Deno vs Bun
2026年、最適なツールを選ぶための詳細比較
📚 Explore More
📊 Visual Comparison
総合スコア比較
カテゴリー別分析
Deno ハイライト
- ✅ Secure by default with explicit permissions
- ✅ Native TypeScript support without configuration
- 💰 Free
Bun ハイライト
- ✅ Blazingly fast — fastest JS runtime in benchmarks
- ✅ Drop-in Node.js replacement for most projects
- 💰 Free
機能比較
| Feature | Deno | Bun |
|---|---|---|
| TypeScript | Native (no config) | Native (via transpiler) |
| Security | Permission-based sandbox | Same as Node.js |
| Package Manager | URL imports + npm: | bun install (npm compatible) |
| Bundler | Built-in | Built-in (fast) |
| Test Runner | Built-in | Built-in (Jest compatible) |
| Linter | Built-in | ✗ |
| Formatter | Built-in | ✗ |
| Node Compatibility | Growing (node: specifier) | Excellent |
| Web APIs | fetch, WebSocket, etc. | fetch, WebSocket, etc. |
| Edge Deploy | Deno Deploy | Via adapters |
| Single Executable | ✓ | ✓ |
| JSR Registry | ✓ | Partial |
Denoとは？
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.
✅メリット
- •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
❌デメリット
- •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
Bunとは？
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.
✅メリット
- •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
❌デメリット
- •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
料金比較
📊詳細分析: Deno vs Bun
DenoとBunのどちらを選ぶかは、両ツールが現代のワークフローに魅力的な機能を提供しているため、難しい選択となることがあります。この包括的な比較では、機能や価格から実際のユースケースまで、あらゆる側面を分析し、情報に基づいた意思決定をお手伝いします。
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.
🎯最適なユースケース
Denoを選ぶべき時
- ✓チーム向け:
Secure by default with explicit permissions
- ✓中小企業向け:
Native TypeScript support without configuration
- ✓エンタープライズ向け:
Web-standard APIs (fetch, Web Streams, etc.)
Bunを選ぶべき時
- ✓個人向け:
Blazingly fast — fastest JS runtime in benchmarks
- ✓中小企業向け:
Drop-in Node.js replacement for most projects
- ✓チーム向け:
Built-in bundler, transpiler, and package manager
🔍機能の詳細分析
TypeScript
Security
Package Manager
Bundler
Test Runner
Linter
💰価格分析
Deno
Free and open-source
✅ 無料プランありBun
Free and open-source
✅ 無料プランあり💡 Pro Tip
両ツールは無料トライアルまたは無料プランを提供しています。有料プランに加入する前に、実際のワークフローで両方をテストすることをお勧めします。
🏆おすすめ
広範な分析とテストの結果、私たちの見解は次のとおりです：DenoとBunはどちらも生産性を大幅に向上させる優れたツールです。最適な選択は、あなたの具体的なニーズ、ワークフロー、優先事項によって異なります。
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.
よくある質問
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.
最終結論：どちらを選ぶべき？
✨ Denoを選ぶべき場合
You want a secure-by-default runtime, prefer web-standard APIs, or value built-in developer tooling (linter, formatter, test runner).
✨ Bunを選ぶべき場合
You want the fastest JavaScript runtime, need drop-in Node.js compatibility, or want the fastest package manager.