JSPM

JSPM is ranked #6 of 17 in javascript package managers on The Geeks Club. It runs on API, Browser extension, Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

JSPM plans and pricing

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JSPM (open-source project) Free Open-source import-map package management tools; jspm.io CDN services are described as free and donation-supported jspm.org · 2 Oct 2026

Compared on javascript package managers

Workspace support: Yes
Lockfile support: Yes
Peer dependency handling: Yes
Package publishing: Yes
Offline package cache: Yes
Global installation: Yes

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JSPM

Purpose: JSPM is an open source project for dependency management via browser import maps.
CLI: The JSPM CLI is the main command-line import map package management tool.
CDN: The jspm.io CDN loads optimized dependencies directly from npm without a separate build step.
Browser workflow: JSPM supports native ES modules, import maps, TypeScript type stripping and standards-based browser workflows.
Development server: jspm serve provides auto-installation, hot reloading and TypeScript type stripping.
Production builds: jspm build uses RollupJS to create optimized bundles from package entry points and dependencies.
Security: JSPM can add Subresource Integrity hashes for all modules in an application's static and dynamic module graph.
Providers: JSPM supports jspm.io, nodemodules, esm.sh, unpkg, skypack and jsdelivr providers by default, with custom providers configurable.
Integrations: Official integrations include an online generator, a VSCode web extension, a Vite plugin, an experimental Node.js loader, Import Map Rails and Symfony AssetMapper.
CDN availability: The jspm.io CDN page reports redundant storage and caching layers with 99.99% historical uptime.
CDN optimization: jspm.io performs RollupJS code-splitting optimization and serves source maps.
Compatibility: Import maps are supported in the latest versions of Firefox, Safari and Chrome, and in Deno.
Publishing limitation: The jspm publish command is experimental and has no reliability guarantees for publishing on jspm.io.
Funding: jspm.io is funded through the JSPM Foundation, a member-run Canadian not-for-profit corporation, with donations and sponsorships funding server costs.
Price from: Free

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Where it ranks on The Geeks Club

Best JavaScript Package Managers in 2026#6 of 17

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Sources

jspm.org/faq· checked 1 Oct 2026
jspm.org/docs/cli/· checked 1 Oct 2026
jspm.org/jspm-4.0-release· checked 1 Oct 2026
jspm.org/getting-started· checked 1 Oct 2026
jspm.org/docs/integrations· checked 1 Oct 2026
jspm.org/cdn/jspm-io· checked 1 Oct 2026
jspm.org/cdn/api· checked 2 Oct 2026