𝗡𝗼𝗱𝗲.𝗷𝘀 𝘃𝘀 𝗕𝘂𝗻 𝘃𝘀 𝗗𝗲𝗻𝗼 𝟮: 𝗪𝗵𝗶𝗰𝗵 𝗥𝘂𝗻𝘁𝗶𝗺𝗲 𝘁𝗼 𝗨𝘀𝗲 𝗶𝗻 𝟮𝟬𝟮𝟲
The JavaScript runtime landscape changed in 2026. You no longer ask if you should switch. You ask which runtime fits your specific job.
Here is how the three leaders compare:
𝗡𝗼𝗱𝗲.𝗷𝘀 𝟮𝟰 It is the standard for enterprise teams. • Stability: It uses a long-term support (LTS) model. • TypeScript: You can run .ts files directly using --experimental-strip-types. It removes types but does not transform enums or decorators. • Testing: It has a built-in test runner with coverage reporting. • Best for: Large companies, regulated industries, and existing codebases.
𝗕𝘂𝗻 𝟭.𝟯 It is built for raw speed. • Performance: It handles 110,000 requests per second on simple endpoints. • Startup: Cold starts are 8-15ms. • Tooling: It includes a package manager, bundler, and test runner in one tool. • Speed: It installs a large monorepo in 1.2 seconds. npm takes 32 seconds for the same task. • Best for: Serverless functions, high-throughput APIs, and CLI tools.
𝗗𝗲𝗻𝗼 𝟮.𝟴 It is built for security and developer experience. • Compatibility: It works well with npm and package.json files. • TypeScript: It offers built-in type checking. Use deno check to find errors before you run code. • Security: It uses a default-deny permission model. • Standards: It follows web-standard Request and Response APIs. • Best for: TypeScript-heavy projects, security-sensitive apps, and edge deployments.
𝗪𝗵𝗶𝗰𝗵 𝗼𝗻𝗲 𝘀𝗵𝗼𝘂𝗹𝗱 𝘆𝗼𝘂 𝗽𝗶𝗰𝗸?
• Serverless or Edge: Use Bun for fast cold starts. • High-speed APIs: Use Bun for more requests per second. • Enterprise/Regulated: Use Node.js for stability and support. • Security-focused: Use Deno for sandboxed execution. • TypeScript-first: Use Deno for built-in type checking. • Monorepos: Use Bun for fast package installs.
Do not rely only on benchmarks. Run autocannon on your actual code before you make a change.