{"slug":"flask-vs-starlette))","title":"Flask vs Starlette","url":"https://www.aversusb.net/compare/flask-vs-starlette))","faqCount":5,"faqs":[{"question":"Can I use async/await with Flask?","answer":"Flask 2.0+ added native coroutine support for view functions, but it still runs on WSGI which doesn't natively support async. You'd need to use an ASGI server and quart (Flask's async equivalent) or add async extensions. Starlette has async as its core architecture, making it the better choice if async is essential."},{"question":"Which framework has better performance for handling concurrent users?","answer":"Starlette with Uvicorn handles 50-60x more concurrent requests than Flask with Gunicorn (4,500+ vs 75 req/sec). Flask uses multi-process concurrency (overhead-heavy), while Starlette's async model handles thousands of concurrent connections in a single process. For high-traffic APIs, Starlette wins decisively."},{"question":"Is Flask dead? Should I learn Starlette instead?","answer":"Flask is not dead—it remains the most-used Python web framework (67,000 GitHub stars vs Starlette's 9,500) and receives regular maintenance. Choose Flask for traditional web apps and learning; Starlette for modern async APIs. Most companies use both: Flask for monoliths, Starlette for microservices."},{"question":"Can I build a real-time app (chat, notifications) with Flask?","answer":"Yes, with Flask-SocketIO extension, but it's more complex. Starlette has WebSocket support built-in, making real-time features simpler to implement. For production chat apps, Starlette + Uvicorn is recommended due to better async handling and cleaner WebSocket API."},{"question":"Which framework is easier for beginners?","answer":"Flask is significantly easier for beginners. Its synchronous, straightforward request/response model is intuitive, and you can build a functional app in 2-3 days. Starlette requires understanding async/await patterns, making it better suited for intermediate Python developers. Start with Flask if you're new to web development."}],"faqPageSchema":{"@context":"https://schema.org","@type":"FAQPage","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#faq","url":"https://www.aversusb.net/compare/flask-vs-starlette))","inLanguage":"en-US","name":"Flask vs Starlette — FAQ","description":"Frequently asked questions about Flask vs Starlette","dateModified":"2026-07-09T15:30:29.956Z","author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"},"publisher":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"},"isPartOf":{"@type":"Article","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#article"},"license":"https://creativecommons.org/licenses/by/4.0/","speakable":{"@type":"SpeakableSpecification","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#faq-speakable","cssSelector":[".faq-answer"]},"mainEntity":[{"@type":"Question","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#q1","name":"Can I use async/await with Flask?","answerCount":1,"acceptedAnswer":{"@type":"Answer","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#a1","text":"Flask 2.0+ added native coroutine support for view functions, but it still runs on WSGI which doesn't natively support async. You'd need to use an ASGI server and quart (Flask's async equivalent) or add async extensions. Starlette has async as its core architecture, making it the better choice if async is essential.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/flask-vs-starlette))","upvoteCount":1,"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"}}},{"@type":"Question","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#q2","name":"Which framework has better performance for handling concurrent users?","answerCount":1,"acceptedAnswer":{"@type":"Answer","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#a2","text":"Starlette with Uvicorn handles 50-60x more concurrent requests than Flask with Gunicorn (4,500+ vs 75 req/sec). Flask uses multi-process concurrency (overhead-heavy), while Starlette's async model handles thousands of concurrent connections in a single process. For high-traffic APIs, Starlette wins decisively.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/flask-vs-starlette))","upvoteCount":1,"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"}}},{"@type":"Question","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#q3","name":"Is Flask dead? Should I learn Starlette instead?","answerCount":1,"acceptedAnswer":{"@type":"Answer","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#a3","text":"Flask is not dead—it remains the most-used Python web framework (67,000 GitHub stars vs Starlette's 9,500) and receives regular maintenance. Choose Flask for traditional web apps and learning; Starlette for modern async APIs. Most companies use both: Flask for monoliths, Starlette for microservices.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/flask-vs-starlette))","upvoteCount":1,"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"}}},{"@type":"Question","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#q4","name":"Can I build a real-time app (chat, notifications) with Flask?","answerCount":1,"acceptedAnswer":{"@type":"Answer","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#a4","text":"Yes, with Flask-SocketIO extension, but it's more complex. Starlette has WebSocket support built-in, making real-time features simpler to implement. For production chat apps, Starlette + Uvicorn is recommended due to better async handling and cleaner WebSocket API.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/flask-vs-starlette))","upvoteCount":1,"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"}}},{"@type":"Question","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#q5","name":"Which framework is easier for beginners?","answerCount":1,"acceptedAnswer":{"@type":"Answer","@id":"https://www.aversusb.net/compare/flask-vs-starlette))#a5","text":"Flask is significantly easier for beginners. Its synchronous, straightforward request/response model is intuitive, and you can build a functional app in 2-3 days. Starlette requires understanding async/await patterns, making it better suited for intermediate Python developers. Start with Flask if you're new to web development.","inLanguage":"en-US","url":"https://www.aversusb.net/compare/flask-vs-starlette))","upvoteCount":1,"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B"}}}]}}