simple-websocket
Simple WebSocket server and client for Python
Decision gist · record as of 2026-08-14
Yes. The package is actively maintained, has low install friction, carries no known vulnerabilities, and is licensed permissively. It ranks in the top 1000 PyPI packages by download volume. Install it if you need straightforward WebSocket functionality without framework overhead.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.6 or later; wsproto must be installed as a runtime dependency.
- Low install friction with a single runtime dependency (wsproto).
- Active maintenance with recent commits as of 2026-05-14 and a release from 2024-10-10.
License · maintenance · safety
permissive license (permissive) — MIT-licensed under permissive terms, allowing commercial and private use with minimal restrictions.
last release 2024-10-10 (673 days) · last repo commit 2026-05-14 · 88 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 28,063,819 downloads/mo, #840 on PyPI
Alternatives
Verify before relying
pip install simple-websocket
import simple_websocket
# Basic server usage
ws = simple_websocket.Server(environ)
data = ws.receive()
ws.send(data)- Whether the package supports both server and client modes equally or if one is primary
- Performance characteristics under high-concurrency or high-throughput scenarios
- Integration patterns with common Python web frameworks
What it is and what it does
simple-websocket is a Python library that implements WebSocket protocol support for building real-time bidirectional communication between clients and servers. It abstracts away the complexity of the WebSocket handshake and frame handling, exposing a simple interface for sending and receiving messages. The package depends only on wsproto for protocol-level operations, keeping dependencies minimal and installation straightforward.
The library is designed for developers who need WebSocket functionality without the overhead of larger frameworks. It supports current Python versions and maintains active development, making it suitable for applications requiring persistent connections, live updates, or event-driven communication patterns.
Use it for
- Building real-time chat or messaging applications with persistent client-server connections
- Implementing live data feeds or dashboards that push updates to connected clients
- Creating collaborative tools where multiple users need synchronized state
- Adding WebSocket support to existing Python web applications for bidirectional communication
- Prototyping or learning WebSocket protocol mechanics with minimal boilerplate
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The package is actively maintained, has low install friction, carries no known vulnerabilities, and is licensed permissively. It ranks in the top 1000 PyPI packages by download volume. Install it if you need straightforward WebSocket functionality without framework overhead.
Install
simple-websocket on PyPI
Before you install
Low install friction with a single runtime dependency (wsproto). Active maintenance with recent commits as of 2026-05-14 and a release from 2024-10-10.
Requires Python 3.6 or later; wsproto must be installed as a runtime dependency.
License in practice
MIT-licensed under permissive terms, allowing commercial and private use with minimal restrictions.
Quickstart
pip install simple-websocket
import simple_websocket
# Basic server usage
ws = simple_websocket.Server(environ)
data = ws.receive()
ws.send(data)Verify before relying
- Whether the package supports both server and client modes equally or if one is primary
- Performance characteristics under high-concurrency or high-throughput scenarios
- Integration patterns with common Python web frameworks
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.6 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagewsproto |
| Maintenance | Actively maintained 673 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 28,063,819 / month, #840 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Environment :: Web EnvironmentIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: Python :: 3 |
Evidence: simple_websocket-1.1.0-py3-none-any.whl
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See also python-engineio · ws4py · websocket · python-socketio · Flask-SocketIO · flask-sock · wslink · Pysher · gevent-websocket · pysignalr