npm Package Trends — Downloads, Deps & Vulnerabilities

What does npm Package Trends do?

npm package trends tracks download velocity, version history, and ecosystem health for any npm package — without an API key. Provide a list of package names and get back weekly downloads, monthly downloads, a download trend percentage comparing the past two weeks against the prior two weeks, bundle size via Bundlephobia, dependency counts, and 30-day daily download history. Use this npm weekly downloads tracker to compare multiple JavaScript library popularity metrics side-by-side in a single run.

All data is sourced from the official npm Registry, npm Downloads API, and Bundlephobia. No authentication, no rate-limit signup, no proxy cost.

Why use npm Package Trends?

• Library selection — before adopting a new dependency, compare npm package trends and growth momentum across candidate packages to pick the one with the strongest community traction.
• Ecosystem monitoring — schedule weekly runs to watch JavaScript library popularity for every package in your production stack; catch declining downloads before they signal an abandoned project.
• Bundle size optimization — surface the gzip size of every direct dependency via Bundlephobia and identify the heaviest contributors to your JavaScript bundle.
• Dependency supply chain auditing — get dependency and devDependency counts for each package to quantify your transitive exposure and flag over-engineered libraries.
• Open-source health dashboards — build automated engineering reports on npm weekly downloads tracker data for your team, investors, or open-source portfolio.

How to use npm Package Trends

1. Open the actor on Apify and click Try for free.
2. In the Input tab, add your package names to the packages array (e.g. ["react", "vue", "svelte"]).
3. Toggle optional enrichments: includeDownloadHistory, includeDependencies, and includeBundleSize.
4. Click Start and wait — typically 2–10 seconds per package.
5. Download results as JSON or CSV, or connect via the Apify API for automated CI/CD pipelines.

Input

Field	Type	Default	Required	Description
packages	string[]	—	Yes	npm package names to analyze (e.g. react, @types/node, lodash)
includeDownloadHistory	boolean	true	No	Include daily download counts for the last 30 days
includeDependencies	boolean	true	No	Include dependencies and devDependencies counts
includeBundleSize	boolean	false	No	Fetch gzip bundle size from Bundlephobia (adds latency)

Scoped packages such as @babel/core and @types/react are fully supported.

Output

One item per package is saved to the Apify dataset:

[
  {
    "name": "react",
    "version": "18.3.1",
    "description": "React is a JavaScript library for building user interfaces.",
    "license": "MIT",
    "homepage": "https://reactjs.org/",
    "repository_url": "https://github.com/facebook/react",
    "keywords": ["react"],
    "maintainers_count": 4,
    "weekly_downloads": 24000000,
    "monthly_downloads": 95000000,
    "downloads_trend": 3.5,
    "download_history": [
      { "date": "2026-08-01", "downloads": 3200000 },
      { "date": "2026-08-02", "downloads": 3150000 }
    ],
    "last_publish": "2024-04-26T15:00:00.000Z",
    "bundle_size_gzip": null,
    "dependencies_count": 3,
    "dev_dependencies_count": 0,
    "fetched_at": "2026-09-02T12:00:00.000Z"
  }
]

Data fields

Field	Type	Description
name	string	Package name on npm
version	string	Latest published version
description	string	Package description from the registry
license	string	SPDX license identifier
homepage	string	Project homepage URL
repository_url	string	Source repository URL
keywords	string[]	Registry keywords
maintainers_count	integer	Number of registered maintainers
weekly_downloads	integer	Downloads in the last 7 days
monthly_downloads	integer	Downloads in the last 30 days
downloads_trend	float	% change: last 2 weeks vs prior 2 weeks
download_history	object[]	Daily download counts for the last 30 days
last_publish	ISO8601	Date of the most recent version release
bundle_size_gzip	integer | null	Gzip bundle size in bytes (requires includeBundleSize)
dependencies_count	integer	Number of direct dependencies
dev_dependencies_count	integer	Number of devDependencies
fetched_at	ISO8601	Timestamp of data retrieval

downloads_trend is the percentage change in daily average downloads comparing the last 2 weeks against the prior 2 weeks. A value of 3.5 means +3.5% growth; -8.2 means the package is losing traction.

Cost estimation

Pricing is Pay-Per-Event (PPE) — you pay only for what you use.

Packages analyzed	Cost
1	$0.005
10	$0.05
100	$0.50
1,000	$5.00

Bundle size lookups via Bundlephobia add latency but no extra charge.

FAQ

Do I need an API key? No. All data sources — npm Registry, npm Downloads API, and Bundlephobia — are publicly accessible without authentication.

How current is the download data? npm's downloads API reflects data with approximately a 48-hour lag. Weekly and monthly figures match what you see on npmjs.com.

Can I track scoped packages like @babel/core? Yes. Scoped packages in @scope/name format are fully supported.

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Disclaimer: This actor fetches publicly available data from npm and Bundlephobia. Download counts and trend figures are for informational purposes only and should not be used as the sole basis for production dependency decisions. Data availability depends on upstream API uptime.

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Related actors

• GitHub Repo Stats — GitHub star growth and fork count to complement npm download trends for open source assessment
• PyPI Downloads Tracker — Python package download stats for cross-ecosystem library popularity comparison
• Product Hunt Launches Tracker — Developer tool launches that often precede npm download spikes

Feedback

If this actor helps your developer ecosystem research, a review helps others find it: Leave a review on Apify Store

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