styfle/packagephobia

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2307 stars · 59 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Package Phobia is a web application that reports the install size and publish size of npm packages before you install them, tracking size changes over time. It offers a web UI, README badges, and a JSON API for programmatic access.

Use cases

• check npm package install size before adding a dependency
• compare the size of two npm packages like express vs micro
• find javascript package bloat over time
• add a package size badge to my readme
• integrate package size lookup into a tool via json api
• avoid wasting disk space on heavy npm dependencies

When to choose

• you want to evaluate the disk and install cost of an npm dependency before installing it
• you need to compare candidate packages by size to pick the leanest option
• you want size badges or a JSON API for npm package sizes

When to avoid

• you need bundle-size analysis of your own application code rather than npm package install size
• you need security or license auditing of dependencies rather than size metrics
• you work outside the npm/JavaScript ecosystem

Facets

application · maturity active

analytics developer-tools http-server data-visualization developer-tools web-development performance npm-package-size dependency-analysis disk-space install-size package-comparison badges json-api npm nodejs web-server typescript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="styfle/packagephobia")