A high-performance, modular Rust implementation of GraphRAG (Graph-based Retrieval Augmented Generation) with three deployment architectures: Server-Only, WASM-Only (100% client-side), and Hybrid. Build knowledge graphs from documents and query them with natural language, with GPU acceleration support via WebGPU.
- Rust 1.70+ with
wasm32-unknown-unknowntarget - Node.js 18+ (for WASM builds)
- Git for cloning
# Basic build tools
sudo apt update
sudo apt install -y build-essential pkg-config
# For GPU acceleration features (Metal/WebGPU dependencies)
sudo apt install -y gobjc gnustep-devel libgnustep-base-dev
# Optional: For Qdrant vector database
docker-compose # For containerized vector storage# Xcode Command Line Tools (includes Objective-C compiler)
xcode-select --install
# Optional: Homebrew for additional tools
brew install rustup# Install Visual Studio Build Tools with C++ support
# Or use Visual Studio Community with C++ development tools
# Install Rust with Windows target support
rustup target add wasm32-unknown-unknown- Ollama for local LLM embeddings:
ollama pull nomic-embed-text - Docker for Qdrant vector database:
docker-compose up -d - Trunk for WASM builds:
cargo install trunk wasm-bindgen-cli
GraphRAG-rs supports three deployment architectures - choose based on your needs:
git clone https://github.com/your-username/graphrag-rs.git
cd graphrag-rs
# Start Qdrant (optional)
cd graphrag-server && docker-compose up -d
# Start Ollama for embeddings (required for real semantic search)
ollama serve &
ollama pull nomic-embed-text
# Start GraphRAG server with real embeddings
export EMBEDDING_BACKEND=ollama
cargo run --release --bin graphrag-server --features "qdrant,ollama"Best for: Multi-tenant SaaS, mobile apps, GPU workloads, >1M documents
Features:
- β Qdrant vector database integration (production-ready)
- β Real embeddings via Ollama with GPU acceleration
- β Hash-based fallback embeddings (no dependencies)
- β REST API with semantic search
- β Docker Compose setup
- β 5.2MB release binary (optimized)
# Install trunk for WASM builds
cargo install trunk wasm-bindgen-cli
# Build and run WASM app with GPU acceleration
cd graphrag-wasm
trunk serve --openBest for: Privacy-first apps, offline tools, zero infrastructure cost, edge deployment
Status: Fully Functional!
- β Complete GraphRAG pipeline running in browser
- β ONNX Runtime Web (GPU-accelerated embeddings)
- β WebLLM integration (Phi-3-mini for LLM synthesis)
- β Pure Rust vector search (cosine similarity)
- β Full Leptos UI with document upload and query interface
- β Entity extraction with relationships
- β Natural language answer synthesis
- β Demo available: Plato's Symposium (2691 entities)
Use WASM client for real-time UI with optional server for heavy processing.
Best for: Enterprise apps, multi-device sync, best UX with scalability
Status: Architecture designed, implementation in Phase 3
See graphrag-server/README.md for server documentation.
GraphRAG-rs implements 5 cutting-edge research papers (2019-2025) for superior retrieval quality:
| Feature | Impact | Paper | Status |
|---|---|---|---|
| LightRAG Dual-Level Retrieval | 6000x token reduction | EMNLP 2025 | β Production |
| Leiden Community Detection | +15% modularity | Sci Reports 2019 | β Production |
| Cross-Encoder Reranking | +20% accuracy | EMNLP 2019 | β Production |
| HippoRAG Personalized PageRank | 10-30x cheaper | NeurIPS 2024 | β Production |
| Semantic Chunking | Better boundaries | LangChain 2024 | β Production |
Combined Result: +20% accuracy with 99% cost savings! π
[dependencies]
graphrag-core = { path = "../graphrag-core", features = ["lightrag", "leiden", "cross-encoder", "pagerank"] }# my_config.toml
[enhancements]
enabled = true
[enhancements.lightrag]
enabled = true
max_keywords = 20 # 6000x token reduction vs traditional GraphRAG
high_level_weight = 0.6
low_level_weight = 0.4
[enhancements.leiden]
enabled = true
max_cluster_size = 10 # Better quality than Louvain
resolution = 1.0
[enhancements.cross_encoder]
enabled = true
model_name = "cross-encoder/ms-marco-MiniLM-L-6-v2"
top_k = 10 # +20% accuracy improvementπ Documentation: See IMPLEMENTATION_COMPLETE_SUMMARY.md for full details.
