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The 19 Best Free Alternatives to Outlook

Dominik Rapacki
CEO @meetergo
2 minutes reading time
Table of contents
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Microsoft Outlook is undoubtedly one of the most popular email programs on the market. It offers numerous features for managing emails, calendars, tasks, and more. However, there are situations where one looks for alternatives to Outlook, whether for cost reasons or specific requirements. In this article, we will present you with the 10 best free alternatives to Microsoft Outlook that will help you streamline your email communication.

Overview of Outlook Alternatives

There are numerous alternatives to Microsoft Outlook that fulfill different requirements. Thunderbird is a powerful email client with extensive features, while eM Client offers a user-friendly alternative for Windows and Mac. Gmail is a popular webmail platform by Google, and Zoho Mail is a free email service with advanced features. Yahoo Mail and Apple Mail are also popular options.

Thunderbird Logo

1. Thunderbird - A Powerful, Free Email Client

Thunderbird is a popular free email client developed by the Mozilla Foundation. It is available for both Windows and Mac. Thunderbird offers a wide range of features, including an intuitive user interface, powerful search functionality, filtering options, calendar integration, and the ability to install add-ons. With Thunderbird, you can manage multiple email accounts and easily access your emails.

eM Client

2. eM Client - A Free Outlook Alternative for Windows and Mac

eM Client is a free email client for Windows and Mac that offers a user-friendly interface and extensive features. In addition to email management, eM Client allows you to manage calendars, tasks, and contacts. The program supports integration with Google Mail, Exchange, and other email services. eM Client stands out for its user-friendliness and stability, making it a great choice for those seeking a free alternative to Outlook.

Gmail icon

3. Gmail - The Popular Webmail Platform by Google

Gmail needs no introduction as it is one of the most popular webmail platforms developed by Google. It offers a user-friendly interface, powerful search capabilities, and ample storage space. Gmail comes with advanced features such as labels, filters, and the ability to organize emails into different categories. It also integrates seamlessly with other Google services, such as Google Calendar, Google Drive, and Google Docs. With Gmail, you can access your emails from anywhere with an internet connection and enjoy reliable email management features.

zoho mail logo

4. Zoho Mail - Free Email Service with Extensive Features

Zoho Mail is a free email service that offers a wide range of features for personal and business use. With Zoho Mail, you can manage emails, schedule calendar events, track tasks, and organize contacts. The user-friendly interface and collaboration tools make Zoho Mail an attractive alternative to Microsoft Outlook. Whether you need it for personal use or for your business, Zoho Mail provides a reliable and feature-rich email experience.

Yahoo Mail

5. Yahoo Mail - Popular Free Email Service

Yahoo Mail is a well-known free email service that offers a wide range of features and options. In addition to email management, Yahoo Mail allows you to filter emails, create custom folders, and schedule calendar events. Yahoo Mail also provides generous storage space and a user-friendly interface. Whether you use it for personal or professional purposes, Yahoo Mail is a popular choice for free email services.

apple mail logo

6. Apple Mail - The Integrated Email App for Mac Users

Apple Mail is the integrated email app designed for Mac users. It offers seamless integration with other Apple services and features an intuitive user interface. Apple Mail allows for easy email management, creation of smart mailboxes, scheduling calendar events, and storing contacts. As a native app, Apple Mail provides a smooth and cohesive email experience for Mac users.


7. GMX - Free Email Service with Advanced Features

GMX is a free email service that provides a range of advanced features. In addition to email management, GMX offers extensive filtering options, the ability to import emails from other email clients, and integration with cloud storage services like Dropbox. With GMX, you can also manage multiple email addresses and access your inbox from various devices. GMX offers a feature-rich email experience for users looking for a free email service with additional functionality. logo

8. - The Free Web Version of Microsoft Outlook

Yes, you read that correctly! is the free web version of Microsoft Outlook. It offers a similar interface and features to the desktop version of Outlook. With, you can send and receive emails, manage a calendar, store contacts, and much more. It is a good option for those who prefer the look and feel of Microsoft Outlook but are looking for a free solution.

SeaMonkey icon

9. SeaMonkey - An Extensive Internet Suite Program

SeaMonkey is an open-source software that offers an internet suite program with an email client, web browser, HTML editor, and more. SeaMonkey provides a comprehensive solution for those who are looking for more than just an email client. It is compatible with Windows, Mac, and Linux, allowing you to perform various tasks such as email management, browsing, and web development in one place. SeaMonkey is a versatile option for individuals seeking an all-in-one internet suite program.


10. Postbox - A Powerful Email Client for Windows and Mac

Postbox is an email client for Windows and Mac that offers a wealth of features. In addition to email management, Postbox provides integrated tools for organizing tasks, calendars, and notes. Postbox also allows for seamless integration with Google Workspace, Exchange, and other email services.

HCL Notes Logo

11. HCL Notes (formerly IBM Notes)

HCL Notes is a powerful email client specifically designed for businesses. In addition to easy email management, HCL Notes offers extensive collaboration features such as team calendars, shared contacts, and task management. This allows teams to collaborate effectively and seamlessly share information. The platform also allows integration with other business applications to ensure a smooth workflow. HCL Notes is a comprehensive solution for organizations seeking robust email and collaboration capabilities.


12. Spike

Spike is an innovative email client that combines emails, chat, and collaboration into a single platform. Instead of using separate applications for email and chat, users can view emails in a conversation-oriented view and respond directly to messages with Spike. Spike also offers features such as task lists, file sharing, and team collaboration, enhancing efficiency and productivity. With its integrated approach, Spike aims to streamline communication and make managing emails and collaborating with teams more seamless.

