patchright
Undetected Python version of the Playwright testing and automation library.
Decision gist · record as of 2026-08-14
Yes, if you need to automate Chromium against bot-detection systems and accept the trade-offs. Patchright is actively maintained with no known vulnerabilities. However, install it only if standard Playwright fails due to detection—anti-detection techniques are inherently fragile and may break as detection systems evolve. Verify that your use case complies with the target site's terms of service.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10+.
- Chromium driver must be installed separately via `patchright install chromium`.
- Only supports Chromium-based browsers; Firefox and WebKit are not supported.
License · maintenance · safety
Apache-2.0 (permissive) — Licensed under Apache-2.0 (permissive), allowing use in commercial and proprietary projects with minimal restrictions.
last release 2026-07-05 (40 days) · last repo commit 2026-08-09 · 1,463 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 4,178,710 downloads/mo, #2,367 on PyPI
Alternatives
Verify before relying
pip install patchright
patchright install chromium
from patchright.sync_api import sync_playwright
with sync_playwright() as p:
browser = p.chromium.launch()
page = browser.new_page()
page.goto('http://example.com')
browser.close()- Whether anti-detection patches remain effective as bot-detection systems evolve
- Performance overhead compared to standard Playwright due to stealth modifications
- Compatibility guarantees if Playwright's API changes significantly in future releases
What it is and what it does
Patchright is a modified version of Playwright that patches known detection vectors used by anti-bot systems. It disables or modifies default command-line flags, avoids Runtime.enable and Console.enable leaks, and can interact with closed Shadow DOM elements—all designed to make automated browser sessions appear more like legitimate user activity. The package maintains Playwright's sync and async APIs, so existing code can often run unchanged by simply swapping the import statement.
The package is actively maintained with recent releases and passes several major anti-bot systems. It requires Python 3.10 or later and depends on pyee and greenlet. Browser drivers must be installed separately, and the documentation emphasizes using Google Chrome with specific launch configurations for best stealth results.
Use it for
- Web scraping sites protected by major bot-detection systems
- Automated testing of web applications that check for headless browser signatures
- Account automation workflows where detection avoidance is critical
- Extracting data from sites that actively block automated access
- Interaction with closed Shadow DOM elements without modifying page structure
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need to automate Chromium against bot-detection systems and accept the trade-offs.
Patchright is actively maintained with no known vulnerabilities. However, install it only if standard Playwright fails due to detection—anti-detection techniques are inherently fragile and may break as detection systems evolve. Verify that your use case complies with the target site's terms of service.
Install
patchright on PyPI
Before you install
Medium friction: precompiled wheels for multiple platforms (macOS, Linux, Windows, ARM) reduce build complexity, but requires a separate driver installation step and depends on pyee and greenlet for event handling and async support.
Requires Python 3.10+. Chromium driver must be installed separately via `patchright install chromium`. Only supports Chromium-based browsers; Firefox and WebKit are not supported.
License in practice
Licensed under Apache-2.0 (permissive), allowing use in commercial and proprietary projects with minimal restrictions.
Quickstart
pip install patchright
patchright install chromium
from patchright.sync_api import sync_playwright
with sync_playwright() as p:
browser = p.chromium.launch()
page = browser.new_page()
page.goto('http://example.com')
browser.close()Verify before relying
- Whether anti-detection patches remain effective as bot-detection systems evolve
- Performance overhead compared to standard Playwright due to stealth modifications
- Compatibility guarantees if Playwright's API changes significantly in future releases
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | 2 packagespyeegreenlet |
| Maintenance | Actively maintained 40 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 4,178,710 / month, #2,367 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Intended Audience :: DevelopersOperating System :: OS IndependentProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Topic :: Internet :: WWW/HTTP :: BrowsersTopic :: Software Development :: Testing |
Evidence: patchright-1.61.2-py3-none-macosx_10_13_x86_64.whl; patchright-1.61.2-py3-none-macosx_11_0_arm64.whl; patchright-1.61.2-py3-none-macosx_11_0_universal2.whl; patchright-1.61.2-py3-none-manylinux1_x86_64.whl; patchright-1.61.2-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl; patchright-1.61.2-py3-none-win32.whl; patchright-1.61.2-py3-none-win_amd64.whl; patchright-1.61.2-py3-none-win_arm64.whl
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