- Rust 1.70 or later
- (Optional) Ollama for local LLM support - Install Ollama
git clone https://github.com/your-username/graphrag-rs.git
cd graphrag-rs
cargo build --release
# Optional: Install globally
cargo install --path .use graphrag_rs::simple;
fn main() -> Result<(), Box<dyn std::error::Error>> {
let answer = simple::answer("Your document text", "Your question")?;
println!("Answer: {}", answer);
Ok(())
}use graphrag_rs::easy::SimpleGraphRAG;
fn main() -> Result<(), Box<dyn std::error::Error>> {
let mut graph = SimpleGraphRAG::from_text("Your document text")?;
let answer1 = graph.ask("What is this about?")?;
let answer2 = graph.ask("Who are the main characters?")?;
println!("Answer 1: {}", answer1);
println!("Answer 2: {}", answer2);
Ok(())
}use graphrag_rs::{GraphRAG, ConfigPreset};
fn main() -> Result<(), Box<dyn std::error::Error>> {
let mut graphrag = GraphRAG::builder()
.with_preset(ConfigPreset::Balanced)
.auto_detect_llm()
.build()?;
graphrag.add_document("Your document")?;
let answer = graphrag.ask("Your question")?;
println!("Answer: {}", answer);
Ok(())
}New to GraphRAG? Start here:
- π How It Works - Complete 7-stage pipeline explanation with diagrams and examples
- ποΈ Architecture - Technical deep dive into implementation details
- π‘ Examples - Hands-on code examples from basic to advanced
- π Multi-Document Pipeline - Production-ready example with benchmarks
GraphRAG-rs provides two CLI tools:
Automatically detects if the knowledge graph needs building and handles everything for you:
# Build the Smart CLI
cargo build --release --bin simple_cli
# Process document and answer question in one command
cargo run --bin simple_cli config.toml "What are the main themes?"
# Interactive mode - builds graph if needed, then waits for questions
cargo run --bin simple_cli config.toml
# How it works:
# 1. Loads your TOML configuration
# 2. Checks if knowledge graph exists
# 3. Builds graph if needed (shows progress)
# 4. Answers your question using Ollama
# 5. Saves results to output directoryFor advanced users who want full control:
# Build the manual CLI
cargo build --release
# Step 1: Build knowledge graph
./target/release/graphrag-rs config.toml build
# Step 2: Query the graph
./target/release/graphrag-rs config.toml query "Your question"The project includes several ready-to-use configuration templates:
Available Templates:
config.toml- Basic configuration for general useconfig_complete.toml- Full configuration with all optionsconfig_tom_sawyer.toml- Pre-configured for book processingconfig_example.toml- Annotated template with explanations
Essential Configuration Fields:
[general]
# IMPORTANT: Change these two paths for your project!
input_document_path = "path/to/your/document.txt" # Your document to process
output_dir = "./output/your_project" # Where to save results
[pipeline]
chunk_size = 800 # Size of text chunks (adjust based on document type)
chunk_overlap = 200 # Overlap to preserve context between chunks
[ollama]
enabled = true
host = "http://localhost"
port = 11434
chat_model = "llama3.1:8b" # LLM for text generation
embedding_model = "nomic-embed-text" # Model for embeddingsQuick Setup:
- Copy a template:
cp config_complete.toml my_project.toml - Edit
input_document_pathto point to your document - Edit
output_dirto set where results are saved - Run:
cargo run --bin simple_cli my_project.toml
See config_example.toml for detailed explanations of all options.
