Mermaid Viewer vs Whiteboard by Athena AI vs ERBuilder vs Flowova AI

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

Your tool
Mermaid Viewer
vs
Competitor 1
WBWhiteboard by Athena AI
Competitor 2
ERBuilder
Competitor 3
Flowova AI
Compare
4 tools · best value per row highlighted
Your tool 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 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 Flowova AI
flowova.ai
Flowchart creation typically demands either design skills or hours wrestling with diagramming software
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Traffic estimated monthly website traffic
Monthly visits
143.2Kvisits/mo
1.1Kvisits/mo
5.4Kvisits/mo
900visits/mo
MoM change
▼ 10.9%
▲ 1,238.1%
▼ 6.3%
—
6-month growth
-9.3%
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-22.4%
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Global rank web
#317,277
#12,935,820
#3,419,998
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Avg. last 3 months
163.4K
402
5.9K
300
Bounce rate lower is better
45%
38%
39%
12%
Pages / visit
1.8
1.1
1.9
12.8
Visit duration
19s
—
15s
8m 56s
Traffic sources
● Direct 81% · ● Referral 19%
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Mermaid ViewerWhiteboard by Athena AIERBuilderFlowova AI
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 · 1.1KERBuilder · 10.9KERBuilder · 12.8KERBuilder · 16KERBuilder · 7KERBuilder · 8.8KERBuilder · 8.8KERBuilder · 6.4KERBuilder · 5.8KERBuilder · 5.4KFlowova AI · 900101001K10K100K1MMermaid 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 · 1.1KERBuilder · 10.9KERBuilder · 12.8KERBuilder · 16KERBuilder · 7KERBuilder · 8.8KERBuilder · 8.8KERBuilder · 6.4KERBuilder · 5.8KERBuilder · 5.4KFlowova AI · 900Nov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Freemium
Freemium
Free Trial
Freemium
Starting price
$69.99per month · free tier available
$5.99per month · free tier available
$139per month
$5per month · free tier available
Free tier
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Free trial
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API access
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Plans
Free FreeStarter $69.99/yrPro $119.99/yr
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Professional (Subscription) $139/yrEnterprise (Subscription) $399/yrProfessional (Lifetime) $279Enterprise (Lifetime) $799
Free FreePro $5/mo
Capabilities input → output
Input
CodeText
Text
Text
CodeDocumentsImagesTextWeb pages
Output
CodeImages
Images
Data
CodeImages
Skill level
Intermediate
Beginner-friendly
Intermediate
Beginner-friendly
Categories
Productivity & OfficeAI Diagram Generator
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
6
9
5
4
Diagrams
Diagram assistance
Flowcharts
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Code diagramming
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Data modeling
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Database design
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Mermaid images
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Mind maps
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Process maps
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Wireframes
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Collaborative design
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Google meet assistance
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Prototyping
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Schema generation
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UML diagrams
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UX design
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
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Saves
0
0
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0
Reviews
0
0
0
0
Prompts
0
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.