SeaMonkey

the seamonkey project is a community effort to develop the seamonkey all-in-one internet application suite. a lighter alternative to mozilla firefox.

Free
Open Source
Mac OS X
Windows
Linux
BSD

the seamonkey project is a community effort to develop the seamonkey allinone internet application suite. a lighter alternative to mozilla firefox. such a software suite was previously made popular by netscape and mozilla, and the seamonkey project continues to develop and deliver highquality updates to this concept. containing an internet browser, email and newsgroup client, html editor, irc chat, web development tools, and with plenty of addons available, seamonkey is sure to appeal to advanced users, web developers and corporate users, as well as to those who need a fast, yet modern, web browser.

Links to official SeaMonkey sites

Features

Extensible by Plugins/Extensions Portable Built in RSS reader WYSIWYG Support Integrated Email Client Support for Firefox extensions Modular System

The Best 116 SeaMonkey Alternatives

5154 Like

Mozilla Firefox

Mozilla Firefox (known simply as Firefox) is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation.

Free Open Source Mac OS X Windows Linux Android iPhone Android Tablet BSD iPad

Bookmark organization Built in Download Manager Built in Script Blocker Customizable Extensible by Plugins/Extensions Firefox extension Free Speech Fully customizable layout Based on Gecko engine HTML5 Support Integrated PDF Viewer Legacy addons support Minimalistic Moddable Multiple Browser Tabs Optimal performance Portable Privacy focused Privacy protection Resume interrupted downloads Capture Screen / Take screenshots Security focused Tabbed browsing UI customization Support for WebExtensions Windows XP Compatibility
4126 Like

Google Chrome

a free web browser developed by google from the open source chromium project with a focus on speed and minimalism.

Free Mac OS X Windows Linux Android iPhone Android Tablet BSD Chrome OS

Extensible by Plugins/Extensions Integrated PDF Viewer Portable Android Sync Automatic Form Filler Based on Blink engine Built in Adobe Flash Player Based on Chromium Google integration Inspect Element Support for Javascript Support for QuickSync acceleration Place websites on desktop Supports H265 Codec User Levels Based on Webkit engine
1709 Like

Thunderbird

thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. the project strategy is modeled after mozilla firefox.

Free Open Source Windows Linux BSD Mac Haiku

Customizable Extensible by Plugins/Extensions Portable Integrated Chat Built in RSS reader Calendar integration Free API Import from Google Reader Integrated Web Browser Multiple Account support Export to OPML Import feeds from OPML POP3 Support Tabbed interface
1520 Like

Opera

Opera is a browser with innovative features, speed and security. Opera’s vision is to deliver the best Internet experience on any device and the company is committed to support and contribute to open standards.

Free Mac OS X Windows Linux Android Android Tablet BSD Windows Mobile S60

Built in Download Manager Customizable Extensible by Plugins/Extensions Portable Resume interrupted downloads Tabbed browsing Based on Blink engine Based on Chromium Sync between devices Multiple languages Built in RSS reader Tabbed interface Lightweight Privacy Protected Mouse gestures Built in VPN Dark mode Built in Ad blocker
673 Like

Vivaldi Browser

A browser for our friends. Fast, feature rich and highly customizable that puts the users first.

Free Mac OS X Windows Linux

Customizable Privacy focused Tabbed browsing UI customization Based on Blink engine Based on Chromium Sync between devices Tabbed interface Support for Keyboard Shortcuts Support for Themes Google Chrome extension Dark theme Mouse gestures Capture web pages Split screen view Opera like Tab Control Group tabs Tab preview Tab Stacking
242 Like

Maxthon Cloud Browser

Maxthon is a browser with innovative features, speed and security.

Free Mac OS X Windows Linux Android iPhone Android Tablet iPad

Built in Download Manager Extensible by Plugins/Extensions Portable Tabbed browsing Built in RSS reader Built in Ad blocker Support for gestures
120 Like

KompoZer

Easy Web Authoring! KompoZer is a complete web authoring system that combines web file management and easy-to-use WYSIWYG web page editing.

Free Open Source Mac OS X Windows Linux

Portable Multiple languages WYSIWYG Support Support for SFTP
119 Like

Microsoft Edge

Microsoft Edge, initially developed under the codename Project Spartan, is a web browser in development by Microsoft.

