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Probo is an open source compliance platform built for startups pursuing compliance certifications. It centralizes risk management, vendor assessments, policy authoring, evidence collection, and trust center publishing in a single self-hostable application.

Supported frameworks

Probo provides structured control sets and audit workflows for the following frameworks:
  • SOC 2 — Service Organization Control 2 (Trust Services Criteria)
  • ISO 27001 — Information security management systems
  • ISO 27701 — Privacy information management (extension to ISO 27001)
  • ISO 42001 — AI management systems
  • GDPR — General Data Protection Regulation
  • HIPAA — Health Insurance Portability and Accountability Act

Architecture

Probo is a single deployable binary (probod) that serves both the API and the embedded frontend assets.
LayerTechnology
BackendGo
FrontendReact + TypeScript (Relay, TailwindCSS)
DatabasePostgreSQL
File storageS3-compatible (SeaweedFS)
GraphQL APIConsole and connect APIs (gqlgen)
MCP APIModel Context Protocol for AI agent access
CLIprb — command-line interface for all platform operations
ObservabilityOpenTelemetry, Prometheus, Grafana, Loki, Tempo
The backend exposes three API surfaces: a GraphQL console API used by the web app, a connect API for external integrations, and an MCP API for AI assistant access. All three surfaces expose the same underlying operations.

Who Probo is for

Probo is designed for engineering and security teams at startups that need to achieve compliance certifications quickly. It gives you a transparent, community-driven alternative to expensive SaaS GRC tools, with the option to run entirely on your own infrastructure.

Get started

Quick start

Set up Probo locally or connect to the cloud-hosted version.

Compliance frameworks

Explore the control sets for SOC2, ISO27001, GDPR, HIPAA, and more.

Risk management

Track inherent and residual risk scores across your organization.

Trust center

Publish your security posture on a branded, public-facing trust page.

API reference

Automate compliance workflows via the GraphQL and MCP APIs.

CLI (prb)

Manage risks, controls, evidence, and more from the command line.

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