Showing 355 open source projects for "outlook"

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  • 1
    Outlook Google Calendar Sync

    Outlook Google Calendar Sync

    Sync your Outlook and Google calendars

    Offers calendar synchronization between Outlook and Google, including attendees and reminders. Completely free, no install necessary, works behind web proxies and actively developed. Supports all versions of Outlook from 2003 to 2019/Microsoft365 64-bit! Installable and portable options - even runs from a USB thumbdrive. Synchronises items in any calendar folder, including those shared with you.
    Downloads: 20 This Week
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  • 2
    Gpg4win

    Gpg4win

    GnuPG for Windows

    Gpg4win is the official Windows distribution of the GnuPG encryption ecosystem, providing an accessible graphical environment for secure email and file protection. It packages the GnuPG engine together with user-friendly tools such as certificate management utilities, Windows Explorer integration, and Outlook plugins, enabling encryption workflows without requiring command-line expertise. The suite supports both OpenPGP and S/MIME standards, allowing organizations and individuals to secure communications using widely recognized cryptographic methods. Users can easily encrypt, decrypt, sign, and verify files or entire folders directly from the Windows interface, making the software suitable for everyday business use. ...
    Downloads: 14 This Week
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  • 3
    Outlook CalDav Synchronizer

    Outlook CalDav Synchronizer

    Sync Outlook with Google, SOGo or any other CalDAV / CardDAV server

    Free Outlook Plugin, which synchronizes events, tasks and contacts between Outlook and Google, SOGo, NextCloud, Horde or any other CalDAV or CardDAV server. Supported Outlook versions are 2021, 2019, 2016, 2013, 2010 and 2007 and Office 365 for Desktop. This project was initially developed as a master thesis project at the University of Applied Sciences Technikum Wien, Software Engineering Degree program.
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    Downloads: 561 This Week
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  • 4
    tiny11builder

    tiny11builder

    Scripts to build a trimmed-down Windows 11 image

    Scripts to build a trimmed-down Windows 11 image - now in PowerShell. After more than a year (for which I am so sorry) of no updates, tiny11 builder is now a much more complete and flexible solution - one script fits all. Also, it is a steppingstone for an even more fleshed-out solution. You can now use it on ANY Windows 11 release (not just a specific build), as well as ANY language or architecture. This is made possible thanks to the much-improved scripting capabilities of PowerShell,...
    Downloads: 95 This Week
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  • 5
    Sogo

    Sogo

    SOGo is a very fast and scalable modern collaboration suite

    SOGo is an open-source groupware server that provides email, calendar, and contacts management with full web and mobile compatibility. It integrates with various email clients and supports enterprise collaboration.
    Downloads: 8 This Week
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  • 6
    GO Contact Sync Mod

    GO Contact Sync Mod

    Sync Outlook contacts and calendars with Google

    Please install the latest version >4.0, because it uses the new Google People API. The Google Contacts API is now deprecated and is scheduled for sunset on June 15, 2021. GO Contact Sync Mod synchronizes your Microsoft Outlook contacts with your Google Mail address book, including pictures, categories and contact notes. It also syncs your Outlook Calendar Appointments on demand to Google Calendar. This Mod fork adds many enhancements and bug fixes to the obviously dead project 'Go Contact Sync'. Minimum requirement for GO Contact Sync Mod is .NET 4.7.2 and Windows 7 (32 or 64 bit).
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    Downloads: 773 This Week
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  • 7
    LKY Office Tools

    LKY Office Tools

    Automate downloading, installing, and activating Office versions

    ...It provides both console and GUI (Mocreak) versions for seamless, one‑click Office deployment. Supports optional components installation: Word, Excel, PowerPoint, Outlook, OneNote, Access, Visio, Project, Publisher, Teams, OneDrive, Skype, etc. Detects system architecture and downloads matching Office builds. Supports at least 43 UI languages and multiple installation methods (online or local).
    Downloads: 10 This Week
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  • 8
    Foundation for Emails

    Foundation for Emails

    Design responsive HTML emails that work on any device & email client

    Foundation for Emails is a framework that allows you to create responsive HTML emails that work on any device and on any email client, even Outlook. All of its HTML/CSS components have been tested, ensuring consistency across every major email client. Foundation for Emails consists of a solid set of customizable components, including a fully responsive grid, typography, alignment classes and more. It also has a new templating language, Inky, that makes it easier than ever to write HTML emails. ...
    Downloads: 5 This Week
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  • 9
    Reinforcement Learning Course Materials

