18.5
Docxtemplater is a JavaScript library that generates Word, PowerPoint, Excel, and OpenDocument files by filling templates with JSON data.
Free planOpen sourceAndroidiOSWeb
Best Docs Automation in 2026
Docs Automation services create files by combining information with templates. Compare how they generate files, which output formats and data sources they support, and whether an API is available. Listed services run on web, API, Windows, macOS, self-hosted and iOS platforms.
28.3
Free planAndroidiOSWeb
38.3
Carbone merges JSON data with document templates to produce files such as PDF, DOCX, XLSX and PPTX.
Free planOpen sourceWebAPILinux
- 4
7.9From $25 a month - 5
PDFMonkey
PDFMonkey is a cloud document-generation API that turns templates and dynamic data into files.
Free planWebAPI7.6From €5 a month - 6
Proposify
Proposify is a web app for sales teams to create, send, track, and close customized interactive proposals.
iOSWebAPI7.5 - 7
Legito
Legito is a document lifecycle and automation service for creating, managing, and signing documents.
Free planWebAPI7.2From €6.90 a month - 8
Zoho Writer
Zoho Writer is a web-based word processor for creating, editing, sharing, and collaborating on documents.
Free planAndroidiOSWebAPI7.1Free plan - 9
Anvil PDF Generation API
Anvil PDF Generation API creates PDFs on demand from HTML and CSS or Markdown.
Free planWebAPI7.0From $99 a month - 10
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 - 11
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 - 12
DocMake
DocMake generates Word (DOCX) and PDF documents by combining data with reusable templates.
Free planWebAPI6.7From $29 a month - 13
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 - 14
DocSpring
DocSpring is a PDF automation API for developers filling forms, generating documents, and collecting electronic signatures.
WebAPISelf-hosted6.5From $49 a month - 15
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 - 16
EDocGen
EDocGen is a no-code document-generation platform with a REST API for turning templates and data into files.
WebAPISelf-hosted6.4From $199 a month - 17
Adobe PDF Services API
Adobe PDF Services API is a cloud-based web API for creating, converting, and organizing PDF documents.
Free planWeb6.2Free plan - 18
Plumsail Documents
Plumsail Documents is a cloud service for generating, converting, protecting, and delivering business documents from reusable templates.
WebAPI6.2 - 19
SmartCOMM
SmartCOMM is customer communications management software for creating and managing personalized, interactive communications across channels.
WebAPImacOSSelf-hosted5.8 - 20
XaitPorter
WebAPI5.6 - 21
DocuSign Gen
Web5.3From $20 a month - 22
Oracle Documaker
WebLinuxWindows5.1 - 235.0
- 244.9
- 25
ActiveDocs
Web4.6
Choosing well
Compare free access and pricing
Check whether a service offers a free plan or instead charges or quotes pricing on request. Compare the free-plan scope with the paid-from price shown for a service.
Free trials are also offered by tools in this category. Check trial length and what remains available after it ends.
Check generation and output options
Compare the generation method used by a tool and the output formats it can produce. These details affect how well a service fits your document workflow.
Look for the formats your recipients and downstream systems require before choosing.
Match data sources and API access
Review the data sources a service accepts and whether API access is included. API support is useful when document generation must link to another system.
Compare these fields alongside the generation method so the workflow fits your input data.
Review limits and deployment
Monthly document limits can separate plans with similar prices. Check the stated limit against your expected document volume.
Available deployment choices span web, API, Windows, macOS and self-hosted setups. Choose a deployment model that suits your systems and control needs.
Check licence and device fit
Open-source code is offered by tools in this category. When code access or modification matters, review the licence and project details.
Android is not among the listed platforms, while iOS is. Confirm phone and tablet access before committing to a service.
Questions people ask
Can I start with a free plan?
A free plan is offered by tools in this category. Compare what the free plan includes with paid plans and any monthly document limit.
Are free trials available?
A free trial is offered by tools in this category. Check the trial terms and what plan applies when the trial ends.
What should I compare besides price?
Assess generation method, output formats, data sources, API access, monthly document limit and deployment. Together, these fields indicate whether a tool suits your workflow.
Is open-source code available?
Open-source code is offered by tools in this category. Review the licence and project details if code access matters to you.