• Adblock Plus

    Adblock Plus is a free extension that allows you to - among other things - block annoying ads, disable tracking and block domains known to spread malware.

     

    Free Open Source Mac OS X Windows Linux iPhone Chrome OS BSD iPad Microsoft Edge ... Internet Explorer Vivaldi Browser Chrome Safari Yandex.Browser Opera Firefox

  • Feedly

    Feedly is a better way to organize, read and share the content of your favorite sites.

     

    Freemium $ $ $ Web Android iPhone Chrome OS Android Tablet iPad Apple Watch Chrome ... Safari Kindle Fire Firefox

  • LastPass

    Password Manager, Auto Form Filler, Random Password Generator & Secure Digital Wallet App.

     

    Freemium $ $ $ Mac Windows Linux Web Android iPhone S60 Blackberry ... Android Tablet BSD Windows Phone iPad Microsoft Edge Internet Explorer Vivaldi Browser Chrome Maxthon Opera Firefox

  • Inoreader

    Dive into your favorite content. The content reader for power users who want to save time.

     

    Freemium $ $ $ Web Android iPhone Chrome OS Android Tablet Windows Phone iPad Chrome ... Safari Kindle Fire Opera Firefox

  • uBlock Origin

    Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird. Fast and lean.

     

    Free Open Source Mac Windows Linux Microsoft Edge Vivaldi Browser Chrome Safari Pale Moon ... Opera Chromium Firefox

  • DuckDuckGo

    DuckDuckGo is an alternative search engine that has rich features, respects your privacy, and is built from free/open-source software. • Zero-click Info - Useful information above the links. • More Privacy - We do not track you.

     

    Free Web Android iPhone Android Tablet iPad Vivaldi Browser Chrome Safari ... Yandex.Browser Opera Firefox

  • DownThemAll

    DownThemAll (or just dTa) is a powerful yet easy-to-use Mozilla Firefox extension that adds new advanced download capabilities to your browser.

     

    DownThemAll icon

    Free Open Source Mac Windows Linux BSD Pale Moon Firefox

    • Discontinued The extension is currently not working on Firefox 57. The developer is working on a WebExtension, but it is not ready yet: http://www.downthemall.net/category/news/
  • XMarks

    Xmarks is a cross-browser, bookmark-synchronization service for Internet Explorer, Firefox, Chrome, Safari, iPhone, Android & iPad. Xmarks also offers search enhancement and web discovery based on sites bookmarked by users.

     

    XMarks icon

    Freemium Mac Windows Linux Web Android iPhone Blackberry iPad ... Internet Explorer Chrome Safari Firefox

    • Discontinued LastPass has retired Xmarks from its line of products as of May 1, 2018. After that date, you will no longer have access to Xmarks.
  • MEGA

    You hold the security keys for 50 GB free storage, unlimited desktop sync bandwidth, and 10 GB per month of free bandwidth for sharing with other accounts.

     

    MEGA icon

    Freemium $ $ $ Open Source Mac Windows Linux Web Android iPhone Blackberry Chrome OS ... Windows S Android Tablet Windows Phone iPad Blackberry 10 Chrome Firefox

  • Firebug

    Firebug integrates with Firefox to put a wealth of web development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.

     

    Firebug icon

    Free Open Source Mac OS X Windows Linux Firefox

    • Discontinued The Firebug extension isn't being developed or maintained any longer. The team advised to use the built-in https://alternativeto.net/software/firefox-developer-tools/ , which ship with Firebug. Last version of Firebug, 2.0.18, was released on October 7, 2016 and didn't support the browser's multi-process architecture.
  • 1Password

    1Password creates strong, unique passwords for all of your sites and logs you in with a single tap (or click). A single click opens your browser, opens a site, fills in your username and password, and logs you in.

     

    1Password icon

    Commercial Mac OS X Windows Web Android iPhone Android Tablet iPad Apple Watch ... Vivaldi Browser Chrome Safari Yandex.Browser Opera Firefox

  • Greasemonkey

    Customize the way a web page displays or behaves, by using small bits of JavaScript.

