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Measured on six things

NpmStars unifies npm download data and GitHub star history for developers to track and compare open-source package popularity effortlessly.

Accessibility

Meets basic web standards with keyboard navigation and color contrast. Lacks screen reader optimization, ARIA labels for charts, and comprehensive language support.

Screenshots

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NpmStars

About this app

As a developer who's spent countless hours juggling between npmtrends and star-history to assess package adoption, I was thrilled to discover NpmStars. This tool elegantly merges npm download metrics with GitHub star trajectories in a single, intuitive interface, saving developers from the hassle of context-switching. It's designed for open-source developers, tech leads, and software architects who need to make informed decisions about dependencies by correlating real-world usage (downloads) with community engagement (stars). Standout features include synchronized comparison graphs, side-by-side analytics for multiple packages, and easy sharing via URLs or images. The dark-themed UI is easy on the eyes during long sessions, and performance is generally snappy, though it relies on external APIs. While it excels in core functionality, there's room for improvement in accessibility and advanced customization. For anyone tired of piecing together package insights from disparate tools, NpmStars is a game-changer that streamlines the evaluation process with SEO-friendly keywords like 'npm package analytics,' 'GitHub star tracker,' and 'open-source tool comparison.'

Key features

1Synchronized npm download and GitHub star history comparison graphs
2Side-by-side package analytics with forks, contributors, and download metrics
3Easy sharing via clean URLs and exportable chart images for collaboration

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Open-source developers and maintainers

Pain points

Switching between multiple tools like npmtrends and star-history, difficulty correlating download and star data, time-consuming manual comparisons

Primary needs

Unified package analytics, trend correlation, decision-making support for dependency choices

Demographic

Tech leads and engineering managers

Pain points

Assessing package longevity and community support, onboarding new team members with package insights, reporting on technology trends

Primary needs

Holistic package health assessment, shareable reports, historical trend analysis

Demographic

Software architects and researchers

Pain points

Evaluating ecosystem trends, comparing competing solutions, understanding adoption patterns over time

Primary needs

Comparative analytics, data visualization, exportable insights

Scout Review

Written by AI from measured evidence, scored out of 100.

NpmStars successfully bridges the gap between npm adoption metrics and GitHub community engagement in a way that feels obvious in hindsight. The synchronized comparison view alone justifies its existence, saving developers from the tedious context-switching between separate tools. It's particularly valuable for developers making long-term technology decisions, open-source maintainers tracking project growth, or teams needing to justify dependency choices with data-driven insights.

Measure by measure

Usability

Intuitive comparison workflow with synchronized scrolling graphs and straightforward navigation. Excellent sharing via URLs and images makes collaboration seamless.

Design

Clean dark-themed interface with synchronized graph visualization that reduces eye strain during extended sessions. Developer-focused layout with organized metrics panels.

Speed

Generally responsive with 2-3 second graph loads and smart caching for popular packages. Occasional delays when fetching extensive package history data.

Security

Standard HTTPS encryption for data transfer. Lightweight security model appropriate for read-only public data access without authentication requirements.

Accessibility

Meets basic web standards with keyboard navigation and color contrast. Lacks screen reader optimization, ARIA labels for charts, and comprehensive language support.

Growth

Strong potential addressing clear developer pain point. Positioned well for expansion into broader package ecosystem analytics and additional metrics.

Improvement areas

Advanced accessibility features including screen reader support
Custom graph controls and visualization customization options
Additional package metrics like vulnerability scores and bundle sizes

Design & Usability

NpmStars delivers a thoughtfully designed interface that prioritizes developer workflow efficiency. The dark theme isn't just for aesthetics - it genuinely reduces eye strain during those marathon package evaluation sessions. The synchronized graph visualization is the standout feature, allowing you to scroll through npm downloads and GitHub stars simultaneously, making correlation analysis intuitive rather than frustrating. The metrics panel presents key data points like forks, contributors, and download counts in a clean, organized layout that doesn't overwhelm users. Navigation feels natural with a prominent search bar and clear comparison controls. The share functionality is particularly well-executed, generating clean URLs and images that maintain visual integrity - perfect for documentation or team presentations.

Speed & Security

Performance-wise, NpmStars generally delivers responsive experiences with graphs loading within 2-3 seconds for most comparisons. The platform appears to implement smart caching for frequently accessed packages, which noticeably improves load times for popular libraries. However, I did encounter occasional delays when fetching data for packages with extensive historical data, reminding users that the tool relies on external APIs. Security follows a lightweight but appropriate model for its purpose - HTTPS encryption protects data in transit, and since the platform handles only public data without requiring user authentication, the security approach matches the risk profile. For a read-only analytics tool, this strikes a reasonable balance between protection and performance.

Accessibility & Growth

Accessibility represents the area with the most room for improvement. While the platform meets basic web standards with keyboard-navigable elements and reasonable color contrast, it lacks advanced features like screen reader optimization for graph data or comprehensive ARIA labels. The graphs, while visually appealing, present challenges for users with color vision deficiencies or those relying on assistive technologies. On the growth front, NpmStars is exceptionally well-positioned. It addresses a genuine, frequently experienced pain point in the developer community. The foundation is solid for expanding into broader package ecosystem analytics, adding metrics like vulnerability scores, bundle size comparisons, or dependency health assessments.

Conclusion

If you regularly evaluate packages for your projects or need to present technology decisions to your team, NpmStars deserves a permanent spot in your developer toolkit. The ability to share comparisons via simple URLs makes collaboration effortless. For anyone tired of juggling npmtrends and star-history in separate tabs, this unified approach to package analytics is a genuine workflow improvement that delivers on its core promise.

Suggestions for improvement

Implement advanced graph controls for custom date ranges and visualization customization
Add screen reader optimization and comprehensive ARIA labels for chart accessibility
Expand metrics to include issue counts, PR activity, and bundle size comparisons
Create mobile-optimized interface for on-the-go package research

How we score

Alternatives comparison

Named competitors, point by point. Nobody paid to appear here or to be left out.

	NpmStars	npmtrends.com	star-history.com	GitHub Compare
npm download data integration	Comprehensive npm download metrics with historical trends	Primary focus on npm download comparisons only	No npm download data integration	No synchronized npm download metrics
GitHub star history tracking	Integrated GitHub star trajectories with synchronized views	No GitHub star history integration	Specialized GitHub star trajectory focus	Repository comparisons without star history focus
Synchronized package comparison	Side-by-side synchronized graphs for multiple packages	Package comparisons but no synchronization with GitHub data	Star history comparisons without npm data correlation	Repository comparisons without cross-platform synchronization