Tornado

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

What is Tornado?

By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user.
Tornado is a tool in the Frameworks (Full Stack) category of a tech stack.

Who is using it?

83 companies use Tornado in their tech stacks, including Facebook, Delivery Hero, and HENNGE K.K..

Facebook

Delivery Hero

HENNGE K.K.

Zalando

TravelPerk

Uploadcare

Avito

Digital Services

Peak-AI

Keen IO

Warby Parker

Life360, serving 800 million API requests per day

Why developers like Tornado

Open source
So fast
Great for microservices architecture
Websockets
Simple
Asynchronous
Python
Lightweight
Handles well persistent connexions