Industry standard collaborative whiteboarding with massive template libraries, but less streamlined for rapid AI diagram generation.

Whimsical records 966,895 monthly visits with -18.7% month-over-month growth and Freemium pricing. Zeli records 56,147 monthly visits with -46.8% growth and Free pricing.

Hacker News and AI paper summaries in seven languages
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | whimsical.com | zeli.app |
| Pricing Model | Freemium | Free |
| Monthly Visits | 966.9K (966,895) | 56.15K (56,147) |
| MoM Traffic Delta |
| -222.85K (-18.7%) |
| -49.3K (-46.8%) |
| Primary Market & Share | 🇮🇳 India (19%) | 🇨🇳 China (65.1%) |
|---|
| Direct Visits / mo | 602.36K | 39.95K |
|---|
| User Rating | 4.7 | 4.3 |
|---|
| Supported Platforms | Website | Website |
|---|

The collaborative whiteboard built for product builders
AI Flowcharts, AI Mind Maps and AI Wireframes convert a short text prompt into structured, fully editable diagrams, branched mind maps, or web and mobile wireflows — no manual drawing required.
Boards host diagrams, flowcharts, mind maps, wireframes, embedded media and documents side by side, so a whole product narrative lives in a single shareable file.
Multiple teammates edit the same board simultaneously with live cursors, thread comments attached to specific objects, and mention-based notifications.
Drag-and-drop UI components let teams sketch screens, link them into clickable flows and iterate on product ideas before engineering commits to a build.

Hacker News and AI paper summaries in seven languages
Each story carries a short summary generated from the linked article plus a standout key quote, so you can judge relevance before clicking through.
The whole feed — titles, summaries and top comment highlights — is available in English, Chinese, Japanese, Korean, German, Spanish and Russian.
Every day gets a permanent page containing every story that hit the front page, retrievable long after the feed has moved on.
Daily AI papers are surfaced with translated titles and AI summaries, making Zeli a research reader as well as a news reader.
Industry standard collaborative whiteboarding with massive template libraries, but less streamlined for rapid AI diagram generation.


A proactive AI reading lens for papers, videos, and web pages
#2Free / Open-sourceCombines mind mapping and project workflows with AI agents, but less focused on pure visual diagramming and wireframes.
Robust collaborative whiteboard with strong AI diagramming tools, but less polished UI wireframing capabilities than Whimsical.
Free AI Summarizer for text, articles, URLs and images

Dedicated diagramming platform with strong AI chart generation, but less focus on freeform collaborative brainstorming whiteboards.
SpecialistInstantly turns natural language prompts into mind maps and flowcharts, but offers less freeform canvas drawing flexibility.
Combines whiteboarding and documentation with AI generation, but lacks Whimsical's specialized wireframe shape library.
Exceptional UI wireframing and prototyping tools, but less versatile for general mind mapping and freeform brainstorming.
AI-powered platform to read, write, and stay current with research

Turn any long article or webpage into a clean, clickable summary in one click

SpecialistTransforms documents into strategic diagrams using AI, but less refined for everyday collaborative visual brainstorming.
Industry standard collaborative whiteboarding with massive template libraries, but less streamlined for rapid AI diagram generation.
A proactive AI reading lens for papers, videos, and web pages
Robust collaborative whiteboard with strong AI diagramming tools, but less polished UI wireframing capabilities than Whimsical.
Free AI Summarizer for text, articles, URLs and images
Dedicated diagramming platform with strong AI chart generation, but less focus on freeform collaborative brainstorming whiteboards.
SpecialistInstantly turns natural language prompts into mind maps and flowcharts, but offers less freeform canvas drawing flexibility.
Combines whiteboarding and documentation with AI generation, but lacks Whimsical's specialized wireframe shape library.
Exceptional UI wireframing and prototyping tools, but less versatile for general mind mapping and freeform brainstorming.
Turn any long article or webpage into a clean, clickable summary in one click
SpecialistTransforms documents into strategic diagrams using AI, but less refined for everyday collaborative visual brainstorming.