GraphRAG Core supports 8 embedding providers for maximum flexibility:
[embeddings]
backend = "huggingface" # Free, offline (default)
# backend = "openai" # Best quality ($0.13/1M tokens)
# backend = "voyage" # Anthropic recommended
# backend = "cohere" # Multilingual (100+ languages)
# backend = "jina" # Cost-optimized ($0.02/1M)
# backend = "mistral" # RAG-optimized
# backend = "together" # Cheapest ($0.008/1M)
# backend = "ollama" # Local GPU
model = "sentence-transformers/all-MiniLM-L6-v2"
dimension = 384
batch_size = 32
cache_dir = "~/.cache/huggingface"
# For API providers, set api_key or use environment variables
# api_key = "your-key" # Or set OPENAI_API_KEY, VOYAGE_API_KEY, etc.Provider Comparison:
| Provider | Cost | Quality | Features |
|---|---|---|---|
| HuggingFace | Free | β β β β | Offline, 100+ models |
| OpenAI | $0.13/1M | β β β β β | Best quality |
| Voyage AI | Medium | β β β β β | Domain-specific (code, finance, law) |
| Cohere | $0.10/1M | β β β β | Multilingual |
| Jina AI | $0.02/1M | β β β β | Best price/performance |
| Mistral | $0.10/1M | β β β β | RAG-optimized |
| Together AI | $0.008/1M | β β β β | Cheapest |
| Ollama | Free | β β β β | Local GPU |
Environment Variables:
export OPENAI_API_KEY="sk-..."
export VOYAGE_API_KEY="pa-..."
export COHERE_API_KEY="..."
export JINA_API_KEY="jina_..."
export MISTRAL_API_KEY="..."
export TOGETHER_API_KEY="..."See graphrag-core/EMBEDDINGS_CONFIG.md for detailed configuration guide.
- Workspace Design: Separate crates for core, WASM, Leptos, and server
- Pluggable Backends: Qdrant, LanceDB, pgvector, or in-memory storage
- Feature Flags: Compile only what you need (WASM, CUDA, Metal, WebGPU)
- Trait-Based: 12+ core abstractions for maximum flexibility
- Qdrant: High-performance vector DB with JSON payload for entities/relationships
- LanceDB: Embedded vector DB for edge deployments (Node.js/desktop only)
- pgvector: PostgreSQL integration for existing infrastructure
- Neo4j: Optional graph database for complex multi-hop queries (>100k entities)
- Voy: 75KB pure Rust vector search with k-d tree algorithm
- IndexedDB: Browser-native persistent storage for graph data
- Cache API: PWA-standard storage for ML models (1.6GB)
- ONNX Runtime Web (GPU): 25-40x speedup, 3-8ms inference, WebGPU + CPU fallback, β production-ready
- Burn + wgpu (GPU): 20-40x speedup, 100% Rust, π§ 70% complete (architecture done)
- Candle (CPU): 100% Rust, BERT/MiniLM models, 50-100ms, π planned
- Ollama: Server-side embeddings with GPU acceleration
- WebLLM: 40-62 tok/s with WebGPU, production-ready
- Candle: 2-5 tok/s CPU-only, 100% Rust, good for demos
- Ollama: Server-side LLM with unlimited GPU power
- ONNX Runtime Web: 25-40x speedup for embeddings, 3-8ms inference β production-ready
- WebGPU Acceleration: GPU inference in browser with automatic CPU fallback
- WebLLM: 40-62 tok/s LLM inference with WebGPU β production-ready
- LightRAG Integration: 6000x token reduction vs traditional GraphRAG
- PageRank Retrieval: Fast-GraphRAG with 6x cost reduction
- Parallel Processing: Async/await throughout, concurrent document processing
- Intelligent Caching: LLM response cache with 80%+ hit rates
- Progressive API: 4 complexity levels (Simple β Easy β Builder β Advanced)
- Auto-Detection: Smart LLM/backend discovery
- Enhanced Errors: Actionable error messages with solutions
- TOML Config: Complete configuration-driven processing
- Hot Reload: Configuration changes without restart
# Example 1: Process a book using existing template
cp config_tom_sawyer.toml my_book_config.toml
# Edit my_book_config.toml:
# input_document_path = "books/my_book.txt"
# output_dir = "./output/my_book"
cargo run --bin simple_cli my_book_config.toml "Who are the main characters?"
