Pathway
FreePython ETL framework for stream processing, real-time analytics, LLM pipelines, and RAG.
FreeFree tier
About Pathway
Pathway is an open-source Python ETL framework for stream processing, real-time analytics, LLM pipelines, and RAG (Retrieval-Augmented Generation). It provides an easy-to-use Python API and is powered by a scalable Rust engine based on Differential Dataflow, enabling incremental computation, multithreading, multiprocessing, and distributed processing. The same code can be used for batch and streaming data, local development, CI/CD tests, and production deployments. Pathway includes dedicated LLM tooling with wrappers for common LLM services, a wide range of connectors, and supports deployment via Docker and Kubernetes.
Key Features
Easy-to-use Python API
Unified batch and streaming processing
Powered by a scalable Rust engine (Differential Dataflow) for incremental computation
Multithreading, multiprocessing, and distributed computations
Wide range of connectors
Dedicated LLM tooling with wrappers for common LLM services
Real-time analytics and event-driven pipelines
Supports Docker and Kubernetes deployment
Open source and free to use
Pros & Cons
Pros
- Seamless integration with Python ML libraries
- Same code for batch and streaming data
- Incremental computation reduces unnecessary recomputation
- Scalable via multithreading, multiprocessing, and distributed execution
- Comprehensive LLM tooling for RAG pipelines
- Active community and open-source with permissive license
Best For
Real-time ETL pipelinesEvent-driven pipelines with alertingReal-time analyticsAI/LLM pipeline processingRAG (Retrieval-Augmented Generation) applicationsUnstructured data to SQL conversionPrivate RAG with Ollama and Mistral AIAdaptive RAG
FAQ
What is Pathway?
Pathway is an open-source Python ETL framework for stream processing, real-time analytics, LLM pipelines, and RAG.
How do I install Pathway?
You can install Pathway using pip: pip install -U pathway
Is Pathway free to use?
Yes, Pathway is open-source and free to use under the provided license.
What are the main use cases for Pathway?
Pathway is used for real-time ETL, event-driven pipelines with alerting, real-time analytics, AI/LLM pipelines, and RAG applications.