Powerful collaborative visual workspace with robust AI brainstorming and diagramming tools, but broader feature set.
Powerful collaborative visual workspace with robust AI brainstorming and diagramming tools, but broader feature set.
Cradle records 16,993 monthly visits with -22.3% month-over-month growth and Contact for Pricing pricing. Napkin AI records 1,029,978 monthly visits with -17.5% growth and Freemium pricing.

Engineer better proteins, faster, with AI
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | cradle.bio | napkin.ai |
| Pricing Model | Contact for Pricing | Freemium |
| Monthly Visits | 16.99K (16,993) | 1.03M (1,029,978) |
| MoM Traffic Delta | -4.88K (-22.3%) | -218.06K (-17.5%) |
| Primary Market & Share | 🇳🇱 Netherlands (47.6%) | 🇮🇳 India (9.1%) |
| Direct Visits / mo | 6.21K | 443.98K |
| User Rating | 4.5 | 4.7 |
| Supported Platforms | Website | Website |

Engineer better proteins, faster, with AI
Start from a target or your own sequence and have Cradle design an optimized plate of candidates informed by your data and domain knowledge.
Improve efficacy, developability, and manufacturability in parallel rather than one property at a time, compressing time to a target profile.
Every round incorporates results from the previous one, so experimental data compounds across campaigns and prior failed programs stay useful.
Everything in the web application is exposed through the API, so computational teams can script campaigns and wire Cradle into existing pipelines.

Turn plain text into diagrams, infographics, and presentation-ready visuals.
Paste or import your text and Napkin generates infographics, diagrams, flowcharts, mind maps, and data charts that fit your content.
Napkin Slides collaborates with you to turn ideas into complete, ready-to-present decks rather than static images.
Adjust colors, fonts, layouts, and icons, reshape individual elements, and match your brand — nothing is locked after generation.
Export visuals as PPT, PNG, PDF, or SVG and drop them into PowerPoint, Google Slides, Keynote, Notion, or any tool you already use.
Powerful collaborative visual workspace with robust AI brainstorming and diagramming tools, but broader feature set.
Powerful collaborative visual workspace with robust AI brainstorming and diagramming tools, but broader feature set.

Generates beautifully styled presentations and documents from text prompts, though less focused on inline diagramming.
Generates beautifully styled presentations and documents from text prompts, though less focused on inline diagramming.
Free / Open-sourceGuideline-directed medical answers with citations, built for clinicians
Free / Open-sourceGuideline-directed medical answers with citations, built for clinicians

Turn text and data into polished infographics, reports and videos with AI
Turn text and data into polished infographics, reports and videos with AI
Collaborative whiteboard featuring built-in AI tools for flowcharts, mind maps, and diagrams.
Collaborative whiteboard featuring built-in AI tools for flowcharts, mind maps, and diagrams.

Free / Open-sourceAI-powered UI design and prototyping for product teams
Free / Open-sourceAI-powered UI design and prototyping for product teams

Specialized in AI diagramming, mind maps, and flowcharts, but lacks Napkin's seamless inline text integration.
Specialized in AI diagramming, mind maps, and flowcharts, but lacks Napkin's seamless inline text integration.
Transforms natural language into structured mind maps and visual flowcharts on an infinite canvas.
Transforms natural language into structured mind maps and visual flowcharts on an infinite canvas.

SpecialistTurn any idea into an interactive visual story with AI agents
SpecialistTurn any idea into an interactive visual story with AI agents
Measure, predict and prevent heart disease with data
Measure, predict and prevent heart disease with data

Free / Open-sourcePhysics-driven AI that automates PCB placement and routing
Free / Open-sourcePhysics-driven AI that automates PCB placement and routing

SpecialistExcellent for generating precise diagrams and flowcharts from text syntax, but requires familiarity with code.
SpecialistExcellent for generating precise diagrams and flowcharts from text syntax, but requires familiarity with code.