| What it does | Free tree testing tool for testing information architecture
| Free online tools for flowcharts, charts, diagrams and timelines with no sign-up
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| Stage | Established
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| Founded | 2021
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| Based in | Not given
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| Pricing model | Free
| Freemium
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| Pricing | Free for unlimited tree testing and card sorting studies, unlimited participants and responses, and full analysis. Participant recruitment through UXbeam's panel starts at $1 per participant-minute.
| Free: no account required, all diagram and chart makers, PNG/SVG/PDF export, no watermark. Pro: Monthly $9.99 a month, Yearly $99.99 a year with 7-day free trial, Lifetime $239.99 once. Euro area: €10.99 a month, €109.99 a year, €259.99 once (VAT included).
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| Key features | - Unlimited tree-testing studies and participants
- Leading-task detection to catch biased wording
- Path replay visualization of participant navigation
- Task outcome breakdown into direct, indirect, and elsewhere
- Full-scenario completion tracking across multiple tasks
- Mobile-compatible participant experience
- Integrated card sorting with tree testing workflow
- Multiple valid destinations per task
- Iterative testing with versioned results
- Complete CSV export of participant-level results
| - Flowchart and process diagram maker with canvas and text-to-diagram modes
- Text-to-diagram tools for UML, ER and sequence diagrams
- Chart tools: pie chart, line graph, gauge and Sankey diagram
- Automatic diagram layout from typed text
- Export to PNG, SVG and PDF without watermark
- Share diagrams with share links
- Pro: editable .drawio export and vector PDF
- Pro: multi-page documents and layers
- Diagram checks for unlabelled branches and dead ends
- Works on phone and computer
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| What makes it different | - No credit card required and truly unlimited at no cost
- Built-in methodological safeguards prevent common research mistakes
- One-screen setup lets researchers create tests in minutes
- Mental Model Detection identifies competing ways different user groups organize content
- AI-assisted participant recruitment with audience targeting
| - Completely free with no account required and no watermark on exports
- Nothing uploaded: all work stays on your device in your browser
- Results computed by the same tested code, not manually typed
- Multiple export formats: PNG at 4 sizes, SVG and PDF
- Converts between formats: Mermaid to draw.io, SQL to ER, Visio to flowchart
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 35 ● no change since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 16 | 19 |
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| Referring domains (Majestic) | 2 | 4 |
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Diagram Smith