stolosio.
OPEN SOURCE. SELF HOSTED.

Your browser fleet.
One endpoint.

Keep your automation. Use only the browser you need.

A gateway that starts lightweight, reaches for a browser when needed, and puts you in control of the fleet.

Deploy Stolosio Explore the source
MIT licensedCDP compatibleYour infrastructure
ACQUISITION, ORCHESTRATEDTHE ROUTING MODEL
⌘
Your automationPlaywright · CDP clients
CLIENT
WS /v1/connect
≋stolosioOne connection. A considered route.
01 / LIGHTWEIGHTHTTPSkip the browser
when you can.
BOUNDED HTML PATH
02 / MANAGEDBrowserlessYour browser fleet.
Your capacity.
NATIVE CDP
03 / OPTIONALBrowserbasePaid fallback.
Explicitly enabled.
NATIVE CDP
Correct acquisition comes first. Efficiency follows.
BUILT AROUND WHAT YOU ALREADY USE
PlaywrightChrome DevTools ProtocolDockerKubernetes
LESS BROWSER. MORE INTENT.

A browser is a tool.
Not always the first step.

Some pages only need an HTTP request. Others need the whole browser. Stolosio gives both paths a single front door.

01

Start with less.

Retrieve HTML through a bounded HTTP path. Automatic sessions can escalate when the page or your next command needs a browser.

Understand acquisition
02

Keep your code.

Point your CDP-compatible client at Stolosio. Native browser traffic passes through, with the browser in charge of command semantics.

Connect your client
03

Own the decisions.

Set fleet limits, inspect sessions, and control paid fallback. Domain evidence helps guide future routes on your own installation.

Explore fleet operations
A SMALL CHANGE TO GET STARTED

New endpoint.
Familiar workflow.

Connect Playwright to your local Stolosio instance, open a page, and retrieve its content. No Stolosio SDK required.

Run your first session
first_session.py
async with async_playwright() as p:
    browser = await p.chromium.connect_over_cdp(
        "ws://localhost:8411/v1/connect"
    )
    page = await browser.new_page()
    await page.goto("https://example.com")
    html = await page.content()
    await browser.close()
Python · Playwright Full runnable example in the docs ↗
AT HOME ON YOUR INFRASTRUCTURE

Start local. Bring your fleet.

From a first session on your laptop to your own Kubernetes cluster.

GET STARTED

Docker Compose

A local stack with PostgreSQL, NATS, and managed Browserless workers. No paid provider credentials required.

RUN YOUR OWN CLUSTER

Kubernetes & k3s

Deploy with Helm and a dedicated fleet controller. Bring your PostgreSQL, NATS, and networking.

BUILT IN THE OPEN

Your fleet. Your rules.

Stolosio is experimental software for local development and trusted networks. Explore it, run it, and help shape what comes next.

Read the documentation