Frontend Frameworks

Tornado

Web framework and asynchronous networking library for Python.

Status
Generally available
Last checked
Checked · Oct 16, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

Tornado is a web framework and asynchronous networking library written in Python. It allows developers to build scalable network applications, including long polling, WebSockets, and other applications that require a long-lived connection to each user.

Tornado stands out as an open-source, Python-based solution for building scalable and high-performance web applications with support for asynchronous operations, making it ideal for real-time web features.

When it fits — and when it doesn’t

A good fit for

  • Developers building highly scalable and performant web applications with Python.

  • Teams requiring asynchronous processing capabilities for real-time features.

Look elsewhere if

  • Projects that require a fully managed backend service without self-hosting.

  • Applications needing extensive AI model integration out-of-the-box.

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited third-party integration support

    Compared to more popular frameworks like Django or Flask, Tornado has fewer pre-built integrations and plugins.

  2. 02

    Smaller community and slower issue resolution

    GitHub issues may take longer to resolve due to a smaller core development team and user base compared to more popular frameworks.

What it does well

  • Asynchronous networking library

  • Scalable web framework

  • Support for long-lived connections like WebSockets and long polling

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Tornado

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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Tornado — tracked on AI Navigator

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