Mermaid Viewer vs Whiteboard by Athena AI vs DG Diagram-Generator vs ERBuilder
Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.
Your tool
Mermaid Viewer
vs Mermaid Viewer
Competitor 1
WBWhiteboard by Athena AI
Competitor 2
DG Diagram-Generator
DG Diagram-Generator
Competitor 3
ERBuilder
ERBuilderCompare
4 tools · best value per row highlighted
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
Competitor
DG Diagram-Generator
DG Diagram-Generator
diagram-generator.com
Transforming text descriptions into professional diagrams usually requires either specialized software skills or settling for basic auto-generated output
Competitor
ERBuilder
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.
Traffic estimated monthly website traffic
Monthly visits
143.2Kvisits/mo
1.1Kvisits/mo
10.8Kvisits/mo
5.4Kvisits/mo
MoM change
▼ 10.9%
▲ 1,238.1%
▼ 45.5%
▼ 6.3%
6-month growth
-9.3%
—
-30.7%
-22.4%
Global rank web
#317,277
#12,935,820
#2,199,388
#3,419,998
Avg. last 3 months
163.4K
402
15.9K
5.9K
Bounce rate lower is better
45%
38%
39%
39%
Pages / visit
1.8
1.1
1.6
1.9
Visit duration
19s
—
15s
15s
Traffic sources
● Direct 81% · ● Referral 19%
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—
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Mermaid ViewerWhiteboard by Athena AIDG Diagram-GeneratorERBuilder
Pricing
Model
Freemium
Freemium
Freemium
Free Trial
Starting price
$69.99per month · free tier available
$5.99per month · free tier available
$9per month · free tier available
$139per month
Free tier
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Free trial
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–
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API access
–
–
–
–
Plans
Free FreeStarter $69.99/yrPro $119.99/yr
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Developer FreeStarter $9/moProfessional $35/mo
Professional (Subscription) $139/yrEnterprise (Subscription) $399/yrProfessional (Lifetime) $279Enterprise (Lifetime) $799
Capabilities input → output
Input
CodeText
Text
Text
Text
Output
CodeImages
Images
CodeImages
Data
Skill level
Intermediate
Beginner-friendly
Beginner-friendly
Intermediate
Categories
Tasks what each tool can do · 1 shared · core partial
Tasks covered
6
9
6
5
Diagrams
Diagram assistance
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Flowcharts
–
Mind maps
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Mermaid images
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UML diagrams
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–
Code diagramming
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–
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Data modeling
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–
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Database design
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–
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Infographics
–
–
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Wireframes
–
–
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Collaborative design
–
–
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Google meet assistance
–
–
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Prototyping
–
–
–
Schema generation
–
–
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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
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
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.