Comparison

Bun vs crates.io/Cargo

On the evidence we track, Bun leads this comparison with a composite score of 74/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★Bun74
crates.io/Cargo55
Score
vioscaleAI score
Bun74 / 100medium · 56%
crates.io/Cargo55 / 100low · 35%
Pricing
Free tier
Bun✓
crates.io/Cargo✓
Model
crates.io/Cargoopen_source
Price level
Bunfree
crates.io/Cargofree
Transparent
Bun–
crates.io/Cargo✓
Reliability
Status page
Bun–
crates.io/Cargo✓
Adoption
Dependent repos
crates.io/Cargo9,209
Github stars
crates.io/Cargo15,582
Package downloads weekly
crates.io/Cargo–
Activity
Commits last 30d
Bun100
crates.io/Cargo100
Release
Cadence days
Bun14
crates.io/Cargo–
History
crates.io/Cargo–
License
Spdx
BunMIT
crates.io/CargoApache-2.0
Language
Primary
BunRust
crates.io/CargoRust
Market
Availability
Bun–
crates.io/CargoAvailable worldwide
Content
Faq
crates.io/Cargo5 items

Capabilities

Feature-by-feature on the axes that matter for package registries. “-” means undocumented, not absent.

Core
Role
BunPackage manager client
crates.io/CargoPackage manager client
Ecosystem
Ecosystem / language
BunJavaScript
crates.io/CargoRust
Deployment
Deployment
BunCLI-local
crates.io/CargoCLI-local
Formats
Package formats supported
BunMany formats
crates.io/CargoSingle ecosystem
Hosting
Private / scoped packages
Bun✓
crates.io/Cargo-
Upstream proxy / caching
Bun✓
crates.io/Cargo-
Resolution
Lockfile / deterministic installs
Bun✓
crates.io/Cargo✓
Workspaces / monorepo
Bun✓
crates.io/Cargo-
Content-addressable store
Bun✓
crates.io/Cargo-
Supply chain
Supply-chain integrity
Bun✓
crates.io/Cargo-
Vulnerability / licence scanning
Bun✓
crates.io/Cargo-
Licensing
Openness
BunOpen-source
crates.io/CargoOpen-source
Pricing
Pricing model
BunFree / OSS
crates.io/CargoFree / OSS

What each one is

The product in its own terms, so the numbers below have context.

Bun

Leader

A JavaScript runtime that executes TypeScript natively using JavaScriptCore, bundling a package manager, bundler, and test runner with Node.js compatibility and npm ecosystem support.

Independently observed

crates.io/Cargo

The official tool for managing Rust project dependencies, compiling code, and publishing packages to registries like crates.io

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Bun

Leader
Open sourceFree tier

Free and open source

as of verify ↗

crates.io/Cargo

Open sourceFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
macOS
Bun✓
crates.io/Cargo✗
Windows
Bun✓
crates.io/Cargo✗
Linux
Bun✓
crates.io/Cargo✗
CLI
Bun✓
crates.io/Cargo✓
Deployment
Cloud / SaaS
Bun✓
crates.io/Cargo✗
Self-hosted
Bun✓
crates.io/Cargo✓
Still deciding?

Bun or crates.io/Cargo: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.