Alternatives

Products that do what Cassiopeia does

Micro SaaS for easy and powerful PDF generation via API

1. 1
   Anvil PDF API▲185

   Twilio for PDFs: esign, fill, generate PDFs with one API

   2021

2. 2
   Doppio▲155

   HTML to PDF/image API

   2023

3. 3PB
   Pdf-Bot, an API/CLI for Generating PDFs Using Headless Chrome▲235

   2017 · github.com

4. 4
   Extract Tables by Docsumo▲123

   Free tool to extract tables from PDF and Images

   2021

5. 5TA
   ThePDFApi, a Chrome Based PDF Generation API Hosted on AWS▲41

   Hello HN! It kept surprising me how much of a hassle it is to generate a PDF with decent HTML5 rendering from my SaaS apps. I tried several free libs and APIs but ended up with botched rendering a lot of times. So I set out to simplify this chore by creating an AWS hosted HTML to PDF conversion API that's based on Chrome. This API will allow a dev to just send the HTML to our API and get a PDF in response without having to worry about running and managing Chrome somewhere in their infra. I just finished the first version of my landing page and hosted pdf generation API…

   2018

6. 6
   Kalmia▲162

   Simple, fast, FOSS documentation CMS

   2024

7. 7
   API Template▲118

   Generate images and PDFs with simple API

   2021

8. 8
   PDF Hippo: Dynamic PDF API for Devs▲222

   Convert Excel templates into dynamic PDFs

   2023

9. 9
   Erayaha.AI▲249

   Reviews & insights in MS Word / G Docs for airtight docs

   2025

10. 10
    DocsHound▲186

    AI turns demos into instant docs, chatbots & user insights

    2025

11. 11
    PlutoPDF▲110

    A URL to PDF converter wrapped behind a simple API.

    2021

12. 12
    Koncile▲154

    Capture all information in your documents

    2025

13. 13DT
    Docverter, the hosted document conversion service, is now open source▲146

    2012 · bugsplat.info

14. 14
    PDFMonkey▲164

    Automate your PDF generation, get the job done

    2023

15. 15
    Anvil PDF Filling API▲205

    The easiest way to programmatically populate any PDF

    2020

16. 16
    PPTX.ai▲195

    Generate slides from uploaded docs or a simple description

    2023

17. 17AA
    An API for filling out PDF forms▲209

    2017 · formapi.io

18. 18
    CxReports▲18

    Automated reports without coding

    Sep 2025

19. 19
    Dynamic, adaptive documentation▲156

    AI-powered docs, tailored to every user’s individual needs

    2025

20. 20
    Docera▲130

    Create documents in seconds with AI

    2023

21. 21
    Docamatic▲81

    Generate documents from your app the easy way.

    2020

22. 22
    Tiptap DOCX Import & Export▲149

    Enhanced DOCX conversion for your Tiptap editor

    2025

23. 23
    Document360 2.0▲141

    AI-powered self-service knowledge base for customers & teams

    2023

24. 24
    PDF2MD▲51

    Convert your PDFs to markdown With AI OCR

    2024

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