Open source focus

Open Source Alternatives to Northfort

15 open source Cybersecurity options similar to Northfort, 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.

View all alternatives to Northfort →

Backslash Security56
CybersecurityTel Aviv, Israel$27.0M
Agentic endpoint security for AI coding, providing visibility, governance, and real-time protection.
Open source
K-Scale Labs40
Frontier AI LabSan Francisco, United States
Building general-purpose AI for a future of material abundance.
Open source · Self-hostable
CRAB27
Agentic AI
An open-source framework for building, operating, and benchmarking Multimodal Language Model (MLM) agents across diverse environments.
Open source · Self-hostable
AG
Agent4Rec20
Agentic AI
Simulates 1,000 LLM-powered agents for diverse movie recommendation preferences.
Open source
0sec11
Cybersecurity
An applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.
Open source · Self-hostable
Manhattan Reasoning7
AI Chip
Cloud silicon, open-source toolchains, and training environments where AI learns to design computer chips that are both correct and optimal.
Open source
Socket64
Software Supply Chain SecuritySan Francisco, United States$60.0M
Socket is a software supply chain security company that proactively blocks malicious open-source packages and extensions in AI-driven software development.
Open source
CIQ59
Artificial IntelligenceReno, United States$26.0M
Sponsors of OpenWALDO, a community-driven initiative for open-source AI training data, and provider of enterprise Linux, HPC, and AI infrastructure software.
Open source
Puck52
Endpoint SecurityUnited States
Open-source, AI-driven endpoint investigation tool for security teams.
Open source · Self-hostable
OWASP38
CybersecurityRaleigh, USA
A global non-profit foundation dedicated to improving software security through open community collaboration.
Open source · Self-hostable
Causari10
Agentic AI
Causari provides structured causal knowledge to AI agents for tracing cause and effect, finding historical patterns, and searching for impactful events.
Open source · Self-hostable
Falco10
Cybersecurity
Open-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.
Open source · Self-hostable
Umbrasec9
Cybersecurity
Independent defensive security research focused on detection engineering, threat analysis, and open-source tooling for defenders.
Open source
DocsGPT8
Open Source
Open-source AI platform for securely deploying intelligent agents, private enterprise search, and complex document workflows on an organization's own data.
Open source · Self-hostable
Openthreatgrid8
Cybersecurity
Open honeynet telemetry, responsible threat intelligence sharing, and reproducible security research workflows for defenders and researchers.
Open source

Company	Sector	License	HQ	Funding	Score
Backslash SecurityAgentic endpoint security for AI coding, providing visibility, governance, and real-time protection.	Cybersecurity	Open source	Tel Aviv, Israel	$27.0M	56
K-Scale LabsBuilding general-purpose AI for a future of material abundance.	Frontier AI Lab	Open source · Self-hostable	San Francisco, United States	—	40
CRABAn open-source framework for building, operating, and benchmarking Multimodal Language Model (MLM) agents across diverse environments.	Agentic AI	Open source · Self-hostable	—	—	27
AGAgent4RecSimulates 1,000 LLM-powered agents for diverse movie recommendation preferences.	Agentic AI	Open source	—	—	20
0secAn applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.	Cybersecurity	Open source · Self-hostable	—	—	11
Manhattan ReasoningCloud silicon, open-source toolchains, and training environments where AI learns to design computer chips that are both correct and optimal.	AI Chip	Open source	—	—	7
SocketSocket is a software supply chain security company that proactively blocks malicious open-source packages and extensions in AI-driven software development.	Software Supply Chain Security	Open source	San Francisco, United States	$60.0M	64
CIQSponsors of OpenWALDO, a community-driven initiative for open-source AI training data, and provider of enterprise Linux, HPC, and AI infrastructure software.	Artificial Intelligence	Open source	Reno, United States	$26.0M	59
PuckOpen-source, AI-driven endpoint investigation tool for security teams.	Endpoint Security	Open source · Self-hostable	United States	—	52
OWASPA global non-profit foundation dedicated to improving software security through open community collaboration.	Cybersecurity	Open source · Self-hostable	Raleigh, USA	—	38
CausariCausari provides structured causal knowledge to AI agents for tracing cause and effect, finding historical patterns, and searching for impactful events.	Agentic AI	Open source · Self-hostable	—	—	10
FalcoOpen-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.	Cybersecurity	Open source · Self-hostable	—	—	10
UmbrasecIndependent defensive security research focused on detection engineering, threat analysis, and open-source tooling for defenders.	Cybersecurity	Open source	—	—	9
DocsGPTOpen-source AI platform for securely deploying intelligent agents, private enterprise search, and complex document workflows on an organization's own data.	Open Source	Open source · Self-hostable	—	—	8
OpenthreatgridOpen honeynet telemetry, responsible threat intelligence sharing, and reproducible security research workflows for defenders and researchers.	Cybersecurity	Open source	—	—	8