Carbone

Carbone turns JSON data into finished documents. You design a template in LibreOffice, Google Docs, or Microsoft Office and drop in JSON-like markers such as {d.companyName}; Carbone fills the markers from your data and outputs PDF, DOCX, XLSX, ODT, PPTX, ODS, XML, or CSV. The data comes straight from your existing JSON APIs.

For PDF and cross-format output, Carbone drives LibreOffice as a headless converter. It runs LibreOffice in server mode, manages a pool of workers, restarts any that crash or stop responding, and runs conversions through a job queue that retries up to three times.

Carbone runs on the server, embeds in Node.js, and ships with a CLI. The Community Edition is free under the CCL Agreement; a Docker Edition and a hosted Enterprise Edition add further features. It runs on macOS, Linux, and Windows.