API comparison
Best tool to convert HTML to PDF
Looking for a PDFShift alternative for invoice generation, reports, and workflow PDFs? HTML2PDF Online is built for fast API integration, clear docs, predictable pricing, and pixel-perfect output quality for startup and growth teams.
Why teams choose HTML2PDF Online
- Simple REST API with copy-ready snippets for cURL, Node.js, Python, PHP, C#, and Ruby.
- Async conversion with webhook callbacks for heavy or queued PDF jobs.
- PDF protection options for password and permission controls.
- Live playground and clear error messages to shorten implementation time.
Feature comparison snapshot
| Capability | HTML2PDF Online | PDFShift |
|---|---|---|
| Developer quickstart and playground | Included | Included |
| Async conversion webhook callbacks | Included | Supported |
| PDF protection options (password/permissions) | Included | Limited [uncertain] |
| Trial for evaluation | 25 free pages | Plan dependent [uncertain] |
| Support access | Direct email support | Ticket support |
Try the API in minutes
curl -X POST "https://api.html2pdf.online/v1/convert" \
-u "sk_live_xxx:" \
-H "Content-Type: application/json" \
-d '{"source":"<html><body><h1>Hello PDF</h1></body></html>"}' \
--output output.pdfNext step
Evaluate quality with the playground, then move to production with async jobs and usage controls.