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FastAPI without reliance on CDNs for docs

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FastAPI is awesome, but the documentation pages (Swagger or Redoc) all depend on external CDNs, which is problematic if you want to run on disconnected networks.

This package includes the required files from the CDN and serves them locally. It also provides a super-simple way to get a FastAPI instance configured to use those files.

Under the hood, this simply automates the process described in the official documentation here.


You can install this package from PyPi:

pip install fastapi-offline


Given the example from the FastAPI tutorial:

from fastapi import FastAPI

app = FastAPI()

async def root():
    return {"message": "Hello World"}

Simply create a fastapi_offline.FastAPIOffline object instead:

from fastapi_offline import FastAPIOffline

app = FastAPIOffline()

async def root():
    return {"message": "Hello World"}

Any options passed to FastAPIOffline() except docs_url, redoc_url, favicon_url, and static_url are passed through to FastAPI(). docs_url and redoc_url are handled by fastapi-offline, and use the same syntax as normal fastapi library.

static_url can be used to set the path for the static js/css files, e.g. static_url=/static-files (default: /static-offline-docs).

Using a custom shortcut icon

By default, the FastAPI favicon.png is included and used as the shortcut icon on the docs pages. If you want to use a different one, you can specify it with the favicon_url argument:

app = FastAPIOffline(


  • This code is released under the MIT license.
  • Parts of Swagger are included in this package. The original license (Apache 2.0) and copyright apply to those files.
  • Parts of Redoc are included in this package. The original license (MIT) and copyright apply to those files.
  • The FastAPI favicon.png file is included in this package. The original license (MIT) and copyright apply to that file.

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