Open Source Alternatives to Backslash Security

30 open source Cybersecurity options similar to Backslash Security, 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.

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Snyk76
AI Coding AssistantBoston, United States$488.5M
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
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
OWASP38
CybersecurityRaleigh, USA
A global non-profit foundation dedicated to improving software security through open community collaboration.
Open source · Self-hostable
0sec11
Cybersecurity
An applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.
Open source · Self-hostable
Umbrasec9
Cybersecurity
Independent defensive security research focused on detection engineering, threat analysis, and open-source tooling for defenders.
Open source
ARMO56
EnterpriseTel Aviv, Israel$34.5M
ARMO provides an open-source Kubernetes security platform, Kubescape, for end-to-end security from development to production.
Open source · Self-hostable
Slauth.io43
EnterpriseAshburn, United States$1.5M
Ark Infotech offers Cybersecurity, AI/ML, Data Analytics, and IT consulting services, including the Slauth.io IAM Policy Copilot.
Open source · Self-hostable
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
ORY47
Identity & Access ManagementBerlin, Germany$17.0M
Open-source identity and authorization services for applications, offering composable and scalable IAM solutions.
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
ScyllaDB67
DatabasePalo Alto, United States$101.0M
ScyllaDB is a high-performance, low-latency NoSQL database for data-intensive applications, designed to scale with modern infrastructure.
Open source · Self-hostable
Chainguard62
CybersecuritySeattle, United States$385.0M
Secures the software supply chain with verifiable builds and open-source security tooling.
Open source · Self-hostable
Codefresh62
EnterpriseBrisbane, Australia$42.0M
Octopus Deploy provides a unified platform for continuous delivery, automating deployments, runbooks, and operations for modern applications.
Open source · Self-hostable
DragonflyDB61
DatabaseTel Aviv, Israel$21.0M
Source-available, multi-threaded Redis replacement for modern cloud workloads.
Open source · Self-hostable
Appwrite58
EnterpriseSan Francisco, United States$37.0M
Open-source backend-as-a-service platform for building scalable applications.
Open source · Self-hostable
WSO254
Artificial IntelligencePalo Alto, USA$63.0M
An open-source technology provider offering an open control plane for AI agents.
Open source · Self-hostable
WireMock53
Enterprise$6.5M
Industry-standard API simulation and mocking platform for reliable software development and testing.
Open source · Self-hostable
Archestra.AI50
Artificial IntelligenceLondon, United Kingdom$10.0M
An open-source platform enabling enterprises to securely connect sensitive data to AI agents.
Open source · Self-hostable
Noobaa41
EnterpriseSan Francisco, United States$5.0M
NooBaa provides an open-source, S3-compatible object storage platform for managing data across private and public clouds.
Open source · Self-hostable
Responsive35
EnterpriseSan Francisco, United States
Platform for developers building stateful reactive applications on the modern cloud with object store native databases.
Open source · Self-hostable
Amplication33
EnterpriseTel Aviv, Israel
Open-source Node.js backend development platform for accelerating application development.
Open source · Self-hostable
Faremeter22
Fintech
Open-source framework enabling autonomous AI agents to make frictionless web3 payments via web2 infrastructure.
Open source · Self-hostable
Agentjail10
Agentic AI
Policy guardrails for coding agents to block dangerous tool calls before they are fired.
Open source
Logz.io63
EnterpriseTel Aviv, Israel$132.0M
Logz.io provides an observability platform for cloud-native businesses, combining open-source tools for monitoring and security.
Open source · Self-hostable
Probo58
SMB SoftwareTel Aviv, Israel$2.5M
Open-source compliance solution for startups to achieve SOC 2, ISO 27001, and HIPAA.
Open source · Self-hostable
Odigos56
Enterprise$13.0M
Open-source project for instant distributed tracing and metrics using eBPF and OpenTelemetry.
Open source · Self-hostable
MetalBear56
Software DevelopmentSan Francisco, United States$12.5M
Open-core company building tools for modern backend engineers to ship faster and better.
Open source · Self-hostable
Fleet Device Management55
CybersecuritySan Francisco, USA$32.0M
Autonomous endpoint management platform to counter AI-accelerated exploits.
Open source · Self-hostable
OpenOps53
EnterpriseSan Francisco, United States$125K
No-code, open-source cloud automation platform for FinOps and custom solutions.
