Global Web Mail Usage Statistics and Market Share

We are tracking usage statistics and market share of 7 web technologies in Web Mail. In June 2024 the most popular web technology in Web Mail is RoundCube with 70% market share. In second place there is SquirrelMail with 12% market share. After that there are Zimbra with 10%, Outlook Web App with 3% and RainLoop with 3% market share. Top 5 web technologies together have 97% market share. The remaining 2 web technologies in Web Mail have a combined market share of 3%.

Web Mail Market Share in June 2024
About Web Mail

Web mail is an email client implemented as a web application running on a web server.

We are tracking 7 different technologies in Web Mail.

There are 4,544 websites using Web Mail in out database.

Web Mail Usage Statistics and Market Share in June 2024
Technologies in Web Mail
  • RoundCube RoundCube

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

  • SquirrelMail SquirrelMail

    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.

  • Zimbra Zimbra

  • Outlook Web App Outlook Web App

    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.

  • RainLoop RainLoop

    RainLoop is a web-based email client.

  • Sympa Sympa

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

  • CrossBox CrossBox

    CrossBox is a webmail client.

Web Mail Market Share History in Last 12 Months
Technology August 2023September 2023October 2023November 2023December 2023January 2024February 2024March 2024April 2024May 2024June 2024
RoundCube68.74%68.83%68.88%68.87%68.93%69.06%69.11%69.54%69.76%69.79%69.81%
SquirrelMail12.93%12.94%12.83%12.85%12.81%12.86%12.84%12.35%12.29%12.28%12.28%
Zimbra9.81%9.78%9.78%9.79%9.76%9.77%9.75%9.76%9.58%9.57%9.55%
Outlook Web App5.85%5.77%5.81%5.78%5.79%5.67%5.65%5.70%5.76%5.74%5.74%
RainLoop2.56%2.56%2.59%2.61%2.59%2.54%2.54%2.54%2.51%2.51%2.51%
Sympa0.06%0.06%0.06%0.06%0.06%0.07%0.07%0.07%0.07%0.07%0.07%
CrossBox0.04%0.04%0.04%0.04%0.04%0.04%0.04%0.04%0.04%0.04%0.04%