Whiteboard by Athena AI vs ERBuilder vs Mermaid Viewer

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

Your tool
WBWhiteboard by Athena AI
vs
Competitor 1
ERBuilder
Competitor 2
Mermaid Viewer
Competitor 3
Suggested competitors for Whiteboard by Athena AI: Whimsical94% Lucidchart AI81% Napkin80% DG Diagram-Generator79% AI Diagram Maker77% Visily77% Chartai77% Eraser77%
Compare
3 tools · best value per row highlighted
Your tool 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 ERBuilder
soft-builder.com
ERBuilder is a data modeling application from Softbuilder, and its generative AI feature turns plain-language descriptions into entity-relationship diagrams.
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Competitor Mermaid Viewer
mermaidviewer.com
Mermaid Viewer runs entirely in your browser
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
1.1Kvisits/mo
5.4Kvisits/mo
143.2Kvisits/mo
MoM change
▲ 1,238.1%
▼ 6.3%
▼ 10.9%
6-month growth
—
-22.4%
-9.3%
Global rank web
#12,935,820
#3,419,998
#317,277
Avg. last 3 months
402
5.9K
163.4K
Bounce rate lower is better
38%
39%
45%
Pages / visit
1.1
1.9
1.8
Visit duration
—
15s
19s
Traffic sources
—
—
● Direct 81% · ● Referral 19%
Whiteboard by Athena AIERBuilderMermaid Viewer
046.6K93.1K139.7K186.3KWhiteboard by Athena AI · 98Whiteboard by Athena AI · 174Whiteboard by Athena AI · 78Whiteboard by Athena AI · 84Whiteboard by Athena AI · 1.1KERBuilder · 10.9KERBuilder · 12.8KERBuilder · 16KERBuilder · 7KERBuilder · 8.8KERBuilder · 8.8KERBuilder · 6.4KERBuilder · 5.8KERBuilder · 5.4KMermaid Viewer · 158.9KMermaid Viewer · 157.9KMermaid Viewer · 184.8KMermaid Viewer · 170.5KMermaid Viewer · 186.3KMermaid Viewer · 160.7KMermaid Viewer · 143.2K101001K10K100K1MWhiteboard by Athena AI · 98Whiteboard by Athena AI · 174Whiteboard by Athena AI · 78Whiteboard by Athena AI · 84Whiteboard by Athena AI · 1.1KERBuilder · 10.9KERBuilder · 12.8KERBuilder · 16KERBuilder · 7KERBuilder · 8.8KERBuilder · 8.8KERBuilder · 6.4KERBuilder · 5.8KERBuilder · 5.4KMermaid Viewer · 158.9KMermaid Viewer · 157.9KMermaid Viewer · 184.8KMermaid Viewer · 170.5KMermaid Viewer · 186.3KMermaid Viewer · 160.7KMermaid Viewer · 143.2KNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Freemium
Free Trial
Freemium
Starting price
$5.99per month · free tier available
$139per month
$69.99per month · free tier available
Free tier
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Free trial
–
–
API access
–
–
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Plans
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Professional (Subscription) $139/yrEnterprise (Subscription) $399/yrProfessional (Lifetime) $279Enterprise (Lifetime) $799
Free FreeStarter $69.99/yrPro $119.99/yr
Capabilities input → output
Input
Text
Text
CodeText
Output
Images
Data
CodeImages
Skill level
Beginner-friendly
Intermediate
Intermediate
Categories
Design & CreativeProductivity & OfficeAI Diagram GeneratorAI Mind Mapping+1 more
Productivity & OfficeAI Diagram Generator
Productivity & OfficeAI Diagram Generator
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
9
5
6
Diagrams
Diagram assistance
Flowcharts
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Code diagramming
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–
Data modeling
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–
Database design
–
–
Mermaid images
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Mind maps
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Wireframes
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–
Collaborative design
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Google meet assistance
–
–
Prototyping
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–
Schema generation
–
–
UML diagrams
–
–
UX design
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
Saves
0
0
0
Reviews
0
0
0
Prompts
0
0
0
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.