Today, the service comes with 15 gigabytes of storage.
Users can receive emails up to 50 megabytes in size, including attachments, while they can send emails up to 25 megabytes.
Gmail is a free, advertising-supported email service developed by Google.
Users can access Gmail on the web and using third-party programs that synchronize email content through POP or IMAP protocols.
In April 2018, Google introduced a new web UI for Gmail, available by opt-in for all Gmail users.
The new redesign follows Google's Material Design, and changes in user interface include the use of Google's Product Sans font.
In October 2012, Google added over 100 virtual keyboards, transliterations, and input method editors to Gmail, enabling users different types of input styles for different languages in an effort to help users write in languages that aren't "limited by the language of your keyboard.” Gmail's "basic HTML" version will work on almost all browsers.
The modern AJAX version is officially supported in the current and previous major releases of Google Chrome, Mozilla Firefox, Internet Explorer, Microsoft Edge and Safari web browsers on a rolling basis.
Gmail's interface also makes use of 'labels' (tags) – that replace the conventional folders and provide a more flexible method of organizing email; filters for automatically organizing, deleting or forwarding incoming emails to other addresses; and importance markers for automatically marking messages as 'important'.
The Gmail Labs feature, introduced on June 5, 2008, allows users to test new or experimental features of Gmail.
Users can enable or disable Labs features selectively and provide feedback about each of them.
Users were able to preview the new interface design for months prior to the official release, as well as revert to the old interface, until March 2012, when Google discontinued the ability to revert and completed the transition to the new design for all users.
In May 2013, Google updated the Gmail inbox with tabs which allow the application to categorize the user's emails.