Technical shortlist

Open-source security tools for technical teams

Start with the security control and threat model. Identity, secrets, network access, SIEM and endpoint protection address different risks; combining them in one list does not make them interchangeable.

For security engineers, platform teams, developers and sysadmins building layered controls with inspectable or self-hostable software.

Lead with the workload

The decision to make

Map every candidate to a defined control, owner and evidence source. Test detection or enforcement with a realistic scenario and document how updates, keys, logs and recovery are managed.

Directory fields in this matrix were refreshed through October 3, 2026. Follow each source link for current vendor information.

Available profiles

10 matching tools

All tools →
ToolDeploymentSource modelAPIPricing modelPrimary source
ElasticSelf-hostedOpen sourceAvailablefreemiumOfficial source ↗
NebulaSelf-hostedOpen sourceNot specifiedopen sourceOfficial source ↗
NetmakerSelf-hostedOpen sourceAvailableopen sourceOfficial source ↗
OpenBaoSelf-hostedOpen sourceAvailableopen sourceOfficial source ↗
OpenZitiSelf-hostedOpen sourceAvailableopen sourceOfficial source ↗
OrySelf-hostedOpen sourceAvailableopen sourceOfficial source ↗
SuperTokensSelf-hostedOpen sourceAvailableopen sourceOfficial source ↗
TeleportSelf-hostedOpen sourceAvailableopen sourceOfficial source ↗
ZeroTierSelf-hostedOpen sourceAvailablefreemiumOfficial source ↗
ZitadelSelf-hostedOpen sourceAvailableopen sourceOfficial source ↗
NetmakerNetwork Security

Netmaker, from Gravitl, is an open-source platform for building WireGuard-based virtual networks, mesh VPNs, and site-to-site connectivity, with a free self-hosted community edition (Apache 2.0) and paid Team/Business/Enterprise cloud tiers.

Open sourceSelf-hostedAPIopen source
OpenZitiCybersecurity

OpenZiti is an open-source overlay networking framework for zero-trust connectivity, letting developers embed secure, outbound-only network access directly into applications via SDKs. NetFoundry sponsors the project.

Open sourceSelf-hostedAPIopen source
OryIdentity & Access Management

Ory builds open-source identity infrastructure — Kratos (identity/auth), Hydra (OAuth2/OIDC), Keto (permissions), and Oathkeeper (API gateway) — plus Ory Network, a managed cloud service with a free developer tier and paid production plans from $770/year.

Open sourceSelf-hostedAPIopen source
TeleportIdentity & Access Management

Teleport provides identity-based, zero-trust access to servers, Kubernetes clusters, databases, and web apps, replacing VPNs and static credentials with short-lived, certificate-based access. A free open-source Community Edition and paid Enterprise/cloud plans are available.

Open sourceSelf-hostedAPIopen source