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JSON API to HTML for reports: 6 document generation tools

For reports, we list 6 tools that turn JSON sent to an API into an HTML page. The lowest paid starting price is $19 a month, from SourceToDocs. The first three in our order are Carbone, Fluent (Windward) and SourceToDocs.

Tools
6
With USD price
3, from $19
Free tier
3
Direct / via Zapier
6 / 0
Checked
20 Oct 2026
  1. 01
    Carbone Editor's pick carbone.io

    Priced in EUR: Essential EUR 29/mo (EUR 26 annual).

    Outputs PDF, DOCX, XLSX, PPTX, HTML Template Word Also reads Airtable, Zapier/Make/n8n
    $28 EUR 26, converted
  2. 02
    Fluent (Windward) windwardstudios.com

    Formerly Windward Studios, acquired by PDFTron (now Apryse).

    Outputs PDF, DOCX, XLSX, PPTX, HTML Template Word Also reads Salesforce, Excel G2 4.4 (77)
    On request
  3. 03
    SourceToDocs sourcetodocs.com

    Data to Google Slides and Docs.

    Outputs Google Slides, Google Docs, PDF, PPTX, DOCX, HTML Template Google Docs Also reads Airtable, Google Sheets, CSV
    $19 / mo, cheapest here
  4. 04
    Docmosis docmosis.com

    Cloud Professional $49/mo, 4,000+ pages.

    Outputs PDF, DOCX, HTML Template Word
    $49 / mo
  5. 05
    jsreport jsreport.net

    Free up to 5 templates. Enterprise $395/yr single instance.

    Outputs PDF, DOCX, XLSX, PPTX, HTML Template HTML
    On request free tier
  6. 06
    Aspose.Words products.aspose.com

    SDK. Developer Small Business license $1,679 perpetual.

    Outputs PDF, DOCX, HTML, Markdown Template Word
    On request

What differs for JSON API

For reports delivered as HTML, templates are built in Word (4), Google Docs (1) and HTML (1). All 6 read JSON sent to an API without a Zapier, Make or n8n step in between. Of these, 3 have a free tier.

Besides HTML, these tools for reports also write PDF (6), DOCX (6) and PPTX (4). Your own code decides when to call the API, so a document can be built on any event. Published starting prices run from $19 to $49 a month, the top end from Docmosis. Prices were checked on 20 Oct 2026.

Nearby pages

Broader list: JSON API to HTML (7 tools).

Related lists: JSON API to HTML for invoices (6 tools), JSON API to PDF for reports (35), JSON API to DOCX for reports (15), JSON API to PPTX for reports (9), JSON API to XLSX for reports (6).

How to generate PDFs from a JSON API: a step-by-step guide, updated 21 Oct 2026.

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