Steel vs PDF-API.io

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Steel compared with PDF-API.io
Detail	Steel	PDF-API.io
What it does	Browser Infrastructure for AI Agents	The most intuitive PDF generator API
Stage	Growing	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	freemium	Not given
Pricing	Not given	Not given
Key features	Session API for on-demand cloud browser sessions Auto CAPTCHA solving Proxy and browser fingerprinting controls Sub-second session startup time Up to 24-hour session duration Cookie and storage management Compatible with Puppeteer, Playwright, and Selenium Session Viewer for debugging Auto sign-in for auth-walled websites	Drag-and-drop template designer HTML and CSS editor with Chrome rendering Dynamic data integration with variables Interactive form fields QR codes and barcodes support Dynamic tables with repeatable rows REST API integration Zapier no-code integration Webhooks support
What makes it different	Open-source self-hosted option available on GitHub Works with existing tools via standard CDP WebSocket Fastest session startup time in industry Built-in anti-bot and CAPTCHA handling One-line integration with Puppeteer	Dual editors for different skill levels No technical skills required for template design Google Chrome rendering engine for advanced web technologies Import and merge existing PDFs as templates
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	54 no change since last check	24 no change since last check
Trust Flow (Majestic)	28	8
Citation Flow (Majestic)	33	29
Referring domains (Majestic)	652	123

3 details filled in for both companies.

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