Apps similar to IBM DOORS Next include ClearWork. It's paid, but Reqflow and Doorstop are free. Other options are ReqView, Traceable Requirement Management, Innoslate and Valispace. You can choose from more than 10 Version Control Systems like IBM DOORS Next for Windows, Linux, the web, self-hosting and Mac.
Cradle by 3SL is a requirements management and software / systems engineering tool for agile and phase-based projects including MBSE, agile development, document & project management. Cradle supports small or large teams, either co-located or distributed.
United Kingdom
Turn your Github repo into a beautiful API documentation website in minutes. Keep your docs in sync with code changes automatically.
Self-hosted ALM for safety-critical engineering, connecting requirements, tasks, risks, tests, code links, baselines, and evidence. It generates controlled SRS and test-plan documents, records verification results and coverage, and supports standards-aware review with optional local AI subject to human approval.
Finland
EU
Nodlume is a system design tool for React based applications. Design the frontend — structure, navigation, wireframes — alongside the backend, data model, roles and permissions, and more.
United States
