Quickstart

100% Playwright-compatible - sync and async, every method, zero API changes beyond how the browser is launched. If you already have Playwright code, switching is two lines:

- from playwright.sync_api import sync_playwright
- with sync_playwright() as p:
-     browser = p.firefox.launch()
+ from invisible_playwright import InvisiblePlaywright
+ with InvisiblePlaywright() as browser:

Every session gets a distinct fingerprint (GPU, audio, fonts, screen, roughly 400 fields) and Bezier-curve mouse motion, with no further configuration required.

Sync

The synchronous API, for scripts that already call sync_playwright() directly:

from invisible_playwright import InvisiblePlaywright

with InvisiblePlaywright(proxy={"server": "socks5://gate.example.com:1080", "username": "u", "password": "p"}) as browser:
    page = browser.new_page()
    page.goto("https://example.com")
    page.click("#submit")   # mouse arcs to the button on a Bezier curve

Async

The same shape under asyncio, for code that already calls async_playwright():

from invisible_playwright.async_api import InvisiblePlaywright

async with InvisiblePlaywright(proxy={"server": "socks5://gate.example.com:1080", "username": "u", "password": "p"}) as browser:
    page = await browser.new_page()
    await page.goto("https://example.com")
    await page.click("#submit")

The browser object returned is a real playwright.sync_api.Browser / playwright.async_api.Browser - every Playwright method works exactly as documented upstream. There is no wrapped subset of the API to learn.

Logging the seed to replay a run

Every session is generated from a seed, whether you pass one or not. Log it and you can reproduce the exact same identity later:

sf = InvisiblePlaywright()
with sf as browser:
    print("seed =", sf.seed)
    # ...

Reproducible fingerprint

Pass a seed explicitly and every field it implies - GPU, canvas hash, audio context, fonts, screen - comes back identical, run after run:

with InvisiblePlaywright(seed=42) as browser:
    ...   # same GPU, same canvas hash, same audio context, every run

This is the difference between debugging a failure and guessing at one: same seed, same browser, so a failing run can be replayed exactly rather than hoping the next random draw reproduces it.

Short answers to the questions that lead here

Do I need to change my Playwright code to use invisible_playwright? No, beyond the two-line switch above. Every method - sync and async - is the same one you already call on playwright.sync_api.Browser / playwright.async_api.Browser; there is no wrapped subset of the API to learn.

Does every session get a different fingerprint automatically? Yes. GPU, audio, fonts, screen and the rest of the roughly 400 fields are generated fresh per session with no configuration required, and each gets Bezier-curve mouse motion by default too.

How do I make a fingerprint reproducible across runs instead of random? Pass seed= explicitly, or log sf.seed from a seedless run and reuse that value next time. Either way, every field the seed implies comes back identical.

Is the browser object a real Playwright object, or a wrapper around one? It is the real thing - playwright.sync_api.Browser or playwright.async_api.Browser - so anything documented upstream for that object works unchanged here.

Where do I set a proxy, force the timezone, or fix one fingerprint field while leaving the rest random? Configuration covers proxies, timezone and environment variables; Pinning fingerprint fields covers forcing individual values like a GPU model or screen size.

See also: Installation for downloading the patched Firefox binary this class drives, Configuration for proxy and timezone options, Pinning fingerprint fields for forcing specific values while the rest stays seed-derived, and giving an agent a reproducible browser identity for the full seed-reuse pattern this page introduces.

Configuration covers proxies, timezone and environment variables. Pinning fingerprint fields covers forcing specific values - a GPU model, a screen size - while leaving the rest seed-derived.