CodeViz vs Napkin vs Mermaid Viewer

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

Your tool
CodeViz
vs
Competitor 1
Napkin
Competitor 2
Mermaid Viewer
Competitor 3
Suggested competitors for CodeViz: AI Diagram Maker85% GitDiagram85% Eraser84% WBWhiteboard by Athena AI77% ERBuilder76% Whimsical76% Miro76% DG Diagram-Generator75%
Compare
3 tools · best value per row highlighted
Your tool CodeViz
codeviz.ai
The free tier caps you at five diagrams monthly and one repository
Remove
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 Mermaid Viewer
mermaidviewer.com
Mermaid Viewer runs entirely in your browser
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
3.4Kvisits/mo
1.3Mvisits/mo
143.2Kvisits/mo
MoM change
▼ 44.8%
▼ 8.5%
▼ 10.9%
6-month growth
+35.5%
-46.4%
-9.3%
Global rank web
#4,939,424
#36,124
#317,277
Avg. last 3 months
4.1K
1.4M
163.4K
Bounce rate lower is better
35%
41%
45%
Pages / visit
1.8
3.9
1.8
Visit duration
16s
2m 36s
19s
Traffic sources
—
● Direct 86% · ● Referral 9%
● Direct 81% · ● Referral 19%
CodeVizNapkinMermaid Viewer
0831.2K1.7M2.5M3.3MCodeViz · 4.2KCodeViz · 6.4KCodeViz · 2.7KCodeViz · 2.5KCodeViz · 6.3KCodeViz · 3.3KCodeViz · 2.5KCodeViz · 6.2KCodeViz · 3.4KNapkin · 3.3MNapkin · 2.7MNapkin · 2.4MNapkin · 2.3MNapkin · 2.4MNapkin · 2.1MNapkin · 1.8MNapkin · 1.6MNapkin · 1.4MNapkin · 1.3MMermaid Viewer · 158.9KMermaid Viewer · 157.9KMermaid Viewer · 184.8KMermaid Viewer · 170.5KMermaid Viewer · 186.3KMermaid Viewer · 160.7KMermaid Viewer · 143.2K1K10K100K1M10MCodeViz · 4.2KCodeViz · 6.4KCodeViz · 2.7KCodeViz · 2.5KCodeViz · 6.3KCodeViz · 3.3KCodeViz · 2.5KCodeViz · 6.2KCodeViz · 3.4KNapkin · 3.3MNapkin · 2.7MNapkin · 2.4MNapkin · 2.3MNapkin · 2.4MNapkin · 2.1MNapkin · 1.8MNapkin · 1.6MNapkin · 1.4MNapkin · 1.3MMermaid 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
Freemium
Freemium
Freemium
Starting price
$19per month · free tier available
$9per month · free tier available
$69.99per month · free tier available
Free tier
Free trial
–
–
API access
–
–
Plans
Free FreePro $19/moTeams $50/moCustom $0
—
Free FreeStarter $69.99/yrPro $119.99/yr
Capabilities input → output
Input
CodeText
DataText
CodeText
Output
Images
DataImagesSlides
CodeImages
Skill level
Intermediate
Beginner-friendly
Intermediate
Categories
Development & CodeProductivity & OfficeAI Developer ToolsAI Diagram Generator
Design & CreativeProductivity & OfficeAI ChartingAI Diagram Generator+3 more
Productivity & OfficeAI Diagram Generator
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
8
7
6
Diagrams
Code diagramming
–
Flowcharts
–
Diagram assistance
–
Architectural diagramming
–
–
Code visualization
–
–
Infographics
–
–
Mind maps
–
–
Charts
–
–
Code documentation
–
–
Data charts
–
–
Mermaid images
–
–
Code reviews
–
–
Onboarding tutorials
–
–
Presentations
–
–
UML diagrams
–
–
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
–
–
–

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.