Free and open source tool that renders mind maps out of markdown.

Workflowy is a simple, focused bullet-list tool. As a Test Engineer, it's a flexible notebook for organizing work. It minimizes distraction, allowing quick structuring of test cases, plans, and exploratory notes.

TestMu AI (Formerly LambdaTest) is a fully autonomous agentic quality engineering platform that empowers teams to test intelligently, smarter, and ship faster.

Exploratory testing assistant for Chrome and Firefox. Adds common problematic values and edge cases to the context menu (right-click) for editable elements, so you can keep them handy and access them easily during exploratory testing sessions.

Generate diagrams that visualize concepts, brainstorms, and web pages in seconds.

Jupyter Notebook is an interactive, browser-based environment for running code alongside notes, results, and visualisations, making it useful for exploration, analysis, and sharing reproducible work.