Flask vs. Fastify vs. Javalin

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Description

What is Flask?

Flask is intended for getting started very quickly and was developed with best intentions in mind.

What is Fastify?

Fastify is a web framework highly focused on speed and low overhead. It is inspired from Hapi and Express and as far as we know, it is one of the fastest web frameworks in town. Use Fastify can increase your throughput up to 100%.

What is Javalin?

Javalin started as a fork of the Spark framework but quickly turned into a ground-up rewrite influenced by express.js. Both of these web frameworks are inspired by the modern micro web framework grandfather: Sinatra, so if you’re coming from Ruby then Javalin shouldn’t feel too unfamiliar.

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Pros

Why do developers choose Flask?
  • Why do you like Flask?

    Why do developers choose Fastify?
    Why do you like Fastify?

    Why do developers choose Javalin?
    Why do you like Javalin?

    Cons

    What are the cons of using Flask?
    No Cons submitted yet for Flask
    Downsides of Flask?

    What are the cons of using Fastify?
    No Cons submitted yet for Fastify
    Downsides of Fastify?

    What are the cons of using Javalin?
    No Cons submitted yet for Javalin
    Downsides of Javalin?

    Companies

    What companies use Flask?
    418 companies on StackShare use Flask
    What companies use Fastify?
    4 companies on StackShare use Fastify
    What companies use Javalin?
    0 companies on StackShare use Javalin

    Integrations

    What tools integrate with Flask?
    7 tools on StackShare integrate with Flask
    What tools integrate with Fastify?
    1 tools on StackShare integrate with Fastify
    What tools integrate with Javalin?
    2 tools on StackShare integrate with Javalin

    What are some alternatives to Flask, Fastify, and Javalin?

    • ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
    • Django REST framework - Web APIs for Django
    • Sinatra - Classy web-development dressed in a DSL
    • hapi - Server Framework for Node.js

    See all alternatives to Flask

    Latest News

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