Webmail

Google Workspace

1.2M sites

Google Workspace, formerly G Suite, is a collection of cloud computing, productivity and collaboration tools.

Microsoft 365

1.1M sites

Microsoft 365 is a line of subscription services offered by Microsoft as part of the Microsoft Office product line.

Apple iCloud Mail

378.5K sites

Apple iCloud Mail is a webmail service provided by Apple, Inc.

Proton Mail

11K sitesSaaS

Proton Mail is the world’s largest secure email service with over 70 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.

RoundCube

1.4K sitesOpen source

RoundCube is free and open-source web-based IMAP email client.

Zimbra

1.2K sitesOpen source

Zimbra is a provider of open-source email and collaboration software, offering solutions for email, calendar, contacts, and collaboration for both individual and enterprise use.

Outlook Web App

110 sites

Outlook on the web is an information manager web app. It includes a web-based email client, a calendar tool, a contact manager, and a task manager.

Open-Xchange App Suite

17 sitesSaaSQuote

Open-Xchange is a web-based communication, collaboration and office productivity software suite.

SquirrelMail

13 sites

SquirrelMail is an open-source web-mail package that is based on PHP language. It provides a web-based-email client and a proxy server for IMAP protocol.

Sympa

11 sitesOpen source

Sympa is an open-source mailing list management (MLM) software.

CrossBox

8 sites

CrossBox is a webmail client.

RainLoop

4 sites

RainLoop is a web-based email client.

Zadarma

SaaSFreemium · $ · Subscription

Zadarma is a VoIP service that provides cloud-based voice communications for businesses, supporting internet calling, virtual phone numbers, and call management features.