The Ivy Cyber team builds PrivacySafe, privacy-by-design software for home and business. Install it on:

• 💻 Windows (checksum)
• 🍏 Mac OS (checksum)
• 🐧 GNU/Linux (checksum)
• 🤖 TESTING for Android (checksum)

Sign up FREE at @privacysafe.xyz, go Gold PRO at @privacysafe.me, or Platinum VIP at @privacysafe.gg. Techies can use their own domain and run our server code. Ivy Cyber can set it all up for your organization's own domain.

A secure zone that YOU own. Every app is 100% FLOSS (Free/Libre and Open Source Software) delivered through a secure software supply chain:

• PrivacySafe Contacts: Private Address Book Source
• PrivacySafe Chat: End-to-End Encrypted Video & Text Source
• PrivacySafe Treasure: Your Lockbox for What Matters — passwords, recovery phrases, payment cards, passports Source
• PrivacySafe Storage: Secure Shared Drive Source
• PrivacySafe Inbox: Encrypted Replacement for Email — kills phishing and ransomware for your team, still talks to the outside world Source
• PrivacySafe App Store: Secure Software Supply Chain Source

⚙️ Our design is purposefully modular and portable — you can even run our apps as portable apps off a USB key. We publish 100% of our client and server code.

🏅 Protocols at IEEE: Our protocols are hosted by IEEE SA Open. Our security benefits from testing and auditing by global experts.

Other client-side pieces:

• PrivacySafe Startup: Start PrivacySafe and sign up Source
• 3NWeb Client Library: YES we publish our libraries! Use them in your own apps. Source

Server-side:

• 3NWeb Spec Server: YES we publish our server! Run it on your own machine. Source

Get started right now, no install needed:

• PrivacySafe Social: No Ads, No Spyware, No AI Manipulation. Source
• PrivacySafe Search: Worry-Free Search Engine. Source
• PrivacySafe Bot: Secure Password & Passphrase Generator. Source

PrivacySafe Foundation is a 501(c)(3) nonprofit public charity that supports the development of the PrivacySafe applications, along with the components they rely upon: 3NWeb protocols, filesystem, documentation, and reference implementations.

Donations to the Foundation support education, research, documentation, and public code. Purchases from Ivy Cyber support PrivacySafe products, services, hosting, and technical support. Together, we're building a better web.

• Donate to PrivacySafe Foundation

Ivy Cyber offers PrivacySafe products and services in the USA, with partnerships with 3NSoft in Canada and Kuip Limited in the European Union. Enterprise services and consulting are available at ivycyber.com.

• Buy PrivacySafe products & services

• User Guides: For the apps we ship (Chat, Contacts, Treasure, Inbox, Storage, App Store).
• PrivacySafe VPN User Guide: For organizations where we deploy VPN services.
• Architecture Overview: PrivacySafe is built on the 3NWeb architecture, protocols, and formats. Mirrors a repo at IEEE.
• PrivacySafe Social Features: What differentiates our PrivacySafe Social instance on the decentralized Mastodon network.
• PrivacySafe Identity: Graphics, logos, fonts, and branding.

We keep our history public. These projects are online and their source stays available, but they are not part of the current PrivacySafe apps:

• PrivacySafe Locker: Share private files & memos. Source
• PrivacySafe Link: Secret notes that self-destruct after reading. Archives
• StickTock: Watch, download & share TikTok videos safely. Archives
• RefreshView Browser: Your internet refreshed, minimal & with no ads. Archives
• CertMagi.cc: Magic Certificates – documents and web pages stored on verified blockchain infrastructure. CertMagi.cc harnesses the power of IPFS, ENS, and the Tor Dark Web to ensure resistance to censorship, while still being easy to update or remove – something most blockchain solutions can't do. Archives

Contributions are welcome! Please fork, remix, and create pull requests. Happy Hacking 🤓

⚠️ Never send sensitive info about you or other users via direct message or email.

• Bugs & Security Issues: See SECURITY.md for more information.
• AI Contribution Policy: See AI_POLICY.md before submitting a PR.
• Report Abuse: Email abuse@privacysafe.net (PGP)

Bits On Tape is our newsletter: a replay of science and technology stories by cyber experts, covering cybersecurity, privacy, FLOSS, AI, and digital culture. We hate spam as much as you do.

© 2026 Ivy Cyber LLC. This project is dedicated to ethical Free/Libre and Open Source Software (FLOSS). PrivacySafe® and 3NWeb® are registered trademarks. PrivacySafe Foundation™ and Ivy Cyber™ are pending trademarks. Please see individual project repositories for licensing information.