Docxtemplater is a JavaScript library that generates Word, PowerPoint, Excel, and OpenDocument files by filling templates with JSON data.
Best Document Template Management Software in 2026
When documents need to be generated from reusable templates, compare how each tool fits your workflow and systems. API access and data merge are useful points to weigh alongside approval workflows and brand controls; deployment options, output formats, and templates included add further detail. Check free-plan availability and the listed paid-from price for cost context. Docxtemplater, Carbone, and Anvil PDF…
Carbone merges JSON data with document templates to produce files such as PDF, DOCX, XLSX and PPTX.
Docassemble is a free, open-source system for building guided interviews and assembling documents.
- 4

PDFMonkey
PDFMonkey is a cloud document-generation API that turns templates and dynamic data into files.
Free planWebAPI7.6From €5 a month - 5

Legito
Legito is a document lifecycle and automation service for creating, managing, and signing documents.
Free planWebAPI7.2From €6.90 a month - 6
Anvil PDF Generation API
Anvil PDF Generation API creates PDFs on demand from HTML and CSS or Markdown.
Free planWebAPI7.0From $99 a month - 7
Documint
Documint turns data into formatted documents, including proposals, contracts, invoices, and reports.
WebAPI7.0From $39 a month - 8

Gavel
Gavel provides two legal software products: Gavel Exec for contract review and drafting, and Gavel Workflows for automating legal documents.
WebAPImacOSWindows7.0From $417 a year - 9

Docmosis
Docmosis generates documents from Microsoft Word and LibreOffice Writer templates, with output available as PDF, DOCX, ODT, or TXT.
WebAPILinuxSelf-hosted6.9From $49 a month - 10

Documentero
Documentero creates Word, Excel, and PDF documents from custom templates using forms, spreadsheets, APIs, or AI-assisted features.
Free planWebAPI6.9From $19 a month - 11
Marq
Free planWeb6.9From $12 a month - 12

Fluent by Apryse
Fluent by Apryse combines an SDK and a Microsoft Office add-in for creating data-driven documents, reports, and presentations from templates.
AndroidiOSWebAPI6.8 - 13

PDF Generator API
PDF Generator API automates PDF creation from data and reusable document templates.
WebAPISelf-hosted6.8From €80 a year - 14

Avvoka
Avvoka is a document automation platform for law firms and in-house legal teams creating, negotiating, signing, and analysing contracts.
WebAPIExtensionmacOS6.7 - 15

Formstack Documents
Formstack Documents is a cloud document-generation service for turning business data into documents such as proposals, contracts, invoices, and reports.
WebAPI6.7From $31.99 a month - 16

DocSpring
DocSpring is a PDF automation API for developers filling forms, generating documents, and collecting electronic signatures.
WebAPISelf-hosted6.5From $49 a month - 17

Docupilot
Docupilot creates documents by combining intelligent templates with data, then can send the results by email or to other applications.
WebAPI6.5From $29 a month - 18
Pathagoras
Pathagoras is a Windows add-in for Microsoft Word that assembles and automates documents from existing clauses, forms, and other text.
Windows6.2From $25 a month - 19

Plumsail Documents
Plumsail Documents is a cloud service for generating, converting, protecting, and delivering business documents from reusable templates.
WebAPI6.2 - 20
Templafy Email Signature Management
Templafy Email Signature Management gives enterprises a centralized way to create, deploy, and manage email signatures.
AndroidiOSWebmacOS6.2 - 21
We Brand
We Brand is an enterprise brand governance and templating platform with digital asset management and self-service portals.
AndroidiOSWebAPI6.2 - 22

Neota Logic
Neota Logic is a no-code platform for legal, compliance, and risk teams building governed applications with AI and human oversight.
WebAPISelf-hosted5.5 - 235.0
- 24

Contract Express
WebWindows4.9 - 25

HotDocs
Web4.9

