Category - Web Application Frameworks, Web Servers

Flask is a web framework. It provides you with tools, libraries and technologies that allow you to build a web application.

We have discovered 3,917 live websites that are using Flask.

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Technology usage statistics

Websites using Flask3,917 websites
Most popular in the country US
Market position in Web Application Frameworks#38
Market share in Web Application Frameworks<0.1%
Most popular version0.14.1

Technology adoption

Recent changes in Flask usage. (See Flask Usage Changes report)
Websites that added Flask+527
Websites that dropped Flask-575
Websites that changed version of Flask237

Distribution by websites popularity

Flask detection in the top websites by popularity
Top 10k sites0 websites
Top 100k sites1 websites
Top 1m sites33 websites

Websites utilizing Flask

Top websites that use Flask

paganinirossi.com ES96,119
caselaw.nsw.gov.au AU116,742
www.bno.nl NL132,621
projectwork.forscale.nl NL146,394
ami.conversantmedia.com US157,420
easel.io US186,656
See full domain list
Flat price per the report, subscription is not required.

Market Share

Flask market share within the Web Application Frameworks category

Geographical Distribution

Technology usage distribution by websites across the globe.

Alternative Technologies

React: Total 5,172,702 domains found using React
Microsoft ASP.NET: Total 4,807,962 domains found using Microsoft ASP.NET
Ruby on Rails: Total 816,945 domains found using Ruby on Rails
Backbone.js: Total 782,435 domains found using Backbone.js
AngularJS: Total 598,744 domains found using AngularJS
Microsoft ASP.NET MVC: Total 441,774 domains found using Microsoft ASP.NET MVC
Vue.js: Total 405,200 domains found using Vue.js
Laravel: Total 318,224 domains found using Laravel
Express: Total 236,639 domains found using Express
CodeIgniter: Total 195,828 domains found using CodeIgniter


  • 0 (28 subversions, 3,285 domains)
  • 1 (2 subversions, 349 domains)
  • 2 (6 subversions, 279 domains)