Node.js has been the primary server-side JavaScript environment for over a decade. Recent alternatives, Deno and Bun, have gained attention due to their performance claims and modern architectures. Deno focuses on enhanced security and TypeScript support, while Bun emphasizes execution speed and startup time. Benchmarks show potential performance improvements over Node.js, but they often rely on simplistic examples that may not represent real-world scenarios. This analysis evaluates the performance of Node.js, Deno, and Bun using a realistic URL shortener service to assess true capabilities under practical workloads.
Node.js has maintained its status as the standard for server-side JavaScript environments for over ten years, used widely in large-scale production systems.
Deno offers enhanced security features, a modern module system, and built-in TypeScript support, addressing key limitations found in Node.js.
Bun focuses on high-performance execution and quick startup times, presenting itself as a newer alternative to both Node.js and Deno.
This comparative analysis uses a URL shortener service to evaluate the real-world performance of Node.js, Deno, and Bun, moving beyond simplified benchmarks.
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