Spark Mail Logo

13. Spark

Spark is an intelligent email client available for Mac, iOS, and Android. It stands out with its user-friendly interface and features that prioritize productivity and teamwork. With Spark, you can intelligently organize emails, set priorities, and delegate tasks. The integration with calendars and cloud storage services makes scheduling and collaborative work easier. Spark aims to enhance email management and facilitate seamless collaboration, making it a popular choice for users looking for an efficient and productivity-focused email client.

Mailfence logo

14. Mailfence

If security and privacy are top priorities, Mailfence is a great choice. This email service offers end-to-end encryption for all emails, ensuring that only you and the recipient can access the content. Mailfence also provides features like digital signatures, secure online storage, and secure calendars. With Mailfence, you can send and receive emails confidentially without compromising on privacy. It is a reliable option for individuals and organizations that value strong security measures for their email communications.

Roundcube - Free and Open Source Webmail Software

15. Roundcube

Roundcube is a free, open-source webmail platform that offers a simple user interface and plenty of customization options. With Roundcube, you can send, receive, and organize emails through a web browser. It provides basic features like folder management, contact management, and calendar integration. Roundcube is a good choice for those seeking a user-friendly and customizable webmail solution. Its open-source nature also allows for community contributions and enhancements to the platform.


16. Claws Mail

Claws Mail is a minimalist email client that is lightweight and cross-platform, available for Windows, Mac, and Linux. It offers basic features for email management without unnecessary frills. Claws Mail focuses on efficiency and speed, making it ideal for users with older hardware or those who prefer a simple and resource-friendly email solution. Despite its minimalistic approach, Claws Mail still provides essential functionalities for effective email communication.


17. Mailspring

Mailspring is a powerful email client with advanced features such as email tracking and automation. With Mailspring, you can better organize and manage the sending and receiving of emails. The application also offers features for monitoring email responses, automatic email replies, and more. Mailspring enables you to optimize your email communication and work more efficiently. It is a feature-rich option for users who require advanced functionality and automation capabilities in their email client.

ProtonMail Logo

18. ProtonMail

ProtonMail is a secure email service that provides end-to-end encryption, ensuring the confidentiality of your emails and protecting your privacy. ProtonMail offers features like self-destructing messages, password-protected emails, and secure attachments. If security is of utmost importance to you, ProtonMail is an excellent choice. It is designed to prioritize privacy and provide a secure environment for your email communications.

Mailbird Logo

19. Mailbird

Mailbird is a powerful email client for Windows that offers a variety of features. With Mailbird, you can manage emails, calendars, tasks, and contacts all in one place. The user-friendly interface and integration with various apps and services make Mailbird a great alternative to Outlook.

With these email clients, you have a wide selection to find the solution that suits you best. Whether you're looking for advanced features, security, or a simple user interface, there is an alternative to Microsoft Outlook that meets your needs.

meetergo | Logo

Bonus: meetergo - Online Scheduling Tool for efficient scheduling

meetergo is an online appointment scheduling tool that helps you quickly and easily find a suitable meeting time. The tool offers a range of features to make appointment scheduling more efficient and time-saving.

Easy-to-use and Appointment Scheduling

meetergo allows you to set up your personal appointment booking profile where you can specify your availability, preferred duration, and purpose of the meeting. You can link your profile to your calendar, whether it's Outlook, Google Calendar, or another calendar service. meetergo automatically synchronizes your availability and prevents double bookings.

Intuitive Interface and Integrations

With a user-friendly interface, meetergo provides easy navigation and allows your clients or colleagues to effortlessly book appointments with you. The tool offers integrations with popular email programs and communication tools such as Outlook, Slack, and other office tools. You can embed the appointment calendar directly in emails, seamlessly integrating the booking process into your existing communication workflows.

Flexible Customization and Data Privacy

meetergo offers the ability to customize your appointment booking profile according to your individual requirements. You can expand the tool's functionality to suit your needs and integrate important features like tasks and notes into the booking process. Additionally, meetergo places great emphasis on data privacy and provides options for encrypting data transmissions to ensure the security of your information. Compared to Calendly, meetergo is 100% GDPR compliant.

Paid Options and Free Version

meetergo offers both paid and free options. The free version allows for basic use of the tool, while paid plans provide additional features and advanced capabilities. You can choose the plan that suits you best depending on your requirements and the extent of your usage.

Overall, meetergo offers a convenient solution for appointment scheduling, allowing you to make the booking process more efficient. Whether you work in a team, maintain customer contacts, or simply manage your personal appointments, meetergo supports you in organization and facilitates the coordination of schedules.


Overall, there are many excellent alternatives to Microsoft Outlook that cater to the needs of different users. While Outlook is a popular email program, it may not always provide the desired features or align with individual preferences. The showcased alternatives such as HCL Notes, Spike, Spark, Mailfence, Roundcube, Claws Mail, Mailspring, ProtonMail, Mailbird, and meetergo each offer unique features, user-friendliness, security, and customization options.

Before choosing an alternative, it's important to consider your own requirements and preferences. The availability of a free version, integration with other tools or platforms, security features, availability on different operating systems, as well as the user interface and design are just some of the factors to consider when selecting an Outlook alternative.

Ultimately, the goal is to make email communication efficient, productive, and secure. By considering an alternative to Outlook, you can expand functionality, utilize new features, and potentially even save costs. The presented alternatives provide a wide range of options, enabling everyone to find the email program that best suits their individual needs.

Whether for personal use or for businesses, it's worth exploring and trying out different alternatives to find the email program that suits you best. With the diverse options available today, there is certainly an Outlook alternative that meets your requirements and provides a pleasant email experience.

Imagine Calendly + Typeform had a Baby
Your New Secret Weapon is Here!

See the Magic ✨

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