Free Windows Android iPhone Windows Phone

Extensible by Plugins/Extensions Integrated PDF Viewer Built in viewer Reading list Set Tabs aside
117 Like

Yandex.Browser

yandex.browser is a simple and easy-to-use internet browser. based on the https://alternativein .

Free Mac OS X Windows Linux Android iPhone Android Tablet iPad

Integrated PDF Viewer Based on Blink engine Based on Chromium Mouse gestures
113 Like

Konqueror

Konqueror is an Open Source web browser powered by the KHTML rendering engine (and optionally Webkit) which means it supports the latest web standards such as HTML5, Javascript, CSS3, and others.

Free Open Source Windows Linux BSD Mac KDE

Integrated PDF Viewer Based on Webkit engine Based on Firefox
92 Like

Firefox Developer Edition

Firefox Developer Edition brings your core dev tools together with some powerful new ones that will extend your ability to work across multiple platforms from one place. It’s everything you’re used to, only better. Available in 64-bit.

Free Open Source Windows Linux Mac

Portable Based on Firefox
90 Like

UC Browser

UC mobile offers free and easy to use browsers for almost any mobile phone.

Free Open Source Windows Android iPhone Blackberry Windows Mobile Java Mobile S60 Windows S

Built in Download Manager Tabbed browsing Built in RSS reader Night mode Facebook integration Twitter integration Evernote integration MultiTouch Built in Ad blocker Downloading all type of files
81 Like

GNOME Web

GNOME Web is the web browser for the GNOME desktop, based on the popular WebKit engine. It offers a simple, clean, beautiful view of the Web featuring first-class GNOME desktop integration. Its code name is Epiphany.

Free Open Source Linux BSD

Integrated PDF Viewer Place websites on desktop Based on Webkit engine Lightweight Mouse gestures Built in Ad blocker
57 Like

Sleipnir

Sleipnir is a Japanese tabbed web browser, released by Fenrir Inc. It is designed to be a highly customizable browser that you can configure to suit your individual needs.

Free Mac OS X Windows Android iPhone iPad Windows Phone

Tabbed browsing Built in RSS reader Tabbed interface Dropbox integration Facebook integration Twitter integration
54 Like

Otter Browser

Web browser controlled by the user, not vice-versa. Otter Browser is a project aiming to recreate best aspects of classic Opera (12.x) UI using Qt5.

Free Open Source Mac OS X Windows Linux BSD Haiku

Built in Download Manager Extensible by Plugins/Extensions Tabbed browsing Content Filtering Mouse gestures
53 Like

BlueGriffon

An HTML editor based on Mozilla rendering engine. Supports some CSS3 features and since recently has a built-in SVG editor.

Freemium Open Source

WYSIWYG Support Based on Firefox Built in editor
40 Like

Slimjet

Slimjet is a fast, smart and powerful web browser based on the Blink engine. It is built on top of the Chromium open source project, on which Google chrome is also based.

Free Windows Linux

Built in Download Manager Portable Capture Screen / Take screenshots Based on Blink engine Based on Chromium Facebook integration Mouse gestures Built in Ad blocker Integrated Form filler
18 Like

Microsoft Mail and Calendar

windows 10 has mail and calendar apps already built in.

Free Windows Windows RT
8 Like

xScope Browser

xScope Browser is a fast way to browse the web and your files. [An early paid version of xScope browser (version 6.5) is available for FREE at https://plus.google.com/118418683722370457392/posts/KXrg1RacMGH ].

Freemium Android Android Tablet

Tabbed browsing Built in File Manager MultiTouch
4 Like

Exsoul Web Browser

Exsoul Web Browser makes your browsing faster and richer and has usability which ensures the comfortable Internet use. Features: - Go back or forward across several histories at once. - Search contents on several search engines.

Freemium Android Kindle Fire

Tabbed browsing Multiple languages Export to PDF

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SeaMonkey

Links to official SeaMonkey sites

Features

Categories

Tags

The Best 116 SeaMonkey Alternatives

Mozilla Firefox

Google Chrome

Thunderbird

Opera

Vivaldi Browser

Maxthon Cloud Browser

KompoZer

Microsoft Edge

Yandex.Browser

Konqueror

Firefox Developer Edition

UC Browser

GNOME Web

Sleipnir

Otter Browser

BlueGriffon

Slimjet

Microsoft Mail and Calendar

xScope Browser

Exsoul Web Browser

Search app for alternative

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