Browserless alternatives

Run your own headless browser API for free.

TL;DR: Browserless is a managed headless browser service ($25–350+/mo) that exposes a Puppeteer-compatible CDP endpoint and REST API over the cloud. Openkova is a free, MIT-licensed REST API for HTML-to-image conversion that you self-host on your own server — no session fees, no CDP connection management, and no data leaving your network.

What Browserless provides

Browserless runs managed headless Chrome instances in the cloud and exposes them over the Chrome DevTools Protocol (CDP). You point your existing Puppeteer or Playwright scripts at their WebSocket endpoint instead of a local browser:

// Puppeteer pointing at Browserless
const browser = await puppeteer.connect({
  browserWSEndpoint: 'wss://chrome.browserless.io?token=YOUR_KEY',
});

Browserless also provides higher-level REST endpoints (/screenshot, /pdf, /scrape) as shortcuts. The value proposition is eliminating Chromium infrastructure from your stack — no binary downloads, no sandbox configuration, no server upkeep.

Plans start at $25/mo and scale to $350+/mo (Scale and Enterprise) based on concurrent sessions and usage. Enterprise plans are priced separately.

Where Browserless falls short

Comparison

FeatureBrowserlessOpenkova
HostingManaged SaaSSelf-hosted
CDP WebSocket endpoint
REST screenshot API✓ /screenshot✓ /api/convert/url
HTML snippet input✓ /screenshot (content param)✓ /api/convert/snippet
HTML file upload✓ /api/convert/file
Depth-based URL crawling✓ depth 1–2
SSE progress streaming
Reaches private / internal URLs
Data privacySent to Browserless serversStays on your servers
Pricing$25–350+/moFree
LicenseProprietaryMIT
Self-hostable✗ (cloud only)

Other alternatives to Browserless

Getting started with Openkova

git clone https://github.com/scnix-git/openkova
docker compose up

Screenshot a URL — equivalent to Browserless /screenshot:

curl -N -X POST http://localhost:3000/api/convert/url \
  -H "Content-Type: application/json" \
  -d '{"url": "https://example.com", "format": "png"}'

Render an HTML snippet directly:

curl -N -X POST http://localhost:3000/api/convert/snippet \
  -H "Content-Type: application/json" \
  -d '{"html": "<h1 style=\"font-family:sans-serif;padding:40px\">Report</h1>", "format": "pdf"}'

See the API reference for the full endpoint list and SSE streaming format, or read how to deploy Openkova with Docker.

Frequently asked questions

Is there a free alternative to Browserless?

Yes. Openkova is free and MIT-licensed. It provides a REST API for converting URLs and HTML to screenshots using self-hosted headless Chromium — no per-session cost, no managed service dependency.

What is the difference between Browserless and Openkova?

Browserless exposes a raw CDP endpoint so your Puppeteer scripts can connect to a remote browser. Openkova is a higher-level REST API: you POST a URL or HTML string and get back a PNG, JPEG, WebP, or PDF. No Puppeteer scripting required.

Can Openkova run Puppeteer scripts?

Openkova does not expose a CDP endpoint. It provides /api/convert/url, /api/convert/snippet, and /api/convert/file as REST endpoints. For use cases that require raw browser control, run Puppeteer directly against a local Chromium binary.

Does Openkova require Docker?

No — it runs on any Node.js 24+ environment. Docker is recommended because Chromium is pre-installed in the image, removing the setup step entirely. Deployment to Railway or Fly.io works out of the box with the included Dockerfile.

Also compare: ScreenshotOne alternatives, Urlbox alternatives, and puppeteer-renderer alternatives.