Best Python Asynchronous Web Frameworks in 2025

GeniePy is a modern SaaS boilerplate codebase in pure Python.

Key GeniePy features:

User Management Stripe Payments SEO-optimized Blog Tailwind CSS

paid €129.0 / One-off

All-in-one AI sales engine: discover 50M+ leads, scale cold email, manage CRM, and close deals faster with Co-pilot.

Key SalesTarget.ai features:

Lead Generation Email Outreach CRM & Integrations Co-Pilot

Try for free paid Free Trial $30.0 / Monthly

This starter kit includes all the integrations you need to build a SaaS app fast!

Key Ship SaaS features:

User-Friendly Interface Scalability Integration Capabilities Cost-Effective

Build a Node.js & React app at warp speed with a SaaS boilerplate.

Key UseGravity.App features:

Ease of Use Rapid Development Integrated Features Scalability

The Pegasus SaaS boilerplate provides core features like user management, teams, subscription billing, APIs and more in a codebase that developers love.

Key SaaS Pegasus features:

Rapid Deployment Scalability Cost Efficiency Automatic Updates

FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.

Key FastAPI features:

High Performance Automatic Interactive API Documentation Type Checking and Validation Ease of Use

Open Source free

A Python web framework and asynchronous networking library, originally developed at FriendFeed.

Key Tornado features:

Asynchronous Networking WebSockets Support Scalability Integrated with asyncio

Python 3.5+ web server that's written to go fast.

Build your MVP in six weeks.