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.
Dropbox Sign (HelloSign) records 4,339,818 monthly visits with -2.2% month-over-month growth and Free Trial, Paid, Contact for Pricing pricing. Napkin AI records 1,029,978 monthly visits with -17.5% growth and Freemium pricing.

Turn plain text into diagrams, infographics, and presentation-ready visuals.
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | hellosign.com | napkin.ai |
| Pricing Model | Free Trial, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 4.34M (4,339,818) | 1.03M (1,029,978) |
| MoM Traffic Delta | -98.94K (-2.2%) | -218.06K (-17.5%) |
| Primary Market & Share | 🇺🇸 United States (68.9%) | 🇮🇳 India (9.1%) |
| Direct Visits / mo | 3.04M | 443.98K |
| User Rating | 4.3 | 4.7 |
| Supported Platforms | Website | Website |

Electronic signatures and agreement workflows built into Dropbox
Recipients can review and sign agreements securely without creating an account, which removes friction from external signing.
Prepare NDAs, offer letters and contracts once, then reuse them for future requests to save time on recurring paperwork.
Embed secure, branded eSignature flows directly into your website, app or customer experience with a dedicated API.
Completed agreements are saved automatically to your preferred storage account so nothing gets lost in inboxes.

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.
SpecialistFocuses on AI-generated forms and data collection with built-in signatures, trading dedicated CLM features for form flexibility.

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.

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.
SpecialistDelivers enterprise-grade contract analytics and search, trading lightweight signature embedding for deep legal intelligence.
SpecialistDelivers enterprise-grade contract analytics and search, trading lightweight signature embedding for deep legal intelligence.

SpecialistTurn any idea into an interactive visual story with AI agents
SpecialistTurn any idea into an interactive visual story with AI agents

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.

SpecialistContract Intelligence platform for the enterprise

SpecialistSpecializes in interactive sales proposals with e-signatures, replacing basic contract signing with client-facing proposal builders.
SpecialistSpecializes in interactive sales proposals with e-signatures, replacing basic contract signing with client-facing proposal builders.