Deno vs FastAPI
A detailed comparison to help you choose the right framework & development for your business needs.
Platform Overview
Both Deno and FastAPI are popular framework & development solutions. Here's how they compare.
Deno
A secure JavaScript and TypeScript runtime built on V8 with built-in tooling, permissions model, and web standard APIs.
FastAPI
A modern, high-performance Python web framework for building APIs with automatic OpenAPI docs and type validation.
Feature Comparison
Deno Features
- Secure by default with permissions
- Built-in TypeScript support
- Standard library included
- Web standard APIs
- Deno Deploy edge hosting
FastAPI Features
- Automatic OpenAPI documentation
- Type-based validation with Pydantic
- Async and high-performance
- Dependency injection system
- WebSocket support
Best For
Deno — Best For
- Secure server-side TypeScript
- Edge function development
- Modern JavaScript runtime projects
FastAPI — Best For
- Python REST API development
- ML model serving endpoints
- High-performance Python backends
Our Verdict
Both Deno and FastAPI are excellent choices. Deno excels at secure server-side typescript, while FastAPI shines at python rest api development. The best choice depends on your specific needs, budget, and technical requirements.
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Frequently Asked Questions
Which is better, Deno or FastAPI?
Neither is universally better — it depends on your needs. Deno is best for secure server-side typescript, while FastAPI excels at python rest api development. We can help you evaluate which fits your business.
Can I switch from Deno to FastAPI?
Yes, migration is possible. The complexity depends on your current setup and data. Our team can plan and execute a smooth migration with minimal downtime.
Can I use Deno and FastAPI together?
In many cases, yes. Deno and FastAPI can complement each other depending on your architecture. We can advise on the best integration strategy.
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