Gmail is the email service provided by Google. As of 2019, it had 1.5 billion active users worldwide, making it the largest email service in the world.

Google engineer Paul Buchheit created and developed Gmail, initially known under the code name Caribou as a browser-based email program that allowed users to easily search their own messages; his work succeeded that of Raymond Samuel Tomlinson, an American computer programmer who implemented in 1971 the first email ...

Gmail is an email service owned by Google and part of Google Workspace. In contrast, Microsoft owns Outlook email, and it's included in the Microsoft 365 suite. Both Gmail and Outlook provide an email address and an interface to access your emails.

Buchheit began his work on Gmail in August 2001. At Google, Buchheit had first worked on Google Groups and when asked "to build some type of email or personalization product", he created the first version of Gmail in one day, reusing the code from Google Groups.