Compare npm package download trends over time with interactive charts and embeddable visualizations.
npmcharts.com is a web application that visualizes and compares npm package download statistics over time. It transforms raw npm download data into interactive charts that developers can use to analyze package popularity trends and make informed decisions about dependencies. The service also generates embeddable chart images for documentation, articles, and social media sharing.
JavaScript and Node.js developers evaluating npm packages for their projects, open-source maintainers tracking their package's adoption, and technical writers creating documentation with package comparison data.
Developers choose npmcharts.com because it provides free, visual access to npm download trends that are otherwise only available as raw numbers, with unique embeddable charts that work across platforms like Medium, Reddit, Twitter, and Slack without requiring API keys or authentication.
Compare npm package downloads over time
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Allows side-by-side visualization of multiple npm packages' download trends, helping developers compare popularity easily based on the key features.
Generates embed codes and images that work seamlessly on Medium, Reddit, Twitter, and Slack, as demonstrated in the README with gif examples.
Uses npm's public download data, so users can access charts without API keys or sign-ups, making it freely accessible as per the value proposition.
Provides clear setup instructions with `yarn` and `npm start` commands, including testing steps to verify functionality locally, as outlined in the README.
Requires installing `puppeteer` with a 150MB chromium download, making initial setup time-consuming and resource-heavy, as mentioned in the setup instructions.
Relies solely on npm's public download data, so it cannot visualize packages from other registries or private npm packages, limiting its scope.
The README does not mention options to customize chart aesthetics or data parameters, suggesting limited flexibility for advanced users.