Docxtemplater is a JavaScript library that fills Word, PowerPoint and Excel templates with JSON data. Templates are ordinary .docx files with tags such as {name}, loops and conditions, so anyone who can use Word can change the layout. The core is open source under MIT or GPLv3, paid modules add images, HTML, charts, tables, QR codes and subtemplates, and it runs in Node.js or the browser on your own servers. It is a developer library for Office documents, which makes it a different offer to PDF Generator API. The comparison below breaks down where each fits.
Docxtemplater pricing vs PDF Generator API
Docxtemplater is free as an open source library, with yearly commercial licenses from €500 to €9,000 for its paid modules. PDF Generator API is a document generation platform from €8/month with a 14-day free trial, an embeddable editor, and dedicated or on-premises deployment.
Docxtemplater
Self hosted JavaScript library · yearly license
- Open source€0
- From€500/yr (1 module)
- Scales to€9,000/yr
The open source core covers tags, loops and conditions with unlimited servers. One Module costs €500 a year, PRO €1,250 for up to 4 modules, ENTERPRISE €3,000 for all 18 modules plus a Docker image with an HTTP API, and PREMIUM €9,000 with a browser version and consulting; One Module and PRO allow up to 5 instances. Output is .docx, .pptx, .xlsx or .odt, so PDFs need a separate converter such as LibreOffice. There is no hosted service, browser template editor, signature or fillable form fields, or security certification, since it runs on your own infrastructure.
PDF Generator API
Cloud plans · billed by credits · 14-day free trial
- Individualfrom €8/mo
- Teamfrom €52/mo
- Scales to250k credits/mo
Individual starts at 50 credits and 5 templates; Team starts at 1,000 credits, 25 templates and 10 workspaces, with unlimited templates and the embedded editor on higher tiers. Every plan includes a 14-day free trial, and on-premises deployment is available on request.
Docxtemplater alternative: which one fits
Docxtemplater is a mature choice when the deliverable is an Office file. Templates are plain Word, PowerPoint or Excel documents, so business users edit them in tools they already know, and paid modules add images, HTML, charts, dynamic tables, footnotes, QR codes, subtemplates and ODT. The free core and on premises licensing keep data on your own servers, and the vendor lists General Electric, Airbus, Deloitte and the WHO among its users. It fits Node.js teams that need .docx or .pptx output and can run the library and a PDF converter themselves. It has no hosted API outside the Enterprise Docker image, no browser editor, no native PDF rendering, and no signature or form fields.
PDF Generator API is a hosted platform that renders PDFs directly from JSON, so there is no LibreOffice to run or scale. It adds a drag and drop embeddable editor your own customers use in their own workspace, signature fields and document signing, fillable form fields, watermarks and encryption, existing PDFs used as templates, web forms, XRechnung and Factur-X electronic invoices, 8 official SDKs, and ISO 27001 certification with GDPR and HIPAA compliance. If data must stay in your network, on premises deployment is available too. To compare, rebuild one of your Docxtemplater templates during the free trial and send it the same JSON.
Docxtemplater vs PDF Generator API: FAQ
Is Docxtemplater cheaper than PDF Generator API?
The open source core is free, and paid licenses cost €500 a year for one module, €1,250 for up to 4 modules, €3,000 for all 18 modules with a Docker image, and €9,000 for Premium. You also run and maintain the servers, and PDF output needs a separate converter such as LibreOffice. PDF Generator API starts at €8 a month for 50 credits and €52 for 1,000, with hosting, PDF rendering and the template editor included.
What is the best Docxtemplater alternative?
If you want to keep Word templates and need a hosted API, Carbone is the closest. If your own customers need to design templates in a browser editor inside your product, or you need PDFs with signature fields, fillable form fields and ISO 27001 hosting, PDF Generator API covers those.
Can Docxtemplater generate PDFs?
Not directly. Docxtemplater produces .docx, .pptx and .xlsx files, and its documentation points to external tools such as LibreOffice to convert them to PDF. PDF Generator API renders PDFs natively from JSON and also returns HTML, ZIP or a URL, with no conversion step to host.
Comparing more tools? See Carbone vs PDF Generator API and Apryse vs PDF Generator API, or all comparisons. Last updated: October 2026.