Architext turns your infrastructure into architecture docs. Paste docker-compose, Kubernetes, Terraform, CloudFormation, or a GitHub repo URL — it auto-detects the format and builds an editable diagram. From that one model it compiles context diagram, ADRs, NFRs, threat model, cost, and slide decks. An AI co-editor evolves it in plain English ("add a Redis cache between the API and the DB"). Free, no signup required.