Best Web Free Security Software

The world’s most popular messaging app.

Secure, two‑factor Bitcoin wallet for mobile and web

Secure, Simple and Scalable Video Conferences

Bitwarden‑compatible vault hosted on Cloudflare Workers for free

Automate cloud security and compliance

A secure password manager for teams

Peer-to-peer file transfer with no size limits and nothing stored on servers

Single Sign-On Multi-Factor portal for web apps

Unified XDR and SIEM protection for endpoints and cloud workloads

Free, open-source password manager

Automate OSINT for threat intelligence and attack surface mapping

Free browser extension from EFF that learns to block hidden trackers as you browse.

Secrets detection for GitHub, GitLab and Bitbucket repositories

Fast and secure backup and versioning for files and directories

Network-wide ads & trackers blocking DNS server

A fast, secure Chromium‑based browser built for privacy.

Fast, secure, efficient backup program

A privacy‑focused browser with built‑in community comments.

High-performance reverse proxy for NAT traversal

Free backup software to store encrypted backups online

Secure password vault built for teams, with instant sharing and audit trails.

Secure authentication for Next.js apps

Battle‑tested Solidity library for secure smart contract development

Network-wide ad blocking DNS server for homes and small businesses