Best Free Security Tools in 2026

Proton VPN offers Swiss-based privacy protection with a strict no-logs policy and open-source apps. The free tier provides unlimited bandwidth while paid plans unlock faster servers in 60+ countries. Security-conscious users trust Proton's transparent approach and integration with the broader Proton privacy ecosystem.

Descope is an authentication platform that enables passwordless login through passkeys, magic links, social login, and other methods. Provides drag-and-drop flows for user journeys.

JumpCloud is a cloud directory platform that unifies identity, access, and device management. Provides SSO, MFA, device management, and directory services from a single platform.

Sigstore is a free, open-source service designed to enhance the security of software supply chains. It provides tools and infrastructure for developers to cryptographically sign software artifacts, such as release files, container images, and binaries. This signing process creates a verifiable record of who built the software and what was included, making it difficult for attackers to tamper with code without detection. Sigstore aims to make software signing accessible and easy to use for all developers, eliminating the need for complex key management. It integrates with existing CI/CD pipelines and offers transparency logs for immutable, publicly auditable records of all signing events. This ensures that consumers of software can verify the authenticity and integrity of the software they use, mitigating risks like supply chain attacks and unauthorized modifications. The service is primarily for developers, open-source projects, and organizations that need to secure their software delivery process. By providing a robust and transparent mechanism for software provenance, Sigstore helps build trust in the software ecosystem and reduces the attack surface for malicious actors.