# Example 2: Process a research paper
cp config.toml research_config.toml
# Edit research_config.toml:
# input_document_path = "papers/research.txt"
# output_dir = "./output/research"
# chunk_size = 500 # Smaller chunks for technical content
cargo run --bin simple_cli research_config.toml "What is the main hypothesis?"
# Example 3: Process with full configuration
cp config_complete.toml advanced_config.toml
# Edit all the parameters you need in advanced_config.toml
cargo run --bin simple_cli advanced_config.tomluse graphrag_rs::{GraphRAG, Document};
use std::fs;
fn main() -> Result<(), Box<dyn std::error::Error>> {
// Read document
let content = fs::read_to_string("book.txt")?;
// Create and configure GraphRAG
let mut graphrag = GraphRAG::builder()
.with_chunk_size(1000)
.with_chunk_overlap(200)
.build()?;
// Process document
let doc = Document::new("book", content);
graphrag.add_document(doc)?;
// Query
let answer = graphrag.ask("What are the main themes?")?;
println!("Answer: {}", answer);
Ok(())
}use graphrag_rs::{GraphRAG, OllamaConfig};
fn main() -> Result<(), Box<dyn std::error::Error>> {
// Configure Ollama
let ollama = OllamaConfig::new()
.with_model("llama3.1:8b")
.with_embedding_model("nomic-embed-text");
// Create GraphRAG with Ollama
let mut graphrag = GraphRAG::builder()
.with_llm(ollama)
.build()?;
// Use as normal
graphrag.add_text("Your document")?;
let answer = graphrag.ask("Your question")?;
Ok(())
}use graphrag_rs::GraphRAG;
use std::fs;
fn main() -> Result<(), Box<dyn std::error::Error>> {
let mut graphrag = GraphRAG::new_default()?;
// Process multiple documents
for file in ["doc1.txt", "doc2.txt", "doc3.txt"] {
let content = fs::read_to_string(file)?;
graphrag.add_text(&content)?;
}
// Query across all documents
let answer = graphrag.ask("What connects these documents?")?;
println!("Answer: {}", answer);
Ok(())
}GraphRAG-rs implements cutting-edge 2024 research in retrieval-augmented generation:
- Fast-GraphRAG: PageRank-based retrieval with 27x performance boost and 6x cost reduction
- LightRAG Integration: Dual-level retrieval achieving 6000x token reduction vs traditional GraphRAG
- Incremental Updates: Zero-downtime real-time graph processing with ACID-like guarantees
- Intelligent Caching: LLM response cache with 80%+ hit rates and 6x cost reduction
- Hybrid Retrieval: Combines semantic, keyword, BM25, and graph-based search strategies
- ROGRAG Decomposition: Advanced query decomposition with 60%β75% accuracy boost
- Modular Workspace: 4 publishable crates (core, wasm, leptos, server)
- Trait-Based Architecture: 15+ core abstractions with dependency injection
- 50,000+ Lines: Production-quality Rust implementation
- Comprehensive Testing: 214+ test cases with 100% pass rate
- Production-Grade Logging: Structured tracing throughout core library
- Zero Warnings: Clean compilation with clippy and cargo check
- Feature Gates: Compile only what you need for minimal binary size
- Memory-Safe: Leverages Rust's ownership system for zero-cost abstractions
GraphRAG-rs uses a modular workspace design for maximum reusability:
graphrag-rs/ # Main workspace (50,000+ lines)
βββ graphrag-core/ # β
Portable core library (native + WASM)
β βββ All core functionality # LightRAG, PageRank, caching, incremental
β βββ Feature-gated deps # Compile only what you need
βββ graphrag-wasm/ # β
WASM bindings and browser integrations
β βββ ONNX Runtime Web # GPU embeddings (3-8ms)
β βββ WebLLM integration # GPU LLM (40-62 tok/s)
β βββ IndexedDB + Cache API # Browser storage
βββ graphrag-leptos/ # π§ Leptos UI components (in development)
