Flask VS Sinatra

Compare Flask VS Sinatra and see what are their differences

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Flask

a microframework for Python based on Werkzeug, Jinja 2 and good intentions.

Sinatra

Classy web-development dressed in a DSL

Landing page //
2023-07-24

Landing page //
2018-09-30

Flask

Website: flask.pocoo.org
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Sinatra

Website: sinatrarb.com
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Flask features and specs

Simplicity
Flask is a micro-framework, meaning it is lightweight, easy to understand, and simple to use. It requires minimal setup to get a web application up and running.
Flexibility
Flask provides flexibility and control over the application's architecture, allowing developers to choose the components they need and avoid unnecessary bloat.
Extensibility
Flask supports various extensions to add capabilities like database integration, form validation, and authentication without compromising its core simplicity.
Documentation
Flask has comprehensive and well-organized documentation, making it easier for developers to learn and implement features effectively.
Community
Flask has a large and active community, providing ample resources like tutorials, code snippets, and third-party libraries that can help speed up development.
Testing
Flask is designed to be unit tested easily, allowing developers to test their applications and ensure reliability.

Possible disadvantages of Flask

Scalability
Flask may not be as scalable as some other frameworks for very large applications due to its minimalist design and lack of built-in features.
Boilerplate Code
Since Flask requires you to integrate and configure many components manually, codebases in Flask can sometimes contain a lot of boilerplate code.
Opinionated Architecture
While Flask provides flexibility, it also means there are fewer conventions. Developers must make more architectural decisions, which can be challenging for large team collaboration.
Limited Tools
Compared to more comprehensive frameworks, Flask offers fewer built-in tools and features, which may necessitate additional plugins or custom implementations.
Learning Curve for Complex Applications
While Flask is easy to learn for simple applications, it can become complex to manage as the application grows, requiring a good understanding of design patterns and software architecture.

Sinatra features and specs

Lightweight
Sinatra is a micro-framework, meaning it is minimalistic and lightweight, making it ideal for small applications and services.
Simplicity
The framework is easy to understand and use, requiring less boilerplate code compared to more complex frameworks like Rails.
Quick to Set Up
Sinatra allows for rapid application development as it can be quickly set up with minimal configuration.
Flexibility
Sinatra provides flexibility to developers, allowing them to structure their application in any way they see fit, without enforcing strict conventions.
Performance
Due to its minimalistic nature, Sinatra can sometimes offer better performance for smaller applications or specific use cases.
Middleware Integration
Sinatra works well with Rack middleware, which allows developers to easily add additional functionality to the application.
Active Community
Sinatra has an active community, providing developers with a wealth of plugins, resources, and support.

Possible disadvantages of Sinatra

Limited Built-In Functionality
Sinatra does not come with many built-in features, requiring developers to implement or integrate additional functionality on their own.
Not Ideal for Large Applications
Due to its simplicity and minimalistic nature, Sinatra may not be suitable for developing large-scale applications or complex systems.
Lack of Conventions
While the flexibility of Sinatra is a pro, the lack of enforced conventions can lead to inconsistent code and architecture, especially in larger teams or projects.
Documentation
While there is documentation available, it is not as extensive or comprehensive as that of larger frameworks like Rails.
Learning Curve
For developers coming from more comprehensive frameworks, adapting to Sinatra's minimalistic approach may require some adjustment.
Ecosystem
The ecosystem of plugins and extensions for Sinatra is smaller compared to more popular frameworks, potentially limiting the options available for developers.

Flask videos

+ Add

Built To Last A Life Time - Ragproper Modern Glass Flask Review

Sinatra videos

+ Add

How Frank Sinatra Invented the Album

Category Popularity

0-100% (relative to Flask and Sinatra)

Flask

Sinatra

Developer Tools

77 77%

Developer Tools

23% 23

Web Frameworks

76 76%

Web Frameworks

24% 24

Python Web Framework

95 95%

Python Web Framework

5% 5

Ruby Web Framework

0 0%

Ruby Web Framework

100% 100

User comments

Share your experience with using Flask and Sinatra. For example, how are they different and which one is better?

Reviews

These are some of the external sources and on-site user reviews we've used to compare Flask and Sinatra

Flask Reviews

The 20 Best Laravel Alternatives for Web Development

Flask is the micro that’s got your back without trying to run the show. It comes with the essentials but trusts you to pick your tools — no baggage attached, truly Pythonic at heart.

Source: tms-outsource.com

Top 9 best Frameworks for web development

The best frameworks for web development include React, Angular, Vue.js, Django, Spring, Laravel, Ruby on Rails, Flask and Express.js. Each of these frameworks has its own advantages and distinctive features, so it is important to choose the framework that best suits the needs of your project.

