on the browser and displays it as a rich presence on Discord. Works similar to the Spotify Discord rich presence.
most recent commit a month ago
F Notifier ⭐ 7
Browser extension that displays your Facebook notifications unread count.
most recent commit 2 months ago
Pwdhash ⭐ 7
A secure local password generator based upon Stanford PwdHash (pwdhash.com)
most recent commit 3 years ago
Toster Extension ⭐ 7
Расширение браузера Toster Extension. Улучшает возможности сайта toster.ru
most recent commit 4 months ago
Youtube Repeater ⭐ 7
Adds a button to YouTube videos to toggle auto-repeat.
most recent commit 6 years ago
Rfc Reader ⭐ 7
Simple extension that makes IEFT's RFCs more eye friendly.
most recent commit 5 months ago
Web Extension Hatemile For Browser ⭐ 7
Improve the accessibility of web pages, especially for users who use screen readers or navigate using the keyboard.
most recent commit 4 years ago
Email Validation Extension ⭐ 7
This is an extension for prevalidation before sending emails.
most recent commit a year ago
Documents ⭐ 7
Viewer for online documents (e.g. PDF, MS Word, ...)
most recent commit 8 years ago
Linkedin Automation Extension ⭐ 6
This is a browser extension for Linkedin Auto connect and message
most recent commit 5 months ago
Analytics Debug Panel ⭐ 6
Chrome, Firefox & Opera Browser Extension - Analytics Debug Panel
most recent commit a year ago
Opera Gcal Sd ⭐ 5
Opera extension to display Google Calendar entries in Speed Dial
most recent commit 8 years ago
Operaextensionshowfilteredcontent ⭐ 5
A simple Opera extension that shows which URLs have been blocked in the current page
most recent commit 11 years ago
Dev Extensions Reload ⭐ 5
Chromium extension. Reload enabled dev. (unpacked) extensions
most recent commit 6 years ago
Youtube Audio Library Downloader ⭐ 5
YouTube Audio Library Downloader extension
most recent commit 5 years ago
Url Shortcut ⭐ 5
Allows users to create shortcuts that, when entered into the URL bar, will redirect them to the preset page
most recent commit 5 years ago
Rbutr Browser Extension ⭐ 5
rbutr tells you when the webpage you are viewing has been disputed, rebutted or contradicted elsewhere on the internet.
most recent commit 3 years ago
Opera Close Tabs Right Left Of ⭐ 4
Opera extension to close tabs right/left of current tab
most recent commit 10 years ago
Twitterinlineimages ⭐ 4
[DEPRECATED] Simple Opera extension to show images inline on Twitter
most recent commit 9 years ago
Revolut Real Exchange Rates Monitor ⭐ 4
Track Revolut currency exchange to get best rate when you transfer.
most recent commit a month ago
Quotelink ⭐ 4
Opera extension for activating the cite URI in quotes markup
most recent commit 5 years ago
Upload Opera Extension ⭐ 4
Submit an update to a Opera Extension with one simple function call
most recent commit 2 years ago
Fix The Web Patch Script ⭐ 4
**NOT MAINTAINED** The web patch script for "Fix the Web", an Opera extension
most recent commit 5 months ago
Redditinfinity ⭐ 4
Simple, lightweight, infinite scrolling for reddit
most recent commit 5 years ago
Hackmd It Issues ⭐ 4
hackmd-it browser extension issue reporting and feature request
most recent commit 4 years ago
Javascript Oauth Experiments ⭐ 4
[DEPRECATED] Non-working OAuth experiments in Javascript (as an Opera extension)
most recent commit 9 years ago
1-100 of 153 projects
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All Projects
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Build Tools 📦 105
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Code Quality 📦 24
Collaboration 📦 27
Command Line Interface 📦 38
Community 📦 79
Companies 📦 60
Compilers 📦 59
Computer Science 📦 73
Configuration Management 📦 37
Content Management 📦 153
Control Flow 📦 187
Data Formats 📦 72
Data Processing 📦 249
Data Storage 📦 116
Economics 📦 56
Frameworks 📦 178
Games 📦 110
Graphics 📦 92
Hardware 📦 137
Integrated Development Environments 📦 43
Learning Resources 📦 139
Legal 📦 24
Libraries 📦 117
Lists Of Projects 📦 19
Machine Learning 📦 313
Mapping 📦 57
Marketing 📦 15
Mathematics 📦 54
Media 📦 214
Messaging 📦 96
Networking 📦 292
Operating Systems 📦 71
Operations 📦 114
Package Managers 📦 50
Programming Languages 📦 173
Runtime Environments 📦 90
Science 📦 42
Security 📦 343
Social Media 📦 23
Software Architecture 📦 65
Software Development 📦 60
Software Performance 📦 53
Software Quality 📦 115
Text Editors 📦 40
Text Processing 📦 118
User Interface 📦 291
User Interface Components 📦 440
Version Control 📦 26
Virtualization 📦 63
Web Browsers 📦 35
Web Servers 📦 23
Web User Interface 📦 167
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