Whimsical vs Mermaid Viewer vs Whiteboard by Athena AI vs Eraser

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Whimsical
vs
Competitor 1
Mermaid Viewer
Competitor 2
WBWhiteboard by Athena AI
Competitor 3
Eraser
Compare
4 tools · best value per row highlighted
Your tool Whimsical
whimsical.com
Whimsical is a whiteboard for product builders that combines diagrams, flowcharts, mind maps, wireframes and documents on an infinite canvas.
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Competitor Mermaid Viewer
mermaidviewer.com
Mermaid Viewer runs entirely in your browser
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Competitor WBWhiteboard by Athena AI
athenaboard.ai
Instant Visual Creation Describe your concept, and watch as AI instantly generates flowcharts, wireframes, mind maps, or UI prototypes—ready in seconds. Perfect for entrepreneurs, digital teams, and
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Competitor Eraser
eraser.io
Eraser is an AI diagramming tool for technical and process teams that generates diagrams from text prompts, code, or uploaded files.
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Traffic estimated monthly website traffic
Monthly visits
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143.2Kvisits/mo
1.1Kvisits/mo
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MoM change
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▼ 10.9%
▲ 1,238.1%
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6-month growth
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-9.3%
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Global rank web
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#317,277
#12,935,820
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Avg. last 3 months
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163.4K
402
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Bounce rate lower is better
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45%
38%
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Pages / visit
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1.8
1.1
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Visit duration
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19s
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Traffic sources
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● Direct 81% · ● Referral 19%
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WhimsicalMermaid ViewerWhiteboard by Athena AIEraser
046.6K93.1K139.7K186.3KMermaid Viewer · 158.9KMermaid Viewer · 157.9KMermaid Viewer · 184.8KMermaid Viewer · 170.5KMermaid Viewer · 186.3KMermaid Viewer · 160.7KMermaid Viewer · 143.2KWhiteboard by Athena AI · 98Whiteboard by Athena AI · 174Whiteboard by Athena AI · 78Whiteboard by Athena AI · 84Whiteboard by Athena AI · 1.1K101001K10K100K1MMermaid Viewer · 158.9KMermaid Viewer · 157.9KMermaid Viewer · 184.8KMermaid Viewer · 170.5KMermaid Viewer · 186.3KMermaid Viewer · 160.7KMermaid Viewer · 143.2KWhiteboard by Athena AI · 98Whiteboard by Athena AI · 174Whiteboard by Athena AI · 78Whiteboard by Athena AI · 84Whiteboard by Athena AI · 1.1KNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$10per month · free tier available
$69.99per month · free tier available
$5.99per month · free tier available
$15per month · free tier available
Free tier
Free trial
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API access
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Plans
Free FreePro $10/moBusiness $20/mo
Free FreeStarter $69.99/yrPro $119.99/yr
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Free FreeStarter $15/moBusiness $45/moEnterprise Custom
Capabilities input → output
Input
ImagesText
CodeText
Text
CodeDocumentsImagesText
Output
Images
CodeImages
Images
Images
Skill level
Beginner-friendly
Intermediate
Beginner-friendly
Intermediate
Categories
Design & CreativeProductivity & OfficeAI Diagram GeneratorAI Mind Mapping+1 more
Productivity & OfficeAI Diagram Generator
Design & CreativeProductivity & OfficeAI Diagram GeneratorAI Mind Mapping+1 more
Productivity & OfficeAI Diagram Generator
Tasks what each tool can do · 3 shared · core   partial
Tasks covered
9
6
9
10
Diagrams
Diagram assistance
Flowcharts
Code diagramming
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Mind maps
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Wireframes
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Collaborative design
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UML diagrams
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UX design
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Architectural diagramming
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Mermaid images
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Team collaboration
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BPMN
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BPMN diagrams
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Brainstorming
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Cloud diagrams
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Google meet assistance
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Network diagrams
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Prototyping
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
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Saves
0
0
0
0
Reviews
0
0
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Prompts
0
0
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Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.