Proton Mail
End-to-end encrypted email service / From Wikipedia, the free encyclopedia
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Proton Mail (previously written as ProtonMail) is a Swiss end-to-end encrypted email service founded in 2013 headquartered in Plan-les-Ouates, Switzerland.[7] It uses client-side encryption to protect email content and user data before they are sent to Proton Mail servers, unlike other common email providers such as Gmail and Outlook.com.[8] The service can be accessed through a webmail client, the Tor network, Windows, macOS and Linux (beta) desktop apps[9] and iOS and Android apps.[10]
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![]() Screenshot of the Proton Mail website, showing the conversation view of a message in a user's inbox | |
Available in | English, Catalan, Chinese, Dutch, French, German, Hungarian, Italian, Japanese, Polish, Romanian, Russian, Spanish, Turkish, Portuguese, Ukrainian |
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Headquarters | |
Owner | Proton AG |
URL | proton |
Commercial | No |
Registration | Required |
Users | 100 million (April 2023)[2] |
Launched | May 16, 2014; 10 years ago (2014-05-16) |
Current status | Online |
Repository | github |
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Written in | TypeScript and Go |
License | GNU GPLv3[3][4][5][6] |
Website |
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Proton Mail is run by Proton AG (formerly Proton Technologies), which is based in Plan-les-Ouates, Switzerland.[1] The company also operates Proton VPN, Proton Drive, Proton Calendar and Proton Pass. Proton Mail received initial funding through a crowdfunding campaign. Although the default account setup is free, the service is sustained by optional paid services. Initial membership was by invitation only; however, beginning in March 2016, Proton Mail was opened to the public. Acquiring more than two million users by 2017,[11] membership grew to almost 70 million by 2022.[12]