Alternatives

Koreader alternatives for AI agents.

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

Current skill

Koreader

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

100
Quality
100
Trust
27K
Stars
#1

Readest

Similarity 144Trust 100Excellent 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.

21K starsJun 4, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add readest/readest
#2

Kcc

Similarity 142Trust 100Excellent 100

KCC (a.k.a. Kindle Comic Converter) is a comic and manga converter for ebook readers.

5.2K starsJun 1, 2026 pushdocument-processingPythonPDF
$ npx skills add ciromattia/kcc
#3

Koodo Reader

Similarity 128Trust 100Excellent 100

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

27K starsJun 6, 2026 pushdocument-processingJavaScriptPDF
$ npx skills add koodo-reader/koodo-reader
#4

Kavita

Similarity 127Trust 100Excellent 100

Kavita is a fast, feature rich, cross platform reading server. Built with the goal of being a full solution for all your reading needs. Setup your own server and share your reading collection with your friends and family.

11K starsJun 6, 2026 pushdocument-processingC#PDF
$ npx skills add Kareadita/Kavita
#5

PyMuPDF

Similarity 127Trust 100Excellent 100

PyMuPDF is a high performance Python library for data extraction, analysis, conversion & manipulation of PDF (and other) documents.

9.9K starsJun 5, 2026 pushdocument-processingPythonPDF
$ npx skills add pymupdf/PyMuPDF
#6

Grimmory

Similarity 125Trust 100Excellent 100

Grimmory is an independent community fork of Booklore.

3.4K starsJun 10, 2026 pushdocument-processingJavaPDF
$ npx skills add grimmory-tools/grimmory
#7

Stirling PDF

Similarity 121Trust 100Excellent 100

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

81K starsJun 10, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add Stirling-Tools/Stirling-PDF
#8

MinerU

Similarity 121Trust 100Excellent 100

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

67K starsJun 6, 2026 pushdocument-processingPythonPDF
$ npx skills add opendatalab/MinerU
#9

Docling

Similarity 121Trust 100Excellent 100

Get your documents ready for gen AI

61K starsJun 9, 2026 pushdocument-processingPythonPDF
$ npx skills add docling-project/docling
#10

Siyuan

Similarity 121Trust 100Excellent 100

A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.

44K starsJun 7, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add siyuan-note/siyuan
#11

Paperless Ngx

Similarity 121Trust 100Excellent 100

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

42K starsJun 10, 2026 pushdocument-processingPythonPDF
$ npx skills add paperless-ngx/paperless-ngx
#12

Docuseal

Similarity 120Trust 100Excellent 100

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

17K starsJun 1, 2026 pushdocument-processingRubyPDF
$ npx skills add docusealco/docuseal
#13

Sumatrapdf

Similarity 120Trust 100Excellent 100

SumatraPDF reader

17K starsJun 10, 2026 pushdocument-processingCPDF
$ npx skills add sumatrapdfreader/sumatrapdf
#14

React Pdf

Similarity 120Trust 100Excellent 100

πŸ“„ Create PDF files using React

17K starsJun 1, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add diegomura/react-pdf
#15

Quarkdown

Similarity 119Trust 100Excellent 100

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

15K starsJun 9, 2026 pushdocument-processingKotlinPDF
$ npx skills add iamgio/quarkdown
#16

Xournalpp

Similarity 119Trust 100Excellent 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 2, 2026 pushdocument-processingC++PDF
$ npx skills add xournalpp/xournalpp

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 Koreader 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.