No. 10 of 18 ·JavaScript Package Managers

Utoo

Web · Windows · Mac · Linux

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Freedom report

Two barsScore 5.6

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely4 of 6 device platforms
DocumentedPlans, terms and facts published

Utoo is ranked #10 of 18 in JavaScript package managers on Freedom251. It runs on Linux, macOS, Web, Windows.

Compared on JavaScript package managers

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

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The record

Product: Utoo describes itself as a unified web development toolchain with package management, bundling, and browser-native builds.
Package manager: The Rust-based utoo package manager is npm-compatible and supports standard package-lock.json v3 files.
Caching: Utoo caches packages by package and version and reuses them across projects through hard links.
Workspaces: Utoo supports isolated, optimized workspace management for monorepos.
pnpm migration: Utoo documents a one-command migration from pnpm that converts workspaces, overrides, and catalog configuration.
Bundler: @utoo/pack is a bundler powered by Turbopack and SWC with incremental builds and persistent caching.
Bundler features: The bundler lists HMR, code splitting, Lightning CSS, Webpack loader compatibility, bundle analysis, and image optimization among its features.
Browser environment: @utoo/web runs a web development environment in the browser using WebAssembly and OPFS, with package installation, builds, and HMR.
No backend server: The browser-native playground says it runs entirely in the browser with no server required.
Integrations: Utoo lists support for npm packages and registries, and automatic acceleration for cnpm-compatible registries such as npmmirror.com.
Platforms: The installation documentation provides macOS and Linux shell installation, a Windows PowerShell installer, and cross-platform installation through npm.
Support: The documentation invites users to give feedback through GitHub.
License: The maker’s public GitHub repository states that Utoo is licensed under the MIT License.
Maker: The public repository is under the utooland organization and links to utoo.land as the project site.

Where it ranks on Freedom251

Best JavaScript Package Managers in 2026#10 of 18

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Sources

utoo.land· checked 3 Oct 2026
utoo.land/en/docs/utoo· checked 3 Oct 2026
github.com/utooland/utoo· checked 3 Oct 2026
utoo.land/en/docs· checked 4 Oct 2026