ToolVitals
Active OSI-approved OSS Frameworks Web Frameworks

Javalin

Lightweight Java and Kotlin web framework for building HTTP APIs and web apps.

Website GitHub X Discord
Data confidence96/100
Source coverage94/100
Publish confidence95/100
Pricing checkedNo current pricing evidence
Score Breakdown

Public signal read

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How to read this

These bars are a reader-facing view of the ToolVitals evidence model. They summarize maintenance, shipping, confidence, and decay signals. Hosted pricing evidence is shown separately.

Activity
Recent commits, releases, changelog, package, and product-motion signals.
Reliability
Maintenance posture from recency, release evidence, availability, and repo signals.
Adoption
Public footprint from GitHub stars, forks, and watchers when available.
Sustainability
Longer-term posture combining health, activity, adoption, confidence, and decay risk.
ToolVitals80/100Health81/100Shipping65/100Zombie Risk0/100
Overall Score 80 Active
Activity 65
Reliability 81
Adoption 79
Sustainability 81

Score History

Scores collected daily. More data points appear as the tracker runs.

About this tool

What ToolVitals knows about Javalin

Lightweight Java and Kotlin web framework for building HTTP APIs and web apps.

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

Maintenance and shipping signals are strong.

Library Framework Web Frameworks OSI-approved OSS Scored Intelligence
Repository

GitHub Activity

KT
javalin/javalin
Stars 8,280
Forks 642
Watchers 8,280
Open Issues 19
Primary Language
Kotlin
Last Commit
4 days ago
Releases 90d
4
Default Branch
master
License
Apache-2.0
Repository Status
Active repository
Evidence

Signal Quality

Data Confidence 96/100 Strong
Source Coverage 94/100 Strong
Publish Confidence 95/100 Strong

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
Apache-2.0
Pricing Scope
No hosted pricing tracked

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

Sources

Tracked Sources

Website https://javalin.io GitHub javalin/javalin X https://x.com/javalin_io Discord https://discord.gg/sgak4e5NKv
Profile

Classification

Category
Frameworks
Use Case
Web Frameworks
Openness
OSI-approved OSS
License
Apache-2.0
Pricing Scope
No hosted pricing tracked
Tool Mode
Library Framework
Score Model
Open Source Maintenance
Score Visibility
Scored Intelligence
Status
Active
Hosted Pricing

Pricing Evidence

Scope
No hosted pricing tracked
Free Tier
Not detected
Currency
USD
Tracked Plans
0
Maintainers

README Badge

Show this ToolVitals status in project docs.

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Latest

Recent Updates

Release Notes

May 14, 2026 7.2.2 May 14, 2026 7.2.1 Apr 19, 2026 7.2.0 Mar 15, 2026 7.1.0 Feb 28, 2026 7.0.1

Next decisions

Useful paths from this profile

Javalin
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LeaderboardWeb Frameworks rankings

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Tags
javakotlinweb-frameworkapiopen-sourceapi-firsthacktoberfestjavalinjettymicroservicerest-apiservlethttp-apimicroservices

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