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
SnykSnyk is a developer security platform that helps software teams find and fix vulnerabilities in code, open source dependencies, containers, and cloud infrastructure.	AI Coding Assistant	Open source · Self-hostable	Boston, United States	$488.5M	76
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
OWASPA global non-profit foundation dedicated to improving software security through open community collaboration.	Cybersecurity	Open source · Self-hostable	Raleigh, USA	—	38
0secAn applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.	Cybersecurity	Open source · Self-hostable	—	—	11
UmbrasecIndependent defensive security research focused on detection engineering, threat analysis, and open-source tooling for defenders.	Cybersecurity	Open source	—	—	9
ARMOARMO provides an open-source Kubernetes security platform, Kubescape, for end-to-end security from development to production.	Enterprise	Open source · Self-hostable	Tel Aviv, Israel	$34.5M	56
Slauth.ioArk Infotech offers Cybersecurity, AI/ML, Data Analytics, and IT consulting services, including the Slauth.io IAM Policy Copilot.	Enterprise	Open source · Self-hostable	Ashburn, United States	$1.5M	43
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
ORYOpen-source identity and authorization services for applications, offering composable and scalable IAM solutions.	Identity & Access Management	Open source · Self-hostable	Berlin, Germany	$17.0M	47
FalcoOpen-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.	Cybersecurity	Open source · Self-hostable	—	—	10
ScyllaDBScyllaDB is a high-performance, low-latency NoSQL database for data-intensive applications, designed to scale with modern infrastructure.	Database	Open source · Self-hostable	Palo Alto, United States	$101.0M	67
ChainguardSecures the software supply chain with verifiable builds and open-source security tooling.	Cybersecurity	Open source · Self-hostable	Seattle, United States	$385.0M	62
CodefreshOctopus Deploy provides a unified platform for continuous delivery, automating deployments, runbooks, and operations for modern applications.	Enterprise	Open source · Self-hostable	Brisbane, Australia	$42.0M	62
DragonflyDBSource-available, multi-threaded Redis replacement for modern cloud workloads.	Database	Open source · Self-hostable	Tel Aviv, Israel	$21.0M	61
AppwriteOpen-source backend-as-a-service platform for building scalable applications.	Enterprise	Open source · Self-hostable	San Francisco, United States	$37.0M	58
WSO2An open-source technology provider offering an open control plane for AI agents.	Artificial Intelligence	Open source · Self-hostable	Palo Alto, USA	$63.0M	54
WireMockIndustry-standard API simulation and mocking platform for reliable software development and testing.	Enterprise	Open source · Self-hostable	—	$6.5M	53
Archestra.AIAn open-source platform enabling enterprises to securely connect sensitive data to AI agents.	Artificial Intelligence	Open source · Self-hostable	London, United Kingdom	$10.0M	50
NoobaaNooBaa provides an open-source, S3-compatible object storage platform for managing data across private and public clouds.	Enterprise	Open source · Self-hostable	San Francisco, United States	$5.0M	41
ResponsivePlatform for developers building stateful reactive applications on the modern cloud with object store native databases.	Enterprise	Open source · Self-hostable	San Francisco, United States	—	35
AmplicationOpen-source Node.js backend development platform for accelerating application development.	Enterprise	Open source · Self-hostable	Tel Aviv, Israel	—	33
FaremeterOpen-source framework enabling autonomous AI agents to make frictionless web3 payments via web2 infrastructure.	Fintech	Open source · Self-hostable	—	—	22
AgentjailPolicy guardrails for coding agents to block dangerous tool calls before they are fired.	Agentic AI	Open source	—	—	10
Logz.ioLogz.io provides an observability platform for cloud-native businesses, combining open-source tools for monitoring and security.	Enterprise	Open source · Self-hostable	Tel Aviv, Israel	$132.0M	63
ProboOpen-source compliance solution for startups to achieve SOC 2, ISO 27001, and HIPAA.	SMB Software	Open source · Self-hostable	Tel Aviv, Israel	$2.5M	58
OdigosOpen-source project for instant distributed tracing and metrics using eBPF and OpenTelemetry.	Enterprise	Open source · Self-hostable	—	$13.0M	56
MetalBearOpen-core company building tools for modern backend engineers to ship faster and better.	Software Development	Open source · Self-hostable	San Francisco, United States	$12.5M	56
Fleet Device ManagementAutonomous endpoint management platform to counter AI-accelerated exploits.	Cybersecurity	Open source · Self-hostable	San Francisco, USA	$32.0M	55
OpenOpsNo-code, open-source cloud automation platform for FinOps and custom solutions.	Enterprise	Open source · Self-hostable	San Francisco, United States	$125K	53