ERBuilder vs Napkin vs CodeViz

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

Your tool
ERBuilder
vs
Competitor 1
Napkin
Competitor 2
CodeViz
Competitor 3
Suggested competitors for ERBuilder: Mermaid Viewer91% Eraser89% AI Diagram Maker88% WBWhiteboard by Athena AI88% Tenorshare AI Diagrimo88% Lucidchart AI88% Whimsical86% ConceptViz86%
Compare
3 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 Napkin
napkin.ai
Napkin works directly from your text: paste or import it, click generate, and it proposes visuals that match the ideas in the writing.
Make main Remove
Competitor CodeViz
codeviz.ai
The free tier caps you at five diagrams monthly and one repository
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
5.4Kvisits/mo
1.3Mvisits/mo
3.4Kvisits/mo
MoM change
▼ 6.3%
▼ 8.5%
▼ 44.8%
6-month growth
-22.4%
-46.4%
+35.5%
Global rank web
#3,419,998
#36,124
#4,939,424
Avg. last 3 months
5.9K
1.4M
4.1K
Bounce rate lower is better
39%
41%
35%
Pages / visit
1.9
3.9
1.8
Visit duration
15s
2m 36s
16s
Traffic sources
—
● Direct 86% · ● Referral 9%
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ERBuilderNapkinCodeViz
0831.2K1.7M2.5M3.3MERBuilder · 10.9KERBuilder · 12.8KERBuilder · 16KERBuilder · 7KERBuilder · 8.8KERBuilder · 8.8KERBuilder · 6.4KERBuilder · 5.8KERBuilder · 5.4KNapkin · 3.3MNapkin · 2.7MNapkin · 2.4MNapkin · 2.3MNapkin · 2.4MNapkin · 2.1MNapkin · 1.8MNapkin · 1.6MNapkin · 1.4MNapkin · 1.3MCodeViz · 4.2KCodeViz · 6.4KCodeViz · 2.7KCodeViz · 2.5KCodeViz · 6.3KCodeViz · 3.3KCodeViz · 2.5KCodeViz · 6.2KCodeViz · 3.4K1K10K100K1M10MERBuilder · 10.9KERBuilder · 12.8KERBuilder · 16KERBuilder · 7KERBuilder · 8.8KERBuilder · 8.8KERBuilder · 6.4KERBuilder · 5.8KERBuilder · 5.4KNapkin · 3.3MNapkin · 2.7MNapkin · 2.4MNapkin · 2.3MNapkin · 2.4MNapkin · 2.1MNapkin · 1.8MNapkin · 1.6MNapkin · 1.4MNapkin · 1.3MCodeViz · 4.2KCodeViz · 6.4KCodeViz · 2.7KCodeViz · 2.5KCodeViz · 6.3KCodeViz · 3.3KCodeViz · 2.5KCodeViz · 6.2KCodeViz · 3.4KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free Trial
Freemium
Freemium
Starting price
$139per month
$9per month · free tier available
$19per 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
Capabilities input → output
Input
Text
DataText
CodeText
Output
Data
DataImagesSlides
Images
Skill level
Intermediate
Beginner-friendly
Intermediate
Categories
Productivity & OfficeAI Diagram Generator
Design & CreativeProductivity & OfficeAI ChartingAI Diagram Generator+3 more
Development & CodeProductivity & OfficeAI Developer ToolsAI Diagram Generator
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
3
7
8
Diagrams
Diagram assistance
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Architectural diagramming
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Code diagramming
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Code visualization
–
–
Flowcharts
–
–
Infographics
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Mind maps
–
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Charts
–
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Code documentation
–
–
Data charts
–
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Code reviews
–
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Onboarding tutorials
–
–
Presentations
–
–
Schema generation
–
–
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.