About Flask
Flask is a Python micro web framework ideal for rapidly constructing web applications, offering minimalism, flexibility, and modularity.
How many people use Flask
GitHub · npm
#4 of 59 Web servers we have counts for (of 91) · bars are GitHub stars across these neighbours; the category leader is Next.js at 142k · as of September 7, 2026
Compare
Flask#4 of 59 Web servers
Caddy#3 of 59 Web servers
Audit any site that runs Flask.
Enter a URL to score its stack for technology quality, version health, Lighthouse performance - and AI-readiness.
Implied technologies
Detecting Flask implies these are in the stack too - a report lists them alongside it.
How we audit Flask
We measure the detected version against Flask's release history and grade the surrounding stack with a Lighthouse-grade quality audit. Weak or outdated links weigh more - one risky dependency can pull the whole score down.
How the score worksMore technologies in Web servers
View all →
Technology definitions from a community-maintained catalogue, licensed GPL-3.0. Attribution and source.