UX tools that are actually free.

01Accessibility & writing

• Colour Contrast CheckerCheck any colour pair against WCAG.
• Accessibility CheckerScan any URL for HTML accessibility problems.
• Readability CheckerSee if your interface copy is easy to read.

02Research

• User PersonaBuild a persona you can export.
• Journey MapMap the stages and find the low point.
• Empathy MapSays, thinks, does, feels, as sticky notes.
• Stakeholder MapPower/interest grid with an engagement plan.

03Product & analytics

• User StoriesStories with acceptance criteria, checked on INVEST.
• Tracking PlanAn event list built from your goals.
• A/B Test CalculatorIs your result real, or noise?
• SUS CalculatorScore the System Usability Scale, one person or many.
• NPS CalculatorTurn survey scores into a Net Promoter Score.

04Structure & review

• Tree TestCan people find things in your navigation?
• Card SortLearn how users group your content.
• RICE & ICE CalculatorScore ideas and rank your backlog.
• Heuristic EvaluationCheck a product against Nielsen's 10 heuristics.

• Tree Test. Compare: Free Treejack alternative
• Card Sort. Compare: Free OptimalSort alternative
• RICE & ICE Calculator. Also: MoSCoW, Kano

05Usability testing

• First-Click TestSee where people click first.
• Preference TestWhich design do people pick, and why?
• Five-Second TestWhat do people remember after a glance?
• Usability Test ScriptA ready-to-run script or interview guide.