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Gotenberg vs Stirling PDF: catalog facts
Gotenberg	Stirling PDF
Free Free and open source under the MIT licence.	Freemium Free plan is $0/month with no card required (60+ tools, web/desktop/self-hosted, 500…
Self-hosted	Windows, macOS, Linux, Web, Self-hosted
Chromium and LibreOffice bundled in one container Converts 100+ office formats as well as HTML and Markdown	55+ PDF tools covering signing, converting, merging, editing, OCR and redaction, chained in a stateful workspace with… Runs on Docker, bare metal, Kubernetes or as native desktop apps for Windows, macOS and Linux
API only, with no graphical interface Requires Docker and some developer knowledge	Open-core: SSO, external database, Google Drive integration, SAML and audit logs are gated behind paid Team or… Manual server setup needs Java 25+ plus LibreOffice and Tesseract for conversions and OCR
Self-hosted	Self-hosted, Downloadable app, Web application, Hosted service
Open source	Open source
License: MIT	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.