Feel Safe Again

Encrypted group chat and file sharing for teams and businesses.

Reliable backup for your home, small business, or enterprise. #1 for ransomware protection.

Semaphor: Encrypted chat ONE: Secure Backup

For over ten years, SpiderOak has been committed to Zero Knowledge cloud solutions for people who care about privacy and security.

Protect yourself from ransomware

Get unlimited backup for $149/yr*

If you're looking for easy and affordable ransomware protection, backing up your data is one of the smartest decisions you can make. Take 15 minutes today to protect your most important files:

See the Unlimited backup deal

*Offer ends Jan. 31. For other plans, view our price list.


10 years of innovation

For over ten years, SpiderOak has built Zero Knowledge solutions for people, teams, and businesses who care about privacy and security. We stake our reputation on no-compromise, feature-rich, end-to-end encrypted solutions. See for yourself:

>View our recent press coverage


Zero Knowledge

Our systems have Zero Knowledge of your data. Your files, folders, photos - you name it - are end-to-end encrypted, 100% private, and only readable by you. No plaintext data, no keys, or file metadata is ever stored on our servers. This ensures absolute confidentiality.

Backup for Groups

For teams and small businesses. Sign up for a free 14-day trial or take a quick tour to see if it's the right fit for you.

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Enterprise Backup

Scalable and flexible hosting for your company's most important information. Ideal for 100 employees or more.

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Something to Protect

Privacy online seems to get a bad rap. We're told, "the only people who care about privacy are those who have something to hide." Well, we emphatically disagree. The notion we should not care about privacy is largely promoted by companies who depend on you being their product. It's not about what people want to hide, it's really about being able to choose that your life's work is worth protecting.


Encrypted group chat and file sharing for teams

Discover Semaphor

Spideroak ONE

Reliable, encrypted backup for everything at home and work

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Carefree, Simple, encrypted password manager


  • Keep track of all of your passwords
  • Strong password generator
  • Quick search
  • Sync across all of your devices
  • Manage your personal information