A better internet starts with privacy and freedom

Take control of your data with end-to-end encryption.

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Password Manager

Cloud Storage

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VPN

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Storage

Proton Mail

Protect your inbox from spam, tracking, and ads with an encrypted email account.

Proton Mail

Protect your inbox from spam, tracking, and ads with an encrypted email account.

Proton Mail

Protect your inbox from spam, tracking, and ads with an encrypted email account.

Proton Mail

Protect your inbox from spam, tracking, and ads with an encrypted email account.

Proton Mail

Protect your inbox from spam, tracking, and ads with an encrypted email account.

Proton Mail

Protect your inbox from spam, tracking, and ads with an encrypted email account.

With Flyingstars One, your data belongs to you, not tech companies, governments, or hackers.

Flyingstars One was started in 2014 by scientists who met at CERN and shared a vision of an Internet that puts people first and defends freedom.

Our commitment to transparency, open-source software, and rigorous encryption has seen Proton become recommended by the United Nations and used by millions around the world.

Most tech companies, whether it’s Google or Apple, define privacy as “nobody can exploit your data except for us.” – We disagree. We believe nobody should be able to exploit your data, period.

Our technology and business are based upon this fundamentally stronger definition of privacy, backed also by Swiss privacy laws.

Privacy for a better world

At Flyingstars One, we believe that a better world begins with privacy, and our mission is at the heart of everything we do. Privacy isn’t just something we talk about; it’s a deeply held core belief and the reason Proton was created in the first place.


We believe in people before profits, and our primary shareholder is the non-profit Proton Foundation whose mission is to fight for an open internet that promotes freedom of speech and freedom of information.

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Over 10 million people and businesses have signed up for Flyingstars One

End-to-end encryption

Our end-to-end encryption and zero-access encryption means that no one (not even Proton) has the technical means to access your data without your permission.

We don’t sell ads and can’t share your data. At Proton, privacy isn’t a promise, it’s mathematically ensured.

Open source and audited

As a company created by former scientists, we believe strongly that trust is earned through transparency and peer review.

All our apps are open source and independently audited by security experts so that anyone can use them, inspect them, and trust them.

End-to-end encryption

Our end-to-end encryption and zero-access encryption means that no one (not even Proton) has the technical means to access your data without your permission.

We don’t sell ads and can’t share your data. At Proton, privacy isn’t a promise, it’s mathematically ensured.

Open source and audited

As a company created by former scientists, we believe strongly that trust is earned through transparency and peer review.

All our apps are open source and independently audited by security experts so that anyone can use them, inspect them, and trust them.

End-to-end encryption

Our end-to-end encryption and zero-access encryption means that no one (not even Proton) has the technical means to access your data without your permission.

We don’t sell ads and can’t share your data. At Proton, privacy isn’t a promise, it’s mathematically ensured.

Open source and audited

As a company created by former scientists, we believe strongly that trust is earned through transparency and peer review.

All our apps are open source and independently audited by security experts so that anyone can use them, inspect them, and trust them.

Our story begins at CERN, where the web was born

Proton was founded in 2014 by scientists who met at the European Organization for Nuclear Research (CERN) and shared a vision for a more secure and private Internet. We believe in technical excellence, integrity, and transparency.

Proton is led by scientists, including Sir Tim Berners-Lee, the inventor of the World Wide Web, and we work for the public good.

Our story begins at CERN, where the web was born

Proton was founded in 2014 by scientists who met at the European Organization for Nuclear Research (CERN) and shared a vision for a more secure and private Internet. We believe in technical excellence, integrity, and transparency.

Proton is led by scientists, including Sir Tim Berners-Lee, the inventor of the World Wide Web, and we work for the public good.

Choose an internet where your privacy comes first

One account for all Proton services.

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What the experts say about Proton

Forbes logo

Forbes

An alternative to the ad-based revenue model of free services like Gmail which actively scan your emails to deliver relevant ads to you online.
Forbes logo

Forbes

An alternative to the ad-based revenue model of free services like Gmail which actively scan your emails to deliver relevant ads to you online.
Forbes logo

Forbes

An alternative to the ad-based revenue model of free services like Gmail which actively scan your emails to deliver relevant ads to you online.
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Flyingstars One for Business

Secure your business

In addition to protecting millions of individuals, Proton secures more than 10,000 businesses, including some of the world’s largest public and private organizations.

Learn how Proton can improve the security of your business and comply with data protection and privacy laws.