Open Source Security & Monitoring Tools

Alternative toBrave Browser

Privacy browser built with the Tor Project to minimize tracking

• 2,288 GitHub stars
• MPL-2.0Licence MPL-2.0

Alternative toAstrill VPN

TCP tunneling via Yandex Docs or WebRTC transports

• 2,227 GitHub stars
• GPL-3.0Licence GPL-3.0

Alternative toRollbar

Real-time error tracking with performance monitoring and traces

• 2,216 GitHub stars
• MITLicence MIT
• #Monitoring

Alternative toGoogle Maps

OpenStreetMap and Google data, no account, no Play Services

• 2,060 GitHub stars
• GPL-3.0Licence GPL-3.0

Alternative toDatadog

Open source agent that automates app deployment and monitoring

• 1,813 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toSplunk

Open source cloud-native SIEM on a security data lake

• 1,695 GitHub stars
• Apache-2.0Licence Apache-2.0
• #Security

Alternative toWorkOS FGA

Run fine-grained authorization with RBAC, ABAC, and ReBAC

• 1,335 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toGoogle Analytics

GDPR-compliant cookieless analytics with real-time dashboards

• 1,209 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative to1Password

Store passwords in an encrypted local database, no cloud account

• 884 GitHub stars
• Artistic-2.0Licence Artistic-2.0
• #Security

Alternative toSnyk

Security scanner for AI agents, MCP servers, and LLM codebases.

• 861 GitHub stars
• MITLicence MIT