HDF SchemasHeimdall Data Format

A standardized JSON format for security assessment data across 30+ tools and platforms.

7 Document Types

Results, Baselines, Systems, Plans, Amendments, Evidence Packages, and Comparisons — covering the full assessment lifecycle.

Convert output from Nessus, Grype, OSCAL, XCCDF, SARIF, CycloneDX, and many more into a unified format.

TypeScript, Go, and Python type definitions generated from the schemas. Use HDF in any stack.

Each bundled schema embeds all referenced types. No external fetches needed for validation.