Alternatives

Sophosia alternatives for AI agents.

Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.

Current skill

Sophosia

THE reference manager with features including PDF reading/annotating, Markdown/Excalidraw note-taking, project/note linking, and more...

69
Quality
79
Trust
162
Stars
#1

Xournalpp

Similarity 134Trust 93Excellent 100

Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input from devices such as Wacom Tablets.

15K starsJun 15, 2026 pushdocument-processingC++PDF
$ npx skills add xournalpp/xournalpp
#2

Markitdown

Similarity 127Trust 90Excellent 100

Python tool for converting files and office documents to Markdown.

156K starsMay 26, 2026 pushdocument-processingPythonPDF
$ npx skills add microsoft/markitdown
#3

Docling

Similarity 127Trust 89Excellent 100

Get your documents ready for gen AI

63K starsJul 3, 2026 pushdocument-processingPythonPDF
$ npx skills add docling-project/docling
#4

Quarkdown

Similarity 126Trust 93Excellent 100

🪐 Markdown with superpowers: from ideas to papers, presentations, websites, books, and knowledge bases.

16K starsJun 17, 2026 pushdocument-processingKotlinPDF
$ npx skills add iamgio/quarkdown
#5

Sumatrapdf

Similarity 126Trust 89Excellent 100

SumatraPDF reader

17K starsJun 20, 2026 pushdocument-processingCPDF
$ npx skills add sumatrapdfreader/sumatrapdf
#6

React Pdf

Similarity 126Trust 92Excellent 100

Display PDFs in your React app as easily as if they were images.

11K starsJun 11, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add wojtekmaj/react-pdf
#7

Sioyek

Similarity 125Trust 90Excellent 100

Sioyek is a PDF viewer with a focus on textbooks and research papers

9.6K starsJun 13, 2026 pushdocument-processingCPDF
$ npx skills add ahrm/sioyek
#8

Paperless Ngx

Similarity 120Trust 93Excellent 100

A community-supported supercharged document management system: scan, index and archive all your documents

42K starsJun 20, 2026 pushdocument-processingPythonPDF
$ npx skills add paperless-ngx/paperless-ngx
#9

OCRmyPDF

Similarity 120Trust 93Excellent 100

OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched

34K starsJun 12, 2026 pushdocument-processingPythonPDF
$ npx skills add ocrmypdf/OCRmyPDF
#10

Koreader

Similarity 119Trust 93Excellent 100

An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Cervantes, Kindle, Kobo, PocketBook and Android devices

27K starsJun 24, 2026 pushdocument-processingLuaPDF
$ npx skills add koreader/koreader
#11

Koodo Reader

Similarity 119Trust 93Excellent 100

A modern ebook manager and reader with sync and backup capacities for Windows, macOS, Linux, Android, iOS and Web

27K starsJul 3, 2026 pushdocument-processingJavaScriptPDF
$ npx skills add koodo-reader/koodo-reader
#12

MinerU

Similarity 119Trust 90Excellent 100

Transforms complex documents like PDFs and Office docs into LLM-ready markdown/JSON for your Agentic workflows.

68K starsJun 17, 2026 pushdocument-processingPythonPDF
$ npx skills add opendatalab/MinerU
#13

Readest

Similarity 119Trust 93Excellent 100

Readest is a modern, feature-rich ebook reader designed for avid readers offering seamless cross-platform access, powerful tools, and an intuitive interface to elevate your reading experience.

22K starsJun 22, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add readest/readest
#14

Stirling PDF

Similarity 119Trust 87Excellent 100

#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

81K starsJun 18, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add Stirling-Tools/Stirling-PDF
#15

Docuseal

Similarity 118Trust 92Excellent 100

Open source DocuSign alternative. Create, fill, and sign digital documents ✍️

17K starsJun 15, 2026 pushdocument-processingRubyPDF
$ npx skills add docusealco/docuseal
#16

React Pdf

Similarity 118Trust 92Excellent 100

📄 Create PDF files using React

17K starsJun 9, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add diegomura/react-pdf

How to choose

When should you switch?

Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Sophosia if it already passes your workflow test and repository review.

Next step

Compare top candidates side by side

Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.