Overview
RequiLink is a self-hosted requirements intelligence platform purpose-built for engineering teams developing safety-critical systems. It combines a powerful requirements management engine with AI assistance: quality checks, INCOSE conformance, semantic link suggestions, and requirement derivation, all running on your own infrastructure with no licence costs or per-seat fees.
Why It Matters
For decades, engineering teams in aerospace, automotive, medical devices, and rail have had limited options for requirements management: expensive commercial tools with complex deployment, rigid workflows, and bolt-on AI features that feel disconnected from the actual engineering process. RequiLink was built from the ground up with a different philosophy: self-hosted, AI-native, and with full ownership of your data from day one.
The core insight is that requirements management should not add friction to engineering. It should amplify the engineer's ability to write, trace, and verify requirements while producing audit-ready evidence as a natural byproduct of the workflow, not as a separate reporting step.
Key Features
- Requirement Authoring: Dense virtualised module table supporting 1000+ items with inline rich-text editing and colour-coded change bars for at-a-glance history.
- Traceability & Coverage: Four link types (satisfies, derives, verifies, refines) with automatic suspect-link detection when source requirements change.
- Baselines & Audit: Immutable snapshots with visual diff, full timestamped audit trail, and deterministic export for regulatory review.
- AI as Amplifier: Quality checks against INCOSE rules, semantic link proposals, requirement derivation from natural language, and inline ghost-text completion, and every AI output is a reviewable draft.
- Import & Migration: Import from ReqIF, Word (.docx), Excel (.xlsx), and CSV with column mapping and per-item diff preview before committing.
- Collaboration: Document locking, threaded comments with @-mentions, and per-document access controls (read / write / admin).
Technology Stack
- Frontend: Angular
- API: FastAPI (Python)
- Database: PostgreSQL 16
- AI: Configurable: OpenAI, Anthropic, or Ollama (on-prem)
- Deployment: Docker Compose, air-gap capable, no external connectivity required
Compliance Target
RequiLink is designed for teams working under DO-178C (aerospace), ISO 26262 (automotive), EN 50128 (rail), IEC 62304 (medical devices), and other safety-critical standards. The data model provides append-only audit logs, immutable baselines, approval chains, and deterministic export, the foundational requirements for any tool confidence level (TQL) assessment.
Deployment
RequiLink ships as a single Docker Compose file. Postgres, application server, and reverse proxy: three containers, one configuration file. Under 30 minutes from clone to first requirement entered. For air-gapped environments, the same stack runs entirely offline with a local LLM inference engine. No data ever leaves the customer's network.
Status
v1.0.0 released: v1.5.0 in progress. Self-hosted, no licence costs, no vendor lock-in. Open the live demo or contact us for deployment support.
Related: Read the blog article →