Browserless is a headless browser API — it runs Chrome (or Chromium) in the cloud and gives you Puppeteer/Playwright access. Ceki gives you access to real Chrome sessions on real people's computers. They serve different ends of the automation spectrum.
Headless vs. real
Browserless runs headless (or headed) Chrome in containers. It's fast, scalable, and integrates natively with Puppeteer and Playwright. But headless Chrome is the most commonly detected automation method in 2026. Anti-bot systems specifically look for headless browser signatures.
Real browser sessions don't have headless signatures because they aren't headless. They're real Chrome windows on real computers. The browser was installed normally, used normally, and has all the characteristics of a normal browser.
Use case overlap
Browserless excels at: high-volume scraping of unprotected sites, PDF generation, screenshot services, and internal tool automation where detection isn't a concern. Ceki excels at: protected site automation, social media management, form filling with CAPTCHA, geo-targeted tasks, and any scenario where the target site actively tries to detect and block bots.
If your targets don't have anti-bot protection, Browserless is cheaper and faster. If they do, Ceki is more reliable.
Native Puppeteer/Playwright vs. custom SDK
Browserless's selling point is zero-code-change integration: point your existing Puppeteer/Playwright scripts at the Browserless endpoint and they work. Ceki uses its own SDK (Python, TypeScript, CLI, MCP). This means porting existing automation code requires some rewriting. However, for new AI agent workflows (especially with MCP), Ceki's native integration is simpler — no Puppeteer/Playwright knowledge needed.