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Deno vs Bun

2026年选择正确工具的详细比较

📅 最后更新: 2026年2月4日⏱️ 12 min read📊 JavaScript Runtimes

🏆 快速判定

平局!两者都是很好的选择。

Bun wins on raw speed and Node.js compatibility, making it ideal as a drop-in replacement. Deno wins on security, developer tooling, and web-standards alignment.

📊 Visual Comparison

总体评分比较

95
Deno
vs
80
Bun

分类细分

Deno: 20%功能Bun: 10%
Deno: 90%定价Bun: 90%
Deno: 70%易用性Bun: 70%
Deno: 75%支持Bun: 75%
Deno: 60%集成Bun: 60%

Deno 亮点

  • Secure by default with explicit permissions
  • Native TypeScript support without configuration
  • 💰 Free

Bun 亮点

  • Blazingly fast — fastest JS runtime in benchmarks
  • Drop-in Node.js replacement for most projects
  • 💰 Free

功能比较

FeatureDenoBun
TypeScriptNative (no config)Native (via transpiler)
SecurityPermission-based sandboxSame as Node.js
Package ManagerURL imports + npm:bun install (npm compatible)
BundlerBuilt-inBuilt-in (fast)
Test RunnerBuilt-inBuilt-in (Jest compatible)
LinterBuilt-in
FormatterBuilt-in
Node CompatibilityGrowing (node: specifier)Excellent
Web APIsfetch, WebSocket, etc.fetch, WebSocket, etc.
Edge DeployDeno DeployVia adapters
Single Executable
JSR RegistryPartial

什么是Deno?

D

Deno

JavaScript Runtimes

deno.com

Deno is a secure JavaScript and TypeScript runtime created by Ryan Dahl (Node.js creator). It features built-in TypeScript support, a secure-by-default permission system, and web-standard APIs.

优点

  • Secure by default with explicit permissions
  • Native TypeScript support without configuration
  • Web-standard APIs (fetch, Web Streams, etc.)
  • Built-in formatter, linter, and test runner
  • Deno Deploy for edge deployment
  • Growing Node.js compatibility layer

缺点

  • Smaller ecosystem than Node.js
  • Some npm packages still have compatibility issues
  • Adoption slower than expected
  • Permission system can be verbose for scripts
  • Fewer production deployments and case studies

什么是Bun?

B

Bun

JavaScript Runtimes

bun.sh

Bun is an all-in-one JavaScript runtime, bundler, transpiler, and package manager built with Zig and JavaScriptCore. It focuses on speed and Node.js compatibility, aiming to be a drop-in Node replacement.

优点

  • Blazingly fast — fastest JS runtime in benchmarks
  • Drop-in Node.js replacement for most projects
  • Built-in bundler, transpiler, and package manager
  • bun install is significantly faster than npm
  • Native SQLite support
  • Excellent npm and Node.js compatibility

缺点

  • Still maturing — some edge cases in compatibility
  • Less focus on security model than Deno
  • Linux and macOS only (Windows support improving)
  • Smaller team than Deno or Node
  • Some Node.js APIs still being implemented

价格比较

Deno

Free

Free and open-source

提供免费版View detailed pricing →

Bun

Free

Free and open-source

提供免费版View detailed pricing →

📊深度分析: Deno vs Bun

在Deno和Bun之间做选择可能很困难,因为两个工具都为现代工作流程提供了吸引人的功能。在这个全面的比较中,我们将分析从功能和定价到实际用例的各个方面,帮助您做出明智的决定。

Deno

Deno is a secure JavaScript and TypeScript runtime created by Ryan Dahl (Node.js creator). It features built-in TypeScript support, a secure-by-default permission system, and web-standard APIs.

Bun

Bun is an all-in-one JavaScript runtime, bundler, transpiler, and package manager built with Zig and JavaScriptCore. It focuses on speed and Node.js compatibility, aiming to be a drop-in Node replacement.

🎯最佳使用场景

何时选择Deno

  • 适合团队:

    Secure by default with explicit permissions

  • 适合小型企业:

    Native TypeScript support without configuration

  • 适合大企业:

    Web-standard APIs (fetch, Web Streams, etc.)

何时选择Bun

  • 适合个人:

    Blazingly fast — fastest JS runtime in benchmarks

  • 适合小型企业:

    Drop-in Node.js replacement for most projects

  • 适合团队:

    Built-in bundler, transpiler, and package manager

🔍功能深入分析

TypeScript

Deno:Native (no config)
Bun:Native (via transpiler)

Security

Deno:Permission-based sandbox
Bun:Same as Node.js

Package Manager

Deno:URL imports + npm:
Bun:bun install (npm compatible)

Bundler

Deno:Built-in
Bun:Built-in (fast)

Test Runner

Deno:Built-in
Bun:Built-in (Jest compatible)

Linter

Deno:Built-in
Bun:❌ No

💰定价分析

Deno

Free

Free and open-source

✅ Free tier available

Bun

Free

Free and open-source

✅ Free tier available

💡 Pro Tip

Both tools offer free trials or tiers. We recommend testing both with your actual workflow before committing to a paid plan.

🏆我们的推荐

经过广泛的分析和测试,这是我们的看法:Deno和Bun都是能够显著提高生产力的优秀工具。最佳选择取决于您的具体需求、工作流程和优先级。

Choose Deno if:

You want a secure-by-default runtime, prefer web-standard APIs, or value built-in developer tooling (linter, formatter, test runner).

Choose Bun if:

You want the fastest JavaScript runtime, need drop-in Node.js compatibility, or want the fastest package manager.

常见问题

Bun is easier to switch to since it's designed as a drop-in Node.js replacement. Deno requires more changes but offers security benefits. Both are worth evaluating, but Node.js remains a solid choice.

最终结论:您应该选择哪个?

选择Deno,如果

You want a secure-by-default runtime, prefer web-standard APIs, or value built-in developer tooling (linter, formatter, test runner).

选择Bun,如果

You want the fastest JavaScript runtime, need drop-in Node.js compatibility, or want the fastest package manager.