🙋♀️ iyulab is a tech company based in Korea.
- Filer - AI-Powered File Management Utility
- Forge Tools - Local AI Desktop Tools for Industrial Professionals (SPC, FMEA, 8D, DOE, Lens, SOP)
- U-Sphere - E2E Unified AI Knowledge Service Platform
- U-MES - Manufacturing Execution System
- U-CMMS - Computerized Maintenance Management System
Core framework for building LLM-powered agent applications in .NET.
- ironhive - .NET pipeline framework for enterprise AI applications — multi-provider LLM integration, RAG pipelines, and multi-agent orchestration with a fluent builder API
- ironbees - GitOps-style declarative AI agent management — define agents with YAML and Markdown, orchestrate multi-agent workflows, and track costs via TokenMeter
- ironhive-agent - Reusable .NET agent engine with streaming loop, smart context compaction, MCP plugin integration, and built-in safety permission rules
- ironhive-flux - Bridge SDK connecting IronHive with the Flux ecosystem for embedding generation, text completion, image-to-text, and RAG chatbot development
Utilities and SDKs for working with large language models.
- lm-supply - On-demand local AI model inference for .NET — lazy loading, hardware-aware GPU/CPU selection, 10 task types including embeddings, generation, vision, and audio
- memory-indexer - MCP server and .NET SDK implementing a 3-axis memory system (type ×ばつ scope ×ばつ tier) for LLM context management beyond finite context windows
- index-thinking - .NET building block for LLM integration — truncation recovery, reasoning extraction, sliding-window context, and token budget monitoring
- ToolCallParser - Unified .NET parser for LLM tool calls across 20+ providers with auto-detection and extensible custom parser support
- TokenMeter - Token counting, cost calculation, and session-based usage tracking across 12 LLM providers
- FluxGuard - 3-layer .NET guardrail library for LLM apps — covers prompt injection, jailbreaks, toxicity, PII masking, and format validation
- Loopai - Framework that compiles natural language specs into locally executable programs for cost-efficient, privacy-preserving AI task processing
Execution environments and automation platforms for AI-integrated workflows.
- code-beaker - Multi-runtime sandboxed code execution platform supporting Docker, Deno, Bun, Node.js, and Python via WebSocket and JSON-RPC 2.0
- Pulsa - File-watching automation platform that chains audio conversion, speech-to-text, and LLM processing into document pipelines with MCP server integration
End-to-end Retrieval-Augmented Generation pipeline: Ingest → Parse → Preprocess → Index → Search.
- FileFlux - Transform PDF, DOCX, HWP, and more into RAG-optimized chunks via a 5-stage pipeline with Rust-based FFI readers
- WebFlux - Crawl, extract, and chunk web content into RAG-ready formats with interface-based AI service integration
- FluxCurator - Zero-dependency text preparation for RAG — multilingual cleaning, PII masking, content filtering, and semantic chunking across 14 languages
- FluxImprover - LLM-powered quality layer for RAG pipelines — enriches chunks with summaries, keywords, QA pairs, and multi-stage quality scoring
- FluxIndex - Hybrid vector + keyword search with multi-backend storage (SQLite, PostgreSQL, Neo4j, Qdrant) and MCP server integration
High-performance document extraction libraries written in Rust.
- unpdf - PDF extraction to Markdown/JSON with CJK/RTL support, multi-column layout detection, and Python/.NET/CLI bindings
- undoc - Extract DOCX, XLSX, and PPTX into Markdown, plain text, or JSON with CJK support and .NET/Python bindings
- unhwp - Convert Korean HWP/HWPX documents to Markdown, plain text, and JSON with streaming API and .NET/Python bindings
- pageseer - Rasterize PDF, Office, and HWP/HWPX documents into per-page PNG/JPEG images via a unified pipeline
Domain-agnostic optimization and analytics libraries for manufacturing and logistics.
- u-numflow — Foundational mathematical, statistical, and probabilistic primitives with no external dependencies
- u-metaheur — Metaheuristic framework — GA, BRKGA, Simulated Annealing, ALNS, and Constraint Programming with trait-based domain separation
- u-geometry — 2D/3D geometric primitives, polygon operations, collision detection, Minkowski sums, and spatial indexing
- u-analytics — SPC control charts, process capability indices, Weibull reliability, change detection, and hypothesis testing
- u-insight — Statistical analysis engine with C FFI, C#, and WASM bindings — clustering, anomaly detection, PCA, regression, and data profiling
- u-schedule — Job-shop scheduling framework combining dispatching rules, genetic algorithms, and constraint programming
- u-nesting — 2D polygon nesting and 3D bin packing using GA, SA, and ALNS with No-Fit Polygon collision detection
- u-routing — Vehicle routing optimization (TSP, CVRP, VRPTW) with multiple solvers and WASM/npm support
- u-doe — Statistical Design of Experiments — factorial/RSM/Taguchi designs, ANOVA, power analysis, and multi-response optimization
- formulab — 174 research-backed industrial engineering formulas across 14 domains with zero dependencies (TypeScript)
Machine learning tooling and data management.
