FastAPI vs NestJS vs Spring Boot in 2026: I Built the Same API Service in All Three — Raw Truth…

📰 Medium · Python

Compare the performance of FastAPI, NestJS, and Spring Boot by building the same API service in each framework

intermediate Published 2 Jun 2026
Action Steps
  1. Build a simple API service using FastAPI to understand its performance capabilities
  2. Create the same API service using NestJS and compare the development speed and maintenance requirements
  3. Develop the identical API service using Spring Boot to evaluate its performance under heavy load (10k RPS)
  4. Configure and test each framework to measure their performance and identify potential bottlenecks
  5. Compare the performance data and development speed of all three frameworks to determine the best choice for a specific project
Who Needs to Know This

Backend developers and software engineers can benefit from this comparison to choose the best framework for their project

Key Insight

💡 FastAPI, NestJS, and Spring Boot have different strengths and weaknesses, and the choice of framework depends on the specific project requirements

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🚀 Compare FastAPI, NestJS, and Spring Boot performance and development speed to choose the best framework for your project 💻

Key Takeaways

Compare the performance of FastAPI, NestJS, and Spring Boot by building the same API service in each framework

Full Article

Same endpoints, same load (10k RPS), same team. Here’s the honest performance data, development speed, maintenance reality, and which one… Continue reading on T3CH »
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