Number 1:
Thesys
The open standard for Generative UI
- AI app builders
- United States
- DR 63 no change since last check
AI app builders
Free AI probability tree generator for scenarios and calculations
Ahrefs Domain Rating benchmarked 16 Oct 2026, rebuilt 13 Oct 2026.
| Metric | Value |
|---|---|
| Domain Rating | 5 no change since last check |
| Trust Flow | 17 no change since last check |
| Citation Flow | 20 no change since last check |
| Referring domains | 16 no change since last check |
| External backlinks | 41 no change since last check |
Ahrefs Domain Rating benchmarked 16 Oct 2026, rebuilt 13 Oct 2026. Main build topic: Computers/Programming/Internet (15). Majestic benchmarked 13 Oct 2026, rebuilt 13 Oct 2026. Link data built by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
| Domain age | 1 month |
|---|---|
| Registered | |
| Expires | |
| Registrar | NameCheap, Inc. |
| DNSSEC | Not signed |
An online tool that converts natural language descriptions of scenarios into calculated and validated probability tree diagrams, with AI refinement and export

ProbPath is an online probability tree diagram maker that generates, calculates, and validates probability trees from natural language descriptions. Users describe a scenario in their own words and receive a complete probability tree with all branch probabilities computed and validated within seconds.
The tool supports refinement through conversational chat or direct canvas editing. Users can follow up with natural language instructions or click nodes and branches to adjust labels and probabilities, with all downstream calculations updating instantly. It validates that sibling probabilities sum to exactly 1 and handles both independent and dependent events, including draws without replacement.
ProbPath exports probability trees as PNG, PDF, or SVG files suitable for homework, slides, and reports. The tool runs entirely in a browser with no installation required and understands natural language descriptions in multiple languages.
Pricing model: Freemium
Basic: $0 forever with 5 free AI credits, manual editing, up to 3 saved trees, and white-background PNG export. 500 Credits: $12.90 one-time, valid for 30 days, covers roughly 100-160 polished trees. 2,000 Credits: $26.90 one-time, valid for 30 days, covers roughly 400-650 polished trees.
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ProbPath has a free listing. The owner can unlock the full profile with a paid launch for $5:
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