    Reinforcement Learning Course Materials

    Lecture notes, tutorial tasks including solutions

    Lecture notes, tutorial tasks including solutions as well as online videos for the reinforcement learning course hosted by Paderborn University. The source code for the entire course material is open and everyone is cordially invited to use it for self-learning (students) or to set up their own course (lecturers).
    Downloads: 1 This Week
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  • 10
    Socialite

    Socialite

    Socialite is an OAuth2 Authentication tool

    ...It is inspired by laravel/socialite , you can easily use it in any PHP project. The tool now supports the following platforms: Facebook, Github, Google, Linkedin, Outlook, QQ, TAPD, Alipay, Taobao, Baidu, DingTalk, Weibo, WeChat, Douyin, Feishu, Lark, Douban, Enterprise WeChat, Tencent Cloud, Line, Gitee, Coding. Users only need to create corresponding configuration variables, and then use tools to create authentication applications for each platform, and easily obtain the access_token and user-related information of the platform. ...
    Downloads: 3 This Week
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  • 11
    OpenAdapt

    OpenAdapt

    Open Source Generative Process Automation

    ...Boost team productivity in HR operations. Automate candidate sourcing using LinkedIn Recruiter, LinkedIn Talent Solutions, GetProspect, Reply.io, outreach.io, Gmail/Outlook, and more. Streamline legal procedures and case management. Automate tasks like generating legal documents, managing contracts, tracking cases, and conducting legal research with LexisNexis, Westlaw, Adobe Acrobat, Microsoft Excel, and more.
    Downloads: 5 This Week
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  • 12
    DocuSeal

    DocuSeal

    Open source DocuSign alternative

    ...Build fillable document forms using our pixel-perfect HTML API, reducing the time for creating personalized documents. DocuSeal Pro users can connect their Gmail or Outlook accounts to send all signing invitation emails from their connected email address under a custom domain. All email messages sent via DocuSeal are customizable. With our step-by-step form users have a smooth signing experience on small mobile screens. Also, you can upload documents and request signatures directly from your device.
    Downloads: 6 This Week
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  • 13
    Proton Mail Bridge

    Proton Mail Bridge

    Proton Mail Bridge application

    Proton Mail Bridge is a desktop application that runs in the background on Windows, macOS, and Linux to enable users to access their Proton Mail encrypted email accounts with traditional email clients like Outlook, Thunderbird, Apple Mail, and others via local IMAP/SMTP servers. Because standard IMAP cannot natively decrypt end-to-end encrypted messages, Bridge acts as a translator that downloads encrypted mail, decrypts it locally, and serves it to your preferred mail client over a local server, while encrypting outgoing messages before they’re sent to Proton’s servers. ...
    Downloads: 7 This Week
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  • 14
    Thunderbird for Android

    Thunderbird for Android

    Open Source Email App for Android (fka K-9 Mail)

    Thunderbird Android is the mobile counterpart of the popular Thunderbird email client, reimagined for Android phones and tablets so users can access, send, and organize email from multiple accounts with advanced features found in desktop clients. It embraces modern mobile UI design while supporting robust email protocols (IMAP/POP3) and standards like OAuth for secure logins to services such as Gmail, Outlook, or custom mail providers. The app is built to handle complex mailbox structures, threaded discussions, rich text and HTML content, attachments, and account synchronizations reliably even on cellular connections. With features like unified inboxes, background fetch, push notifications, and configurable swipe actions, Thunderbird Android aims to bring the power and flexibility of the desktop experience to your pocket. ...
    Downloads: 4 This Week
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  • 15
    Add to Calendar Button

    Add to Calendar Button

    The convenient JavaScript snippet to create buttons

    ...It's main goal is to keep this process as easy as possible at maximum compatibility. Simply define your button configuration and everything else is automatically generated by the script. Supporting calendars at Apple, Google, Microsoft (365, Outlook, Teams), Yahoo, and generic iCal.
    Downloads: 2 This Week
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  • 16
    Zero

    Zero

    Experience email the way you want with Mail0

    Zero is an open-source AI-driven email platform that empowers users to self-host their own modern mail application while still connecting to external providers like Gmail or Outlook, offering flexibility for personal and business communication. It combines a unified inbox experience with privacy-first architecture so your email data stays under your control without third-party tracking or data harvesting. The system enhances traditional email workflows by integrating AI assistance for tasks such as summarizing messages, suggesting replies, prioritizing conversations, and helping users manage their inbox more intelligently. ...
    Downloads: 0 This Week
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  • 17
    Emogrifier