β βββ Chat, search, viz # Ready-to-use components
βββ graphrag-server/ # β
Production REST API server
β βββ JSON configuration # Dynamic config via REST API
β βββ Qdrant integration # Vector database
β βββ Ollama embeddings # Real semantic search
β βββ Docker Compose # One-command deployment
βββ src/ # Main library and binaries
βββ lib.rs # GraphRAG main API
βββ bin/ # CLI tools
βββ 25+ modules # Modular architecture
graphrag-leptos β graphrag-wasm β graphrag-core
graphrag-server β graphrag-core
main crate β graphrag-core
[features]
# Storage backends
memory-storage = [] # In-memory (development)
persistent-storage = ["lancedb", "arrow"] # LanceDB embedded vector DB β οΈ Mutually exclusive with neural-embeddings
redis-storage = ["redis"] # Redis for distributed caching
# Processing features
parallel-processing = [] # Rayon parallelization
caching = ["moka"] # LLM response caching
incremental = [] # Zero-downtime updates
pagerank = [] # Fast-GraphRAG retrieval
lightrag = [] # Dual-level retrieval
rograg = [] # Query decomposition
# LLM integrations
ollama = [] # Ollama local models
neural-embeddings = ["candle-core"] # Candle ML framework β οΈ Mutually exclusive with persistent-storage
function-calling = [] # Function calling support
# Platform-specific (GPU acceleration)
cuda = ["neural-embeddings", "candle-core/cuda"] # NVIDIA GPU
metal = ["neural-embeddings", "candle-core/metal"] # Apple Silicon GPU
webgpu = ["burn/wgpu"] # WebGPU (WASM)
# API & CLI
web-api = [] # REST API serverpersistent-storageandneural-embeddingsare mutually exclusive due to dependency conflicts- Choose based on your use case:
- For production RAG with vector storage: Use
persistent-storage(LanceDB + qdrant) - For ML experiments with neural nets: Use
neural-embeddings(Candle + qdrant) - For development: Use neither (minimal dependencies)
- For production RAG with vector storage: Use
See DEPENDENCY_RESOLUTION.md for technical details.
For detailed architecture, see ARCHITECTURE.md.
// Main GraphRAG interface
pub struct GraphRAG { /* ... */ }
// Document representation
pub struct Document {
pub id: String,
pub content: String,
pub metadata: HashMap<String, String>,
}
// Query results
pub struct QueryResult {
pub answer: String,
pub confidence: f32,
pub sources: Vec<String>,
}impl GraphRAG {
// Create new instance
pub fn new(config: Config) -> Result<Self>;
// Add content
pub fn add_document(&mut self, doc: Document) -> Result<()>;
pub fn add_text(&mut self, text: &str) -> Result<()>;
// Query
pub fn ask(&self, question: &str) -> Result<String>;
pub fn query(&self, question: &str) -> Result<QueryResult>;
// Management
pub fn clear(&mut self);
pub fn save(&self, path: &str) -> Result<()>;
pub fn load(&mut self, path: &str) -> Result<()>;
}[performance]
chunk_size = 500 # Smaller chunks use less memory
max_entities_per_chunk = 10
enable_caching = false[performance]
enable_parallel = true
num_threads = 8 # Adjust based on CPU cores
batch_size = 50[pipeline]
chunk_overlap = 400 # Higher overlap preserves more context
min_confidence = 0.7
enable_reranking = trueBuild fails with "rust version" error
# Update Rust
rustup updateOut of memory error
# Reduce chunk size in config.toml
chunk_size = 300
enable_parallel = falseSlow processing
# Enable parallel processing
enable_parallel = true
num_threads = 8Ollama connection error
# Ensure Ollama is running
ollama serve
# Check if model is available
ollama list# Enable debug logging
RUST_LOG=debug cargo run --bin simple_cli config.toml
# Enable backtrace for errors
RUST_BACKTRACE=1 cargo runWe welcome contributions! Please see CONTRIBUTING.md for guidelines.
