Granian: A Rust HTTP Server for Python Applications

Repositoryemmett-framework/granianTool

Granian is a high-performance HTTP server for Python applications built in Rust using Hyper and Tokio. It supports ASGI, WSGI, and RSGI interfaces, aiming to replace complex dependency stacks like Gunicorn plus Uvicorn with a single, fast binary package.

Key points

  1. Built on Rust, Hyper, and Tokio to deliver stable throughput and high concurrency.
  2. Supports HTTP/1 and HTTP/2 protocols, HTTPS, mTLS, Websockets, and direct static file serving.
  3. Offers compatibility across ASGI/3, WSGI, and RSGI application interfaces.
  4. Eliminates multi-layered Unix dependency stacks (such as Gunicorn combined with Uvicorn and http-tools).
  5. Not intended for pure-Python environments, setups using Trio or Gevent, or projects relying on unimplemented ASGI extensions.

Why it matters

Python web architectures often rely on multi-component server stacks that add operational overhead. Granian streamlines deployment into a single, cohesive Rust-powered server that excels in HTTP/2 handling and websocket concurrency.

Analysis

With more than 5,600 GitHub stars and continued maintenance into late 2026, Granian represents a mature alternative to traditional Python application servers. It is best suited for engineering teams prioritising throughput and simpler operational footprints, provided their workloads do not depend on Gevent or Trio.

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Summary generated by AI (Gemini 3.8 Flash, 27 September 2026). It may contain errors – the original source is authoritative.

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