     

    Greasemonkey icon

    Free Open Source Mac OS X Windows Linux Firefox

  • Papaly

    Papaly is a simple social bookmarking tool to manage all your links. Create custom boards and categories. Share and follow topics of interest to discover new content.

     

    Papaly icon

    Free Web iPhone Chrome OS Vivaldi Browser Chrome Firefox

  • Pencil Project

    Pencil is a standalone app or Firefox extension that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.

     

    Pencil Project icon

    Free Open Source Mac OS X Windows Linux PortableApps.com Electron / Atom Shell Firefox

  • Imgur

    Imgur is a free and simple image hosting service with image editing feature. Signup is optional. Imgur is pronounced like image-er; imager. The maximum non-animated file size you can upload is 10MB.

     

    Imgur icon

    Free Mac Windows Linux Web Android iPhone BSD Wordpress ... Firefox

  • StumbleUpon

    StumbleUpon discovers web sites based on your interests, learns what you like and brings you more.

     

    StumbleUpon icon

    Free Windows Linux Web Android iPhone iPad Chrome Firefox

  • ShareX

    ShareX is a free and open source program that lets you capture or record any area of your screen and share it with a single press of a key. It also allows uploading images, text or other types of files to over 80 supported destinations.

     

    ShareX icon

    Free Open Source Windows Chrome Firefox

  • Ghostery

    Ghostery sees the invisible web - tags, web bugs, pixels and beacons. Ghostery tracks the trackers and gives you a roll-call of the ad networks, behavioral data providers, web publishers, and other companies interested in your activity.

     

    Ghostery icon

    Free Open Source Mac Windows Linux Android iPhone Android Tablet iPad Microsoft Edge ... Vivaldi Browser Chrome Safari Yandex.Browser Opera Firefox

  • Delicious

    Delicious is a social bookmarking service that allows users to tag, save, manage and share web pages from a centralized source.

     

    Delicious icon

    Free Web Android iPhone Android Tablet iPad Chrome Firefox OS Firefox

    • Discontinued Delicious has been acquired by https://alternativeto.net/software/pinboard/ . Since June 15 2017, the service is into read-only mode and users can export their bookmarks elsewhere. https://blog.pinboard.in/2017/06/pinboard_acquires_delicious/
  • HTTPS Everywhere

    HTTPS Everywhere is a browser extension produced as a collaboration between The Tor Project and the Electronic Frontier Foundation. It encrypts your communications with a number of major websites.

     

    HTTPS Everywhere icon

    Free Open Source Windows Linux Android Android Tablet BSD Vivaldi Browser Chrome Yandex.Browser ... Opera Chromium Firefox

  • Todoist

    Todoist is a task manager thats useful, fast and easy to use. Accomplish more, every day. Millions of people rely on Todoist to get things done. Todoist lets you manage your tasks anywhere. At home. At school. At work. Online.

     

    Todoist icon

    Freemium Mac Windows Web Android iPhone Chrome OS Android Tablet Windows Phone ... iPad Chrome Microsoft Office Outlook Android Wear Gmail Firefox

  • NoScript

    Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

     

    NoScript icon

    Free Open Source Mac OS X Windows Linux BSD SeaMonkey Firefox

  • Diigo

    Better reading and research with annotations, highlighter, sticky notes, archiving, bookmarking and more.

     

    Diigo icon

    Freemium Web Android iPhone iPad Internet Explorer Chrome Safari Firefox

  • Zotero

    Zotero is a free, easy-to-use Firefox/Chrome extension or standalone program to help you collect, organize, manage, search and cite your research sources directly in your favourite word processor, with 300 MB free online storage.

     

    Zotero icon

    Free Open Source Mac OS X Windows Linux Chrome Safari Microsoft Office Word LibreOffice Firefox

  • ZenMate

    ZenMate is an easy to use Browser plugin that provides a VPN solution - encrypting all your browser traffic and routing it through our ZenMate cloud to provide a secure and private browsing experience.

     

    ZenMate icon

    Commercial Mac OS X Windows Web Android iPhone Android Tablet iPad Vivaldi Browser ... Chrome Maxthon Yandex.Browser Opera Chromium Firefox