Tool

• ToolFreemiumDovetailby DovetailA research repository for analyzing, tagging, and sharing interviews and studies.
• ToolFreemiumFigmaby FigmaA collaborative design tool for interfaces, prototypes, and design systems – in the browser and as a desktop app.
• ToolFreemiumHotjarby ContentsquareHeatmaps, session recordings, and feedback widgets for websites.
• ToolFreemiumMazeby MazeUnmoderated usability tests, surveys, and prototype tests with automated analysis.
• ToolFreemiumMiroby MiroA digital whiteboard for workshops, journey maps, affinity mapping, and brainstorming.
• ToolPaidOptimal Workshopby Optimal WorkshopThe specialist for information architecture: card sorting, tree testing, and first-click tests.
• ToolFreemiumStarkby StarkAn accessibility plugin for Figma and the browser: check contrast, simulate color vision deficiencies, and plan focus order.
• ToolFreeWAVEby WebAIMA browser extension that flags barriers like missing alt text or contrast issues right on the page.
• ToolFreeWebAIM Contrast Checkerby WebAIMChecks whether two colors meet WCAG contrast requirements.
• ToolFreemiumaxe DevToolsby Deque SystemsAutomated accessibility testing in your browser’s developer tools – with clear explanations for every issue it finds.

Checklist

• ChecklistFree10 Usability Heuristicsby Nielsen Norman GroupJakob Nielsen’s ten classic principles – the foundation of every heuristic evaluation.
• ChecklistFreeLaws of UXby Jon YablonskiPsychological principles like Fitts’ Law, Hick’s Law, and Jakob’s Law – clearly explained.
• ChecklistFreeWCAG 2.2 Quick Referenceby W3CEvery WCAG success criterion, filterable by level, technique, and topic.

Book

• BookPaidDon’t Make Me Thinkby Steve KrugThe classic on web usability – short, funny, and still relevant today.
• BookPaidLean UXby Jeff Gothelf & Josh SeidenHow teams build better products with hypotheses, small experiments, and close collaboration.
• BookPaidLean UX für kleine Teamsby Dennis WagnerA German-language practical book: Two people. No budget. Still building the right thing – 23 methods along the Double Diamond, each with time required, a template, and a checklist.
• BookPaidThe Design of Everyday Thingsby Don NormanThe foundational book on affordances, mental models, and human error.