CriticalOSI-approved OSSFrameworksRuntime LibrariesEvidence Watch

21st.dev

The NPM for Design Engineers

Data confidence93/100
Source coverage98/100
Publish confidence95/100
Evidence checkedJul 30, 2026

Evidence Watch

ToolVitals has useful public signals for 21st.dev, but not enough evidence to publish a strong verdict score yet.

GitHub source93/100 data confidence
About this tool

What ToolVitals knows about 21st.dev

The NPM for Design Engineers

This tool has an OSI-approved open-source license signal.

Multiple signals suggest declining health or reduced shipping momentum.

Source-visible projectRuntime LibrariesOSI-approved OSSEvidence Watch
Repository

GitHub Activity

TS
serafimcloud/21st
Stars5,365
Forks307
Watchers5,365
Open Issues128
Primary Language
TypeScript
Last Commit
428 days ago
Releases 90d
0
Default Branch
main
License
MIT
Repository Status
Active repository
Evidence

Signal Quality

Data Confidence93/100Strong
Source Coverage98/100Strong
Publish Confidence95/100Strong

ConfidenceHigh-confidence score from multiple public signals.

Zombie RiskNo meaningful zombie signal right now.

How ToolVitals scores work
Openness

License Evidence

Class
OSI-approved OSS
License
MIT

This tool has an OSI-approved open-source license signal.

Sources

Tracked Sources

Profile

Classification

Category
Frameworks
Use Case
Runtime Libraries
Openness
OSI-approved OSS
License
MIT
Tool Mode
Source-visible project
Score Model
Open Source Maintenance
Score Visibility
Evidence Watch
Status
Critical
Maintainers

README Badge

Show this ToolVitals status in project docs.

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Tags
designuiuxopen-sourcenextjsreactshadcnshadcn-uitailwindcssui-componentsui-libraryui-kitcomponent-registry

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