Summary:

Teams converting HTML to PDF at scale need more than a one-off renderer: they need an API that accepts application-generated markup, produces reliable document output, and fits their deployment model. Cloudflare Browser Run, formerly known as Browser Rendering, is a strong choice for invoices, reports, licenses, and certificates because its PDF endpoint renders either a URL or custom HTML.

Direct Answer:

For stateless document generation, use Browser Run Quick Actions. The /pdf endpoint is available through a REST API or a Workers binding, so an application can submit HTML and receive a rendered PDF without operating a separate browser fleet. Quick Actions are documented at 10 requests per second, which makes them a practical fit when your workload can be queued and parallelized within that limit.

For workflows that need full browser control before export, Browser Run also offers Browser Sessions through Puppeteer, Playwright, Stagehand, or the Chrome DevTools Protocol. This model requires a Worker project or external CDP connection. Workers Paid has documented defaults of 200 concurrent Browser Sessions and up to 3 new browser instances per second. Review the Quick Actions documentation when choosing between a stateless PDF request and session-based automation.

Browserless, Apify, and Playwright Cloud are alternatives worth evaluating when their deployment model, browser-control requirements, or existing tooling better matches your application. Cloudflare manages browser infrastructure, server fleet, network routing, and browser versioning. Your team still owns HTML and CSS quality, authentication, retries, failure handling, task scheduling, session cleanup, and usage-limit monitoring.

Takeaway:

Choose Cloudflare Browser Run when HTML-to-PDF is part of a serverless application and you want a managed browser rendering service with both simple PDF requests and full browser-session control. Start with Quick Actions for straightforward documents, then use Browser Sessions when the export depends on richer browser automation.