ProtonMail Alternatives

ProtonMail Alternatives

World's largest secure email service providing end-to-end encrypted email accounts. ProtonMail is based in Geneva, Switzerland and protected by Swiss privacy laws. The software is openly developed with fully open source code.

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According to people there are many software similar to it, and the best alternative to ProtonMail is Tutanota which is both freemium and open source. Other highly recommended applications include HEY (Commercial) , K-9 Mail (Free) and Thunderbird (Free).
In total people have suggested 16 alternatives to ProtonMail that share similarities by use case and feature set.


Tutanota is the world's most secure email service, easy to use and private by design. Tutanota brings secure email for everybody.

Freemium & Open Source
👍 Most people think Tutanota is a good alternative to ProtonMail.


HEY is a privacy focused commercial email provider. It brings a fresh approach and transforms email into something you want to use, not something you’re forced to deal with.

Commercial & Proprietary
👍 Most people think HEY is a good alternative to ProtonMail.

K-9 Mail

K-9 Mail is an open source email client focused on making it easy to chew through large volumes of email. K-9 Mail is designed for both novice and power users and offers lots of features for everyone. It provides features like Push IMAP Support, GPG & PGP/MIME support, Per Account Notifications, Unified Inbox, White and Dark Theme, and Signatures.

Free & Open Source
👍 Most people think K-9 Mail is a good alternative to ProtonMail.


A free an open-source email client developed openly by the Mozilla Foundation and the community. Thunderbird is easy to setup and customize and supports POP and IMAP. The email client comes with all features needed to search, filter, write and manage emails, but also have builtin support for live chat between contact and RSS/Atom feed reader.

Free & Open Source
👍 Most people think Thunderbird is a good alternative to ProtonMail.


Postbox is an email provider that supports a full suite of keyboard shortcuts, an extensive set of filters/rules, and intuitive swipe actions on macOS to dispatch messages with ease. You can try Postbox for free and enjoy an intuitive interfaces for managing your email that feels lika a native Mac or Windows application.


Mailpile is an effort to reclaim private communication on the Internet. A project to rescue our personal lives from the proprietary cloud and prevent our conversations from being strip-mined for corporate profit and government surveillance. With Mailpile you can take e-mail back and make it yours.

Free & Open Source


Mailbird is a desktop email client with an easy to use and intuetive interface. With Mailbird you can save time managing multiple accounts with the best email client for Windows and macOS.

Commercial & Proprietary


Arguably the most popular email service in the world, Gmail provides a email inbox for over 1.5 billion users. With Gmail you can create an email account for free that manages emails and contacts in the same application. Gmail is web-base but provides clients for mobile devices and supports third-party programs that synchronize email content through POP or IMAP protocols.

Free & Proprietary

Vivaldi Mail

Vivaldi Mail is free email service and email client that includes multi-account support, mailing lists, filters, flags, keyboard shortcuts, and labels. Vivaldi Mail is built by the people behind the Vivaldi web browser and is provided as advertisement free mail client.



Secure premium email service with mobile sync apps for calendar, contacts, tasks, notes and FISMA compliant email archiving.


ShazzleMail is the first privacy-protective and surveillance-resistant secure email service.


Yandex.Mail is an online email provider by the Russian internet giant Yandex. With Yandex.Mail you get secure protection from viruses and spam, mail sorting, highlighting of email from real people, free 10 GB of cloud storage on Yandex.Disk, beautiful themes.

Free & Proprietary

How Are These ProtonMail Alternatives Generated?

Information found on this page is crowd-sourced by the community and contains the most agreed upon ProtonMail alternatives. You can use this information to find similar software to ProtonMail for specific platforms with various pricing options and licenses. Anyone that have previously used ProtonMail can suggest alternatives, vote on the accuracy of other users claims, and help more people in the process of doing so.

This page was last updated on Sun 23 Jan 2022 (3 weeks, 1 day ago).