Alternatives

Catalyst alternatives for AI agents.

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

Current skill

Catalyst

🚀 Catalyst is a C# Natural Language Processing library built for speed. Inspired by spaCy's design, it brings pre-trained models, out-of-the box support for training word and document embeddings, and flexible entity recognition models.

81
Quality
83
Trust
853
Stars
#1

ShareX

Similarity 111Trust 89Excellent 100

ShareX is a free and open-source application that enables users to capture or record any area of their screen with a single keystroke. It also supports uploading images, text, and various file types to a wide range of destinations.

38K starsJun 19, 2026 pushdocument-processingC#OCR
$ npx skills add ShareX/ShareX
#2

Kavita

Similarity 109Trust 89Excellent 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 19, 2026 pushdocument-processingC#PDF
$ npx skills add Kareadita/Kavita
#3

Tesseract

Similarity 105Trust 87Excellent 100

Tesseract Open Source OCR Engine (main repository)

75K starsJun 13, 2026 pushdocument-processingC++OCR
$ npx skills add tesseract-ocr/tesseract
#4

Docling

Similarity 105Trust 87Excellent 100

Get your documents ready for gen AI

63K starsJul 17, 2026 pushdocument-processingPythonPDF
$ npx skills add docling-project/docling
#5

ImageToolbox

Similarity 103Trust 89Excellent 100

🖼️ Image Toolbox is a powerful app for advanced image manipulation. It offers dozens of features, from basic tools like crop and draw to filters, OCR, and a wide range of image processing options

13K starsJun 18, 2026 pushdocument-processingKotlinPDF
$ npx skills add T8RIN/ImageToolbox
#6

Bisheng

Similarity 103Trust 90Excellent 100

BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent, Unified model management, Evaluation, SFT, Dataset Management, Enterprise-level System Management, Observability and more.

11K starsJun 29, 2026 pushdocument-processingTypeScriptOCR
$ npx skills add dataelement/bisheng
#7

Liteparse

Similarity 103Trust 87Excellent 100

A fast, helpful, and open-source document parser

10K starsJun 19, 2026 pushdocument-processingRustPDF
$ npx skills add run-llama/liteparse
#8

X AnyLabeling

Similarity 103Trust 89Excellent 99

Effortless data labeling with AI support from Segment Anything and other awesome models.

9.5K starsJun 20, 2026 pushdocument-processingPythonOCR
$ npx skills add CVHub520/X-AnyLabeling
#9

QuestPDF

Similarity 100Trust 84Excellent 98

QuestPDF is a modern library for PDF document generation. Its fluent C# API lets you design complex layouts with clean, readable code. Create documents using a flexible, component-based approach.

14K starsJun 10, 2026 pushdocument-processingC#PDF
$ npx skills add QuestPDF/QuestPDF
#10

PDFPatcher

Similarity 100Trust 84Excellent 97

PDF补丁丁——PDF工具箱,可以编辑书签、剪裁旋转页面、解除限制、提取或合并文档,探查文档结构,提取图片、转成图片等等

13K starsJul 8, 2026 pushdocument-processingC#PDF
$ npx skills add wmjordan/PDFPatcher
#11

PaddleOCR

Similarity 97Trust 89Excellent 100

Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.

83K starsJun 16, 2026 pushdocument-processingPythonOCR
$ npx skills add PaddlePaddle/PaddleOCR
#12

Paperless Ngx

Similarity 97Trust 89Excellent 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
#13

OCRmyPDF

Similarity 97Trust 89Excellent 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
#14

Koodo Reader

Similarity 97Trust 89Excellent 100

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

27K starsJul 9, 2026 pushdocument-processingJavaScriptPDF
$ npx skills add koodo-reader/koodo-reader
#15

Koreader

Similarity 97Trust 89Excellent 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
#16

Markitdown

Similarity 97Trust 87Excellent 100

Python tool for converting files and office documents to Markdown.

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

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 Catalyst 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.