Flask
Reviews
Star rating
Rank in Python Web Frameworks
Pros and cons
Pros
Cons
Traffic & LLM citations
Source: G2 review data
Winning from
Losing to
Key stats
Adoption by company size
| Segment | Share of reviews |
|---|---|
| Small Business | 59.2% |
| Mid-Market | 22.4% |
| Enterprise | 18.4% |
Quarterly history
| Quarter | Reviews | Star rating |
|---|---|---|
| 2025 Q3 | 1 | 5.0 |
| 2025 Q4 | 1 | 5.0 |
| 2026 Q2 | 2 | 4.8 |
Satisfaction ratings
What reviewers say
Flask Makes Building Simple, Beginner-Friendly API Backends Easy
“Flask is very easy to use for beginners and known for its simplicity to learn. With the help of flask we can easily build a full api backend for a web application. I have personally worked on many projects with flask which helps me to develop ai integrated systems more easier.”
Flask: Lightweight, flexible, and perfect for microservices and APIs
“Flask is great because it’s simple and super flexible. It’s perfect for small apps, APIs, or quick prototypes since you can get started fast and build things your way. The docs are clear, the learning curve’s easy, and you can plug in whatever tools you want, SQLAlchemy, Marshmal”
A Lightweight and Powerful Python Web Framework
“I appreciate Flask's simplicity and flexibility, making it easy to build web applications with minimal boilerplate code. The modular design and extensive documentation also contribute to a smooth development experience.”