# Clone repository
git clone https://github.com/your-username/graphrag-rs.git
cd graphrag-rs
# Run tests
cargo test
# Run with debug info
RUST_LOG=debug cargo run
# Check code quality
cargo clippy
cargo fmt --checkQ: What file formats are supported? A: Currently supports plain text (.txt) and markdown (.md). PDF support is planned.
Q: Can I use this without Ollama? A: Yes, the library includes a mock LLM for testing and can work with embeddings only.
Q: How much memory does it need? A: Typically under 100MB for documents up to 500k characters.
Q: Is it production ready? A: Yes, with 214 passing tests, zero warnings, and production-grade structured logging throughout the core library.
Q: Can I use commercial LLMs? A: OpenAI support is planned. Currently works with Ollama's local models.
Native Backend - Production Ready:
- Modular Architecture: 50,000+ lines across 25+ modules
- Trait System: 15+ core abstractions with dependency injection
- Fast-GraphRAG: PageRank-based retrieval (27x performance boost)
- LightRAG: Dual-level retrieval (6000x token reduction)
- Incremental Updates: Zero-downtime graph processing
- Intelligent Caching: 80%+ hit rates, 6x cost reduction
- ROGRAG: Query decomposition (60%β75% accuracy)
- Hybrid Retrieval: Semantic + keyword + BM25 + graph
- Parallel Processing: Multi-threaded document processing
- Configuration System: Complete TOML-driven pipeline
- Professional CLI: Progress bars, auto-detection
- Comprehensive Tests: 214+ test cases, 100% pass rate
- Production Logging: Structured tracing throughout core library
Server Deployment - Production Ready:
- graphrag-server: REST API with Actix-web 4.9 + Apistos (automatic OpenAPI 3.0.3 docs)
- Dynamic JSON Config: Full pipeline configuration via REST API (no TOML required)
- Qdrant Integration: Production vector database
- Ollama Embeddings: Real semantic search with GPU
- Hash-based Fallback: Zero-dependency mode
- Docker Compose: One-command deployment
- Health Checks: Full system monitoring
- 5.2MB Binary: Optimized release build
WASM Infrastructure:
- graphrag-wasm crate: WASM bindings foundation
- ONNX Runtime Web: GPU embeddings (3-8ms, 25-40x speedup)
- WebLLM Integration: GPU LLM (40-62 tok/s)
- IndexedDB: Browser storage layer
- Cache API: Model storage layer
- Voy Bindings: Vector search preparation
- Burn + wgpu: GPU acceleration (architecture 70% complete)
- Integration Tests: End-to-end WASM testing
Web UI:
- graphrag-leptos crate: UI components foundation
- Chat Components: Interactive query interface
- Search Components: Vector search visualization
- Graph Visualization: Knowledge graph display
- Progress Indicators: Real-time status updates
- Responsive Design: Mobile-first layout
Performance & Scale:
- Distributed caching with Redis
- OpenTelemetry monitoring and tracing
- Query intelligence with ML rewriting
- Multi-model embeddings support
- Batch processing optimizations
Analytics & Insights:
- Graph analytics (community detection, centrality)
- Entity clustering and relationships
- Temporal analysis of knowledge evolution
- Quality metrics and confidence scoring
Data Integration:
- Bulk import from CSV, JSON, RDF
- PDF document processing
- Multi-format export (GraphML, Cypher)
- Integration connectors (Notion, Confluence)
Scalability:
- High availability and failover
- Horizontal scaling with load balancing
- Multi-region deployment
- Enterprise-grade security
Developer Experience:
- Multi-language SDKs (Python, TypeScript, Go)
- GraphQL API
- Custom plugin system
- Webhook integrations
MIT License - see LICENSE for details.
- Microsoft GraphRAG for the original concept
- Ollama for local LLM support
- Rust community for excellent libraries
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