ERBuilder vs Chartai vs CodeViz vs Mermaid Viewer

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

Your tool
ERBuilder
vs
Competitor 1
Chartai
Competitor 2
CodeViz
Competitor 3
Mermaid Viewer
Compare
4 tools · best value per row highlighted
Your tool 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 Chartai
chartai.io
You land on Chartai and see a grid of quick start templates spanning eleven different visualization types
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Competitor CodeViz
codeviz.ai
The free tier caps you at five diagrams monthly and one repository
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Competitor Mermaid Viewer
mermaidviewer.com
Mermaid Viewer runs entirely in your browser
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Traffic estimated monthly website traffic
Monthly visits
5.4Kvisits/mo
31.5Kvisits/mo
3.4Kvisits/mo
143.2Kvisits/mo
MoM change
▼ 6.3%
▲ 14.1%
▼ 44.8%
▼ 10.9%
6-month growth
-22.4%
+11.0%
+35.5%
-9.3%
Global rank web
#3,419,998
#1,121,782
#4,939,424
#317,277
Avg. last 3 months
5.9K
31.2K
4.1K
163.4K
Bounce rate lower is better
39%
40%
35%
45%
Pages / visit
1.9
1.7
1.8
1.8
Visit duration
15s
22s
16s
19s
Traffic sources
—
● Direct 87% · ● Referral 13%
—
● Direct 81% · ● Referral 19%
ERBuilderChartaiCodeVizMermaid Viewer
046.6K93.1K139.7K186.3KERBuilder · 10.9KERBuilder · 12.8KERBuilder · 16KERBuilder · 7KERBuilder · 8.8KERBuilder · 8.8KERBuilder · 6.4KERBuilder · 5.8KERBuilder · 5.4KChartai · 25.4KChartai · 29.6KChartai · 26KChartai · 28.4KChartai · 27.5KChartai · 29.5KChartai · 34.5KChartai · 27.6KChartai · 31.5KCodeViz · 4.2KCodeViz · 6.4KCodeViz · 2.7KCodeViz · 2.5KCodeViz · 6.3KCodeViz · 3.3KCodeViz · 2.5KCodeViz · 6.2KCodeViz · 3.4KMermaid Viewer · 158.9KMermaid Viewer · 157.9KMermaid Viewer · 184.8KMermaid Viewer · 170.5KMermaid Viewer · 186.3KMermaid Viewer · 160.7KMermaid Viewer · 143.2K1K10K100K1MERBuilder · 10.9KERBuilder · 12.8KERBuilder · 16KERBuilder · 7KERBuilder · 8.8KERBuilder · 8.8KERBuilder · 6.4KERBuilder · 5.8KERBuilder · 5.4KChartai · 25.4KChartai · 29.6KChartai · 26KChartai · 28.4KChartai · 27.5KChartai · 29.5KChartai · 34.5KChartai · 27.6KChartai · 31.5KCodeViz · 4.2KCodeViz · 6.4KCodeViz · 2.7KCodeViz · 2.5KCodeViz · 6.3KCodeViz · 3.3KCodeViz · 2.5KCodeViz · 6.2KCodeViz · 3.4KMermaid Viewer · 158.9KMermaid Viewer · 157.9KMermaid Viewer · 184.8KMermaid Viewer · 170.5KMermaid Viewer · 186.3KMermaid Viewer · 160.7KMermaid Viewer · 143.2KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free Trial
Freemium
Freemium
Freemium
Starting price
$139per month
$5per month · free tier available
$19per month · free tier available
$69.99per month · free tier available
Free tier
–
Free trial
–
–
API access
–
–
–
Plans
Professional (Subscription) $139/yrEnterprise (Subscription) $399/yrProfessional (Lifetime) $279Enterprise (Lifetime) $799
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Free FreePro $19/moTeams $50/moCustom $0
Free FreeStarter $69.99/yrPro $119.99/yr
Capabilities input → output
Input
Text
CodeDataText
CodeText
CodeText
Output
Data
DataImages
Images
CodeImages
Skill level
Intermediate
Beginner-friendly
Intermediate
Intermediate
Categories
Productivity & OfficeAI Diagram Generator
Productivity & OfficeAI ChartingAI Diagram Generator
Development & CodeProductivity & OfficeAI Developer ToolsAI Diagram Generator
Productivity & OfficeAI Diagram Generator
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
5
8
8
6
Diagrams
Diagram assistance
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Code diagramming
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–
Flowcharts
–
–
UML diagrams
–
–
Architectural diagramming
–
–
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Charts
–
–
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Code visualization
–
–
–
Data charts
–
–
–
Data modeling
–
–
–
Gantt charts
–
–
–
Mind maps
–
–
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Code documentation
–
–
–
Database design
–
–
–
Infographics
–
–
–
Mermaid images
–
–
–
Code reviews
–
–
–
Onboarding tutorials
–
–
–
Schema generation
–
–
–
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.