    Emogrifier

    Converts CSS styles into inline style attributes in your HTML code

    ...This ensures proper display on email and mobile device readers that lack stylesheet support. This utility was developed as part of Intervals to deal with the problems posed by certain email clients (namely Outlook 2007 and GoogleMail) when it comes to the way they handle styling contained in HTML emails. As many web developers and designers already know, certain email clients are notorious for their lack of CSS support. While attempts are being made to develop common email standards, implementation is still a ways off. The primary problem with uncooperative email clients is that most tend to only regard inline CSS, discarding all style elements and links to stylesheets in link elements. ...
    Downloads: 2 This Week
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  • 18
    Adaptive Cards

    Adaptive Cards

    A new way for developers to exchange card content

    Adaptive Cards are platform-agnostic snippets of UI, authored in JSON, that apps and services can openly exchange. When delivered to a specific app, the JSON is transformed into native UI that automatically adapts to its surroundings. It helps design and integrate lightweight UI for all major platforms and frameworks. Modern digital life is hectic. Users are constantly switching between devices, apps, and services to get their job done. Adaptive Cards help you increase engagement and...
    Downloads: 0 This Week
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  • 19
    react-big-calendar

    react-big-calendar

    gcal/outlook like calendar component

    An events calendar component built for React and made for modern browsers (read: IE10+) and uses flexbox over the classic tables-ception approach. Styles can be found at: react-big-calendar/lib/css/react-big-calendar.css, and should be included on the page with the calendar component. Also make sure that your calendar's container element has a height, or the calendar won't be visible. Date internationalization and localization is hard and react-big-calendar doesn't even attempt to solve that...
    Downloads: 0 This Week
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  • 20
    Phish Alert  Button for Outlook

    Phish Alert Button for Outlook

    Free Outlook plugin to report phishing emails with one click

    ...Empower your users to become part of your phishing defense strategy with the free Phish Alert Button for Outlook.
    Downloads: 1 This Week
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  • 21
    NK2Edit

    NK2Edit

    Edit AutoComplete files of Microsoft Outlook

    NK2Edit is a powerful tool for editing the AutoComplete list (.NK2 files) in Microsoft Outlook. It allows users to modify, remove, or add email addresses stored in the NK2 file, making it easier to manage and repair corrupted or outdated AutoComplete data. The software supports various features such as exporting NK2 data to different formats, sorting records, and even adding records directly from the Outlook address book.
    Downloads: 20 This Week
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  • 22
    Mail PassView

    Mail PassView

    Extract lost email passwords

    Mail PassView is a small password-recovery tool that reveals the passwords and other account details for the following email clients: Outlook Express Microsoft Outlook 2000 (POP3 and SMTP Accounts only) Microsoft Outlook 2002/2003/2007/2010/2013/2016 (POP3, IMAP, HTTP and SMTP Accounts) Windows Mail Windows Live Mail IncrediMail Eudora Netscape 6.x/7.x (If the password is not encrypted with master password) Mozilla Thunderbird (If the password is not encrypted with master password) Group Mail Free Yahoo! ...
    Downloads: 59 This Week
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  • 23
    DavMail POP/IMAP/SMTP/Caldav to Exchange
    Ever wanted to get rid of Outlook ? DavMail is a POP/IMAP/SMTP/Caldav/Carddav/LDAP gateway allowing users to use any mail client with Exchange and Office 365, even from the internet through Outlook Web Access on any platform, tested on MacOSX, Linux and Windows
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    Downloads: 648 This Week
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  • 24
    Windows MBox Viewer

    Windows MBox Viewer

    Windows eml and mbox viewer.

    Free Windows Mbox Viewer. Gain access to mbox archives, single eml or single Outlook messages. View attachments and export single mails in eml format. Access large mbox files such as Google Takeout or Mozilla Thunderbird Archives. Development of mbox viewer continues now at github: https://github.com/eneam/mboxviewer **NOTE**: Windows Defender may sometimes report incorrectly that mbox-viewer contains malware.
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    Downloads: 1,384 This Week
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  • 25

    MyMailIndex

    Outlook Add-in for Windows

    ...> Daily receiving huge number of emails > Limited time to read emails > Receiving emails from many different persons > Want to get more from your emails without additional effort This Outlook Add-in is free, contains no advertisements, does not gather or send any data! How will it help you? 1. Fast identification of emails requiring attention - Read first most important emails - Not missing important email threads 2. Email Thread summary at a glance - 1 click view on who and when participated in the thread - Shows Positive and Negative sentiment per email 3. ...
    Downloads: 7 This Week
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