Privacy Tool GitHub Repositories (2026) · Open Source Tools

Cross-platform on-device AI toolkit

End-to-end encrypted notes, tasks, files, passwords, journal and bookmarks. Keyed by a 12-word BIP-39 phrase: no email, no password, no account to leak. The full client source for web, desktop and mobile is published, along with the encryption (XChaCha20-Poly1305, HKDF-SHA256, Ed25519) and the threat model, so the privacy claims are falsifiable.

Cross-platform open source VPN client built in Rust, with mixnet anonymity and WireGuard speed. Protects metadata, not just IP addresses. Zero-knowledge payments for unlinkable online activities.

Free, open-source application firewall for macOS. Little Snitch alternative with zero telemetry. Native SwiftUI world map, rules manager, DNS over HTTPS, pf-based blocking. Signed, notarized, MIT licensed.

A self-hosted dead man's switch for delivering encrypted messages (E2EE) to your loved ones — when you're gone or unresponsive.

Powerful privacy tool to lock apps from intruders

Privacy browser extension for opting out from web tracking via GPC

Local-first privacy toolkit. Map yourself against 400+ data brokers, send CCPA/GDPR deletion mail, and check password dumps — the vault never leaves your PC.

🔑 Free Offline-first Password Manager