Open Source Alternatives to Avast
12 open source Cybersecurity options similar to Avast, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.
Bitwarden57CybersecuritySanta Barbara, United States$130.0MOpen-source password manager for individuals, teams, and businesses.
Open source · Self-hostable
Backslash Security56CybersecurityTel Aviv, Israel$27.0MAgentic endpoint security for AI coding, providing visibility, governance, and real-time protection.
Open source
- Puck52Endpoint SecurityUnited States
Open-source, AI-driven endpoint investigation tool for security teams.
Open source · Self-hostable
0sec11CybersecurityAn applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.
Open source · Self-hostable
Falco10CybersecurityOpen-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.
Open source · Self-hostable
Socket64Software Supply Chain SecuritySan Francisco, United States$60.0MSocket is a software supply chain security company that proactively blocks malicious open-source packages and extensions in AI-driven software development.
Open source
Fleet Device Management55CybersecuritySan Francisco, USA$32.0MAutonomous endpoint management platform to counter AI-accelerated exploits.
Open source · Self-hostable
Slauth.io43EnterpriseAshburn, United States$1.5MArk Infotech offers Cybersecurity, AI/ML, Data Analytics, and IT consulting services, including the Slauth.io IAM Policy Copilot.
Open source · Self-hostable
OWASP38CybersecurityRaleigh, USAA global non-profit foundation dedicated to improving software security through open community collaboration.
Open source · Self-hostable
Umbrasec9CybersecurityIndependent defensive security research focused on detection engineering, threat analysis, and open-source tooling for defenders.
Open source
Openthreatgrid8CybersecurityOpen honeynet telemetry, responsible threat intelligence sharing, and reproducible security research workflows for defenders and researchers.
Open source
Ucoder2Developer ToolsWest Bengal, IndiaUCoder provides privacy-first developer tools and services, including an analytics solution and web development.
Open source