- MLoop - ML.NET CLI tool for automated model training with AutoML, dynamic scripting, and 15 task types from tabular classification to deep learning
- DataLens - Exploratory data analysis library — profiles datasets with clustering, outlier detection, PCA, correlation, and changepoint detection
- MorphDB - Runtime-flexible PostgreSQL service with dynamic schema management, multi-protocol access (REST/GraphQL/OData), and multi-tenant support
- FilePrepper - Data preprocessing library and CLI — 30 transformation tasks with 67–90% I/O reduction via pipeline chaining
- DocuChef - Template-driven document generation for Excel, PowerPoint, and Word with variable binding, collections, and custom functions
Web components and UI libraries.
- formdown - Markdown-like syntax for building interactive HTML forms — framework-agnostic web components with real-time validation (formdown.dev)
- u-widgets - Declarative, data-driven web component library for data visualization — charts, KPIs, gauges, and tables with AI/MCP integration
- flex-table - Schema-agnostic data grid web component — virtual scrolling for 100k+ rows, inline editing, and Excel-compatible clipboard
- canvas-kit - Framework-neutral canvas library for visual editing — drag/resize/rotate, undo/redo, Konva.js designer, and lightweight HTML viewer
- Declart - Prose-first diagram library — declare structure in TOML/JSON, get publication-ready SVG output via Rust/WASM engine with VS Code live preview
General-purpose libraries and utilities for developers across languages.
- oops - Single-file version control tool — snapshot, diff, and restore any file without Git, powered by an embedded go-git library
- DollarSignEngine - Runtime C# expression evaluator powered by Roslyn — dynamic string interpolation, LINQ support, and expression caching
- FunctionX - Excel-compatible formula engine — 38 built-in functions, Roslyn-powered compilation, and sandboxed async execution
- http-test - API testing library that executes .http files with OAuth2, JSONPath assertions, JSON Schema validation, and concurrent test runs
- FastFind.NET - Ultra-high performance file search — SIMD-optimized matching, direct NTFS MFT access, SQLite FTS5 indexing, and real-time monitoring
- WebLookup - Lightweight URL discovery library — concurrent multi-provider web search (DuckDuckGo, Google, Tavily) with sitemap/robots.txt exploration
- ChildProcessGuard - Cross-platform library guaranteeing child process termination when the parent exits — Windows Job Objects, Linux /proc, macOS native APIs
- system-harness - Unified computer-control library — shell execution, screen capture, OCR, input simulation, UI automation, and MCP server with 163 commands
- FlexiPane.WPF - Dynamic resizable and dockable pane management for WPF — interactive split overlays, nested layouts, and layout serialization
- TextDiff - C# library for parsing and applying unified diffs — sync/async/streaming APIs, DiffX multi-file format, and LLM-generated diff tolerance
- vs-tools - Visual Studio extension utilities — copy folder trees, extract text from selected files, and streamline clipboard operations on project items
- ObjectPath - .NET library for retrieving values from objects using string path expressions — dot notation, bracket indexing, and reflection caching
- m3l - Markdown-based data modeling language — define schemas in plain Markdown, parsed into AST with models, enums, interfaces, inheritance, and multi-file imports
- shell-tunnel - Single-binary tool exposing remote terminal access via REST and WebSocket API with cross-platform PTY support and API key authentication
- Authway - Standards-compliant OAuth 2.0 / OIDC platform built on Ory Hydra — multi-tenancy, PKCE, passwordless flows, TypeScript SDKs for vanilla JS, React, and Next.js
- OrbitMesh - .NET infrastructure SDK for distributed systems — abstracts WebSocket connectivity, message reliability, job orchestration, and state synchronization via SignalR
- system-coroner - Automated server intrusion forensics — collects evidence via PowerShell/Bash, applies Sigma rules, and generates LLM-powered HTML reports with MITRE ATT&CK mapping
We welcome community contributions! Feel free to open issues, submit PRs, or join our discussions.
- 📚 Check out our documentation
- 💬 Join discussions for questions and ideas
- 🔗 Visit our website: iyulab.com