Mermaid Viewer vs FigureGPT vs Napkin vs CodeViz

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

Your tool
Mermaid Viewer
vs
Competitor 1
FFigureGPT
Competitor 2
Napkin
Competitor 3
CodeViz
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 FFigureGPT
figuregpt.ai
Generate Publication-Ready Figures from Research Papers
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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.
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Competitor CodeViz
codeviz.ai
The free tier caps you at five diagrams monthly and one repository
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Traffic estimated monthly website traffic
Monthly visits
143.2Kvisits/mo
—
1.3Mvisits/mo
3.4Kvisits/mo
MoM change
▼ 10.9%
—
▼ 8.5%
▼ 44.8%
6-month growth
-9.3%
—
-46.4%
+35.5%
Global rank web
#317,277
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#36,124
#4,939,424
Avg. last 3 months
163.4K
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1.4M
4.1K
Bounce rate lower is better
45%
0%
41%
35%
Pages / visit
1.8
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3.9
1.8
Visit duration
19s
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2m 36s
16s
Traffic sources
● Direct 81% · ● Referral 19%
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● Direct 86% · ● Referral 9%
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Mermaid ViewerFigureGPTNapkinCodeViz
0831.2K1.7M2.5M3.3MMermaid Viewer · 158.9KMermaid Viewer · 157.9KMermaid Viewer · 184.8KMermaid Viewer · 170.5KMermaid Viewer · 186.3KMermaid Viewer · 160.7KMermaid Viewer · 143.2KNapkin · 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 · 3.4K1K10K100K1M10MMermaid Viewer · 158.9KMermaid Viewer · 157.9KMermaid Viewer · 184.8KMermaid Viewer · 170.5KMermaid Viewer · 186.3KMermaid Viewer · 160.7KMermaid Viewer · 143.2KNapkin · 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
Freemium
Freemium
Freemium
Freemium
Starting price
$69.99per month · free tier available
$9.9per month · free tier available
$9per month · free tier available
$19per month · free tier available
Free tier
Free trial
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API access
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Plans
Free FreeStarter $69.99/yrPro $119.99/yr
Basic $9.90/moPro $19.90/moMax $49.90/mo
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Free FreePro $19/moTeams $50/moCustom $0
Capabilities input → output
Input
CodeText
ImagesText
DataText
CodeText
Output
CodeImages
Images
DataImagesSlides
Images
Skill level
Intermediate
Intermediate
Beginner-friendly
Intermediate
Categories
Productivity & OfficeAI Diagram Generator
Productivity & OfficeAI ChartingAI 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
6
7
7
8
Diagrams
Diagram assistance
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Code diagramming
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Charts
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Data charts
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Flowcharts
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Academic illustrations
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Architectural diagramming
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Code visualization
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Infographics
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Mind maps
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Scientific illustrations
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Code documentation
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Data visualization
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Mermaid images
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Code reviews
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Onboarding tutorials
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Presentations
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UML diagrams
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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
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Reviews
0
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Prompts
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.