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.

87
Quality
88
Trust
853
Stars
#1

AI Hands On

Similarity 116Trust 93Excellent 100

A group of notebooks and other files which can help you learn AI from scratch.

1.1K starsJun 2, 2026 pushdocument-processingJupyter NotebookOCR
$ npx skills add Ramakm/ai-hands-on
#2

ShareX

Similarity 112Trust 98Excellent 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 13, 2026 pushdocument-processingC#OCR
$ npx skills add ShareX/ShareX
#3

Ailab

Similarity 112Trust 88Strong 79

Experience, Learn and Code the latest breakthrough innovations with Microsoft AI

7.8K starsJun 26, 2024 pushdocument-processingC#OCR
$ npx skills add microsoft/ailab
#4

Kavita

Similarity 110Trust 97Excellent 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 15, 2026 pushdocument-processingC#PDF
$ npx skills add Kareadita/Kavita
#5

Rpaframework

Similarity 109Trust 96Excellent 100

Collection of open-source libraries and tools for Robotic Process Automation (RPA), designed to be used with both Robot Framework and Python

1.5K starsJun 14, 2026 pushdocument-processingPythonOCR
$ npx skills add robocorp/rpaframework
#6

LLPlayer

Similarity 108Trust 94Excellent 100

The media player for language learning, with dual subtitles, AI-generated subtitles, real-time translation, and more!

3.8K starsMay 23, 2026 pushdocument-processingC#OCR
$ npx skills add umlx5h/LLPlayer
#7

FastReport

Similarity 108Trust 95Excellent 100

Free Open Source Reporting tool for .NET6/.NET Core/.NET Framework that helps your application generate document-like reports

3.1K starsJun 11, 2026 pushdocument-processingC#PDF
$ npx skills add FastReports/FastReport
#8

Awesome AI Books

Similarity 107Trust 92Excellent 94

Some awesome AI related books and pdfs for learning and downloading, also apply some playground models for learning

1.7K starsFeb 8, 2026 pushdocument-processingJupyter NotebookPDF
$ npx skills add zslucky/awesome-AI-books
#9

PdfPig

Similarity 107Trust 93Excellent 100

Read and extract text and other content from PDFs in C# (port of PDFBox)

2.5K starsJun 12, 2026 pushdocument-processingC#PDF
$ npx skills add UglyToad/PdfPig
#10

Tesseract

Similarity 106Trust 96Excellent 100

Tesseract Open Source OCR Engine (main repository)

75K starsJun 13, 2026 pushdocument-processingC++OCR
$ npx skills add tesseract-ocr/tesseract
#11

Docling

Similarity 105Trust 92Excellent 100

Get your documents ready for gen AI

62K starsJun 15, 2026 pushdocument-processingPythonPDF
$ npx skills add docling-project/docling
#12

Book Nlp

Similarity 105Trust 71Needs review 46

Natural language processing pipeline for book-length documents (archival Java version; for current Python version, see: https://github.com/booknlp/booknlp)

317 starsFeb 4, 2022 pushdocument-processingJavaNLP
$ npx skills add dbamman/book-nlp
#13

Swift AI

Similarity 105Trust 84Strong 78

The Swift machine learning library.

6.0K starsMay 3, 2017 pushdocument-processingSwiftOCR
$ npx skills add Swift-AI/Swift-AI
#14

ImageToolbox

Similarity 105Trust 97Excellent 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 15, 2026 pushdocument-processingKotlinPDF
$ npx skills add T8RIN/ImageToolbox
#15

ExtractThinker

Similarity 105Trust 89Excellent 85

ExtractThinker is a Document Intelligence library for LLMs, offering ORM-style interaction for flexible and powerful document workflows.

1.6K starsAug 27, 2025 pushdocument-processingPythonOCR
$ npx skills add enoch3712/ExtractThinker
#16

Bisheng

Similarity 105Trust 98Excellent 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 14, 2026 pushdocument-processingTypeScriptOCR
$ npx skills add dataelement/bisheng

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.