Browse free open source JavaScript Email Clients and projects below. Use the toggles on the left to filter open source JavaScript Email Clients by OS, license, language, programming language, and project status.

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  • 1
    Tutanota

    Tutanota

    Open source email service with a strong focus on security and privacy

    Tutanota is an open source email client focused on security and privacy. It is built with end-to-end encryption and 2FA, so you can be assured of utmost email security. Tutanota is always encrypted, so whether you’re using their secure webmail client, mobile apps or desktop clients, you can be sure to communicate securely.
    Downloads: 5 This Week
    Last Update:
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  • 2
    SaltOS

    SaltOS

    SaltOS, ERP, CRM, Business Management Suite, Josep Sanz Campderrós

    SaltOS is a Business Management solution 100% Cloud Computing. It integrates features like CRM (Customer Relation Management) and ERP (Enterprise Resource Planning). Moreover is it licensed as 100% free software GPL-3.0.
    Downloads: 3 This Week
    Last Update:
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  • 3
    Downloads: 6 This Week
    Last Update:
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  • 4
    IGSuite - Integrated Groupware Suite

    IGSuite - Integrated Groupware Suite

    IGSuite is a web-ajax-based Integrated Groupware Suite

    IGSuite is a web-based Integrated Groupware Suite oriented to be a CRM solution. In the Suite you can find: IGWebMail, IGCalendar, IGContacts, IGArchive, IGWiki, IGTodo, IGChat, Projects, IGFax an HylaFax client, IGFileManager, IGMsg and many other.
    Downloads: 2 This Week
    Last Update:
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  • 5
    EGroupware Enterprise Collaboration
    EGroupware has moved to Github, please find all our downloads there: https://github.com/EGroupware/egroupware/releases EGroupware is a multi-user, web-based groupware suite. Currently available modules include: email, addressbook, calendar, infolog (notes, to-do's, phone calls), content management, wiki, project management, tracker, timesheet, knowledge base, CalDAV/CardDAV
    Downloads: 1 This Week
    Last Update:
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  • 6
    Enhanced packages of Mozilla products for OS/2 and eComStation.
    Downloads: 3 This Week
    Last Update:
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  • 7
    AfterLogic WebMail Lite 7
    AfterLogic WebMail Lite PHP is a free AJAX webmail application. Users can receive, view, manage, compose, and send email through web interface (IMAP and SMTP supported). Source code included.
    Downloads: 1 This Week
    Last Update:
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  • 8
    Bulk Newsletter Mailer (BNM)

    Bulk Newsletter Mailer (BNM)

    BNM helps you design and send massive emails in HTML format

    Bulk Newsletter Platform(BNM) provides the components necessary to send bulk email in HTML format. BNM is written in PHP and it is appropriate to work either standalone on a server or embeded in an existent website. It is an easy to use, marketing tool which allow the user to create and send massive advertisements and newsletters in HTML to his mailing list.
    Downloads: 1 This Week
    Last Update:
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  • 9
    Spamato is a spam filter system that combines several anti-spam techniques, from which thousands of users benefit. It is available as an add-on for Thunderbird and Outlook, and as a stand-alone proxy for other email clients. IMAP and POP are supported.
    Downloads: 1 This Week
    Last Update:
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  • 10
    Thunderbird extension for checking grammar using LanguageTool facilities. NOTE: The project has been moved to GitHub: https://github.com/nuald/thb-gramchecker The old one stays here just for the historical reasons.
    Downloads: 1 This Week
    Last Update:
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  • 11
    A nice system wide software to display notifications like Growl for Mac on Windows is Snarl fullphat.net.Find here various plugins and apps which add Snarl support to different apps
    Downloads: 1 This Week
    Last Update:
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  • 12
    Deus Ex Email Client
    An email client written in php that emulates the look and feel of the email client shown in the game after hacking into the terminal. The email client hosts a few augmentations that differentiate it from the game version including sending simple emails and replies, email expanding, deletion, draggable windows and customizable graphics.
    Downloads: 1 This Week
    Last Update:
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  • 13
    We provide a Hebrew version of Mozilla Firefox, Mozilla Thunderbird, SeaMonkey and Mozilla Application Suite. SeaMonkey/Mozilla Suite are also available for download from here, while the latest Firefox & Thunderbird are available only from mozilla.com.
    Downloads: 1 This Week
    Last Update:
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  • 14
    JAM Circle
    JAM Circle is a Kanban Application Platform on Eclipse RCP.Kanban is similar to sticky note.you can use it for GTD,Planning,Pull System using Kanban.It supports to send Card using XMPP and to define it\'s behavior using Script(JRuby and ECMAScript).
    Downloads: 1 This Week
    Last Update:
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  • 15
    NOTICE: Keep in mind that POP3ye is alpha software and by definition it is a long way from finished. POP3ye is a fully featured web-based e-mail client written in Object Oriented PHP 5. It ony supports the POP3 protocol.
    Downloads: 1 This Week
    Last Update:
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  • 16
    RainLoop Webmail (PHP)

    RainLoop Webmail (PHP)

    Simple, modern & fast web-based email client

    Modest system requirements, decent performance, simple installation and upgrade, no database required - all these make RainLoop Webmail a perfect choice for your email solution.
    Downloads: 1 This Week
    Last Update:
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  • 17
    Roles and Permissions
    This plugin adds to RoundCube the ability to easily give different permissions to users by creating a roles table and assigning users to it. This and other plugins may use its public function to register permissions and admin them with this plugin.
    Downloads: 1 This Week
    Last Update:
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  • 18
    ThunderRetract implements client-side eMail retraction into Thunderbird. This is done showing messages differences in original and retracted one. Support: thunderretract@gmail.com
    Downloads: 1 This Week
    Last Update:
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  • 19
    mailredirect

    mailredirect

    Allow to redirect (a.k.a. "remail") mail messages to other recipients

    The Mailredirect extension for Mozilla Thunderbird and Mozilla SeaMonkey adds the ability to redirect one or more email messages to one or more recipients. The feature of email redirecting is also known as remailing or resending. The extension is an answer for https://bugzil.la/12916
    Downloads: 1 This Week
    Last Update:
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  • 20
    a webbased desktop, which handles modules like email-app and so by a webclient. Today only for Mozilla like Browsers. Tester/Developer are welcome :) Check it out on http://x.nebulon.de/netdesk/
    Downloads: 1 This Week
    Last Update:
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  • 21
    6XMailer is a PHP POP3 mail reader with support for HTML mail, MIME attachments, embedded mail content, multilingual ready, and themes. It has an address book and centralized configuration file.
    Downloads: 0 This Week
    Last Update:
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  • 22
    AfterLogic WebMail Lite .NET
    Free and easy-to-use webmail script with AJAX interface. Supports POP3/IMAP accounts, SMTP, SSL. Users can check and send mail, use address book. Skins, non-English languages, UTF-8. MS SQL/MySQL/MS Access backends supported.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Archive This for Thunderbird
    "Archive This" is an add-on for the Thunderbird email client that provides shortcuts for filing messages into folders rapidly and efficiently.
    Downloads: 0 This Week
    Last Update:
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  • 24
    Attachment Reminder is an Add-On (extension) for Mozilla Thunderbird that scans outgoing email for user-defined keywords (or just use the default list), and prompts you if it looks like you wanted to attach a file but didn't.
    Downloads: 0 This Week
    Last Update:
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  • 25
    I often encountered an inability among users to think beyond SAP and MS. Goal of the project is to create a web based application management platform, which enables organisations to easily manage applications within the system.
    Downloads: 0 This Week
    Last Update:
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