Source: www.kiwop.com

25 Python Frameworks to Master

You’ll also have access to some extension packages like Flask-RESTful, which adds support for building powerful REST APIs, and Flask-SQLAlchemy, a convenient way to use SQLAlchemy in your flask app.

Source: kinsta.com

3 Web Frameworks to Use With Python

Flask is a micro web framework for building web applications with Python. Here is the official web page of Flask.

Source: www.stratascratch.com

Top 10 Phoenix Framework Alternatives

Flask is a micro-framework, i.e., it does not bundle tools and libraries and instead uses third party libraries to deliver functionalities.

Source: blog.back4app.com

Sinatra Reviews

The 20 Best Laravel Alternatives for Web Development

Sinatra swings to its own tune, a Ruby framework for minimalist fans at heart. It’s about keeping it simple, just right for those times when all you need is a light, direct solution to serve and fly high.

Source: tms-outsource.com

Top 10 Phoenix Framework Alternatives

Sinatra is a free and open-source web app library that allows developers to build robust web apps using Ruby on top of the Rack web server.

Source: blog.back4app.com

10 Ruby on Rails Alternatives For Web Development in 2022

If you plan to avoid Ruby on Rails but still want to use the Ruby programming language you should consider Sinatra, - a domain-specific language developed by Blake Mizerany and released in 2007. Unlike RoR, which is a Full Stack Web Development Framework, Sinatra was aimed to be lightweight and agile. It provides the developer with minimum requirements and abstractions that...

Source: www.ideamotive.co

Best Alternatives to FastAPI App Free for Windows (2021)

Sinatra is a free and open source software web application library and domain-specific language written in Ruby. It is an alternative to other Ruby web application…

Source: alternativetoapp.com

Get Over Ruby on Rails — 3 Alternative Web Frameworks Worth Checking Out

Sinatra is one of the oldest web frameworks for Ruby. It was initially released in 2007 (Rails was released in 2004). Sinatra is a microframework that inspired a lot of other small frameworks the way Rails inspired full-stack frameworks. For example, the famous Express.js framework was inspired by Sinatra as well as some parts of Laravel.

Source: betterprogramming.pub

Social recommendations and mentions

Flask might be a bit more popular than Sinatra. We know about 42 links to it since March 2021 and only 40 links to Sinatra. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Flask mentions (42)

PSET 9 Finance - What is "disable response caching" and the function they ask to notice
"After configuring Flask, notice how this file disables caching of responses (provided you’re in debugging mode, which you are by default in your code50 codespace), lest you make a change to some file but your browser not notice. ". Source: about 2 years ago
How to Send an Email in Python
Flask, which offers a simple interface for email sending— Flask Mail. (Check here how to send emails with Flask). - Source: dev.to / over 2 years ago
Plotting Bookmarks with Flask, Matplotlib, and OAuth 2.0
Lang="en"> Plot Bookmarks!{% block title %}{% endblock %} rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" /> class="container"> Plot Bookmarks by Date {% block containercontent %}{% endblock %} /> class="footer"> class="text-muted"> >This is a... - Source: dev.to / almost 3 years ago
Determining what version of Flask is installed
What's the easiest way to determine which version of Flask is installed? Source: about 3 years ago
What is the point of uWSGI?
I'm looking at the WSGI specification and I'm trying to figure out how servers like uWSGI fit into the picture. I understand the point of the WSGI spec is to separate web servers like nginx from web applications like something you'd write using Flask. What I don't understand is what uWSGI is for. Why can't nginx directly call my Flask application? Can't flask speak WSGI directly to it? Why does uWSGI need to get... Source: about 3 years ago

Sinatra mentions (40)

Show HN: Dumbo – Hono inspired framework for PHP
Yeah, I believe Sinatra https://sinatrarb.com/ or Padrino https://padrinorb.com/ inspired Hono. So you are back to Ruby ;). - Source: Hacker News / 6 months ago
Using meta-programming in Ruby to build a REST API from a JSON file
Now because we are using Sinatra as our server, we would need a way to dynamically define new endpoints from the file. Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort. - Source: dev.to / 6 months ago
Rust needs a web framework for lazy developers
Something like https://sinatrarb.com/ for rust would be cool. - Source: Hacker News / 7 months ago
Even more Opentelemetry!
While Ruby is not this famous anymore, I still wanted the stack in my architecture. I eschewed Ruby on Rails in favor of the leaner Sinatra framework. I use sequel for database access. The dynamic nature of the language was a bit of a hurdle, which is why it took me more time to develop my service than with Go. - Source: dev.to / 11 months ago
Building a Sinatra app in Ruby
Sinatra is a lightweight web application framework written in Ruby. It provides a simple and easy-to-use syntax for building web applications. The framework focuses on being minimalistic, allowing developers to quickly create web applications without having to deal with a lot of the boilerplate code and relatively rigid way of doing things that accompany larger and more popular frameworks like Rails. - Source: dev.to / about 1 year ago