Open Source Alternatives to ProtonVPN

Real-time threat intelligence platform.

Open source

Piiano provides developer infrastructure for data protection and compliance, helping companies prevent data breaches and exfiltration at the code level.

Open source

Decentralized middleware protocol providing verifiable off-chain computation and privacy services for Web3 applications.

Open source

AI-powered cybersecurity solutions for enhanced data protection.

Open source

Commvault reframes cyber resilience with a focus on ResOps, securing data, protecting identity, and recovering clean systems.

Open source

Engineering systems that shape digital identity.

Open source

A privacy and security-focused mobile operating system based on Android.

Open source · Self-hostable

Kryptvakt offers a secure, decentralized platform for managing and sharing sensitive data.

Open source

ESET is a software company specializing in cybersecurity, founded in 1992 in Bratislava, Slovakia. ESET's security products are made in Europe and provide secur

Open source

Forter provides an AI-powered trust platform for digital commerce, preventing fraud and abuse while maximizing revenue.

Open source

Validates AI security stacks pre-production.

Open source

Snyk is a developer security platform that helps software teams find and fix vulnerabilities in code, open source dependencies, containers, and cloud infrastructure.

Open source · Self-hostable

Securely stores and manages passwords, secrets, and access for individuals, businesses, and AI agents.

Open source

OpenAI is an AI research and deployment company dedicated to ensuring that artificial general intelligence benefits all of humanity.

Open source

Cloud-based identity and access management platform for secure user authentication and application access.

Open source

Exabeam provides a cloud-native cybersecurity platform combining SIEM and UEBA to detect, investigate, and respond to threats using AI.

Open source

Automates security and compliance for growing businesses.

Open source

Customer identity and access management platform for developers and enterprises.

Open source

Secure, identity-based connectivity platform replacing VPNs, SASE, and PAM for modern teams and workloads.

Open source

Develops blockchain scaling solutions using STARK technology for Ethereum-secure, fast, and seamless user experiences.

Open source

A Mac app that combines local and cloud AI models, keeping user data on their hardware.

Open source

A platform providing data and insights on private and public companies, startups, and investors.

Open source

Data-driven cloud security platform providing automated threat detection and compliance across multi-cloud environments.

Open source

Cloud native security platform for prevention, detection, and response across the application lifecycle.

Open source

Provides identity-based secure access to infrastructure for engineers and machines.

Open source

Enterprise browser securing hybrid work and remote access across any device.

Open source

Leader in autonomous offensive security, providing AI-powered penetration testing and vulnerability assessment platforms.

Open source

SafeBreach offers a continuous security validation platform that simulates breach and attack scenarios to identify security gaps.

Open source

Real-time AI-powered cloud defense.

Open source

AI-powered GRC platform automating risk and compliance workflows for enterprises.

Open source

Intelligence-led cybersecurity company specializing in threat detection, incident response, and cyber defense.

Open source

Open network detection and response platform for cybersecurity.

Open source

Enterprise storage solutions offering high performance, 100% availability, and cyber resilience.

Open source

Blockchain data platform providing compliance, investigation, and risk management software for global institutions and governments.

Open source

No-code automation platform for security and IT teams to streamline workflows and enhance productivity.

Open source

Managed detection and response provider using AI and automation to enhance cybersecurity.

Open source

Security governance platform for low-code/no-code development, enabling IT and business freedom.

Open source

Threat intelligence company that operationalizes threat data to link cyber risks to business impact.

Open source

Cloud-native distributed SQL database for mission-critical applications requiring high availability and scalability.

Open source

Coro provides an all-in-one cybersecurity platform for mid-market organizations, defending against malware, ransomware, phishing, and other threats across devices, users, and cloud applications.

Open source

Developer-first security platform providing continuous AI-driven penetration testing and vulnerability remediation.

Open source

Prevention-as-a-Service for next-gen threat detection across email, web, and cloud apps.

Open source

AI-driven platform for securing AI workloads and cloud infrastructure with real-time, behavior-driven defense.

Open source

AI-powered network threat detection and response solutions for modern enterprises.

Open source

Cybersecurity company focused on securing AI and ML systems with innovative MLSecOps products.

Open source

Encrypted data orchestration for developers.

Open source

AI security platform to control AI behavior and accelerate enterprise GenAI adoption.

Open source

Proactive defense platform mapping security tools to threats and providing remediation plans.

Open source

AI-powered vehicle software intelligence for the entire automotive lifecycle.

Open source

Cloud-native cybersecurity company focused on threat detection using deception technology.

Open source

Enterprise cybersecurity platform that maps and secures the external attack surface.

Open source

Counter-drone technology provider enabling control and safety during rogue drone incidents.

Open source

The leading provider of hardware security keys.

Open source

Automated security alert triage and incident response platform for enterprises.

Open source

Precise open source security solution leveraging runtime application context.

Open source · Self-hostable

Blockchain security and auditing firm providing smart contract auditing, KYC, and security tools.

Open source

A privacy-focused browser and search engine that blocks ads and trackers, rewarding users with cryptocurrency.

Open source

Veracode provides a SaaS platform for application security testing and risk management.

Open source

Unified endpoint management platform that helps IT teams automate, manage, and secure their IT infrastructure.

Open source

Embedded wallet infrastructure for developers to build seamless and secure crypto experiences.

Open source