Quart
Quart is an async Python web application framework. Using Quart you can,
- render and serve HTML templates,
- write (RESTful) JSON APIs,
- serve WebSockets,
- stream request and response data,
- do pretty much anything over the HTTP or WebSocket protocols.
Quickstart
Install from PyPI using an installer such as pip.
$ pip install quart
Save the following as app.py. This shows off rendering a template, returning
JSON data, and using a WebSocket.
from quart import Quart, render_template, websocket
app = Quart(__name__)
@app.route("/")
async def hello():
return await render_template("index.html")
@app.route("/api")
async def json():
return {"hello": "world"}
@app.websocket("/ws")
async def ws():
while True:
await websocket.send("hello")
await websocket.send_json({"hello": "world"})
$ quart run
* Running on http://127.0.0.1:5000 (CTRL + C to quit)
To deploy this app in a production setting see the deployment documentation.
Contributing
Quart is developed on GitHub. If you come across a bug, or have a feature request, please open an issue. To contribute a fix or implement a feature, follow our contributing guide.
Help
If you need help with your code, the Quart documentation and cheatsheet are the best places to start. You can ask for help on the Discussions tab or on our Discord chat.
Relationship with Flask
Quart is an asyncio reimplementation of the popular Flask web application framework. This means that if you understand Flask you understand Quart.
Like Flask, Quart has an ecosystem of extensions for more specific needs. In addition, a number of the Flask extensions work with Quart.
Migrating from Flask
It should be possible to migrate to Quart from Flask by a find and replace of
flask to quart and then adding async and await keywords. See the
migration documentation for more help.
Release files for Quart 0.23.1
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| quart-0.23.1.tar.gz | 65.6 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| quart-0.23.1-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 145.0 kB
Release files / quart-0.23.1.tar.gz
| Download URL | quart-0.23.1.tar.gz |
|---|---|
| Size | 65.6 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
1ca848415910bd2eb75e9d9b452388f892a37be222602a373622e6c633d1efbf
|
|
BLAKE2b-256 checksum How to use checksums |
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|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.12.9
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Aug 29, 2026.
Transparency logRelease files / quart-0.23.1-py3-none-any.whl
| Download URL | quart-0.23.1-py3-none-any.whl |
|---|---|
| Size | 79.4 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
78cf3a7249ab09f9e03d78b0b5e2472c4c09ce4615a99c2b1aa9a35261243b66
|
|
BLAKE2b-256 checksum How to use checksums |
5cc126dca56249da1a889ebb946000ab272712476209234f714ad3e8013ee005
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.12.9
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Aug 29, 2026.
Transparency log
