Sigilweaver is an open-source visual ETL tool and data pipeline builder that runs on your local machine or server. It allows you to create complex data workflows using a drag-and-drop interface powered by the blazing-fast Polars engine.

Yes, Sigilweaver is open-source software customized for data engineers and developers.

Does it support Python?

Yes, Sigilweaver is built on Python and allows for extensive customization with Python code. It uses Polars for high-performance data manipulation.

Visual Data Pipelines Powered by Python

Sigilweaver is the open-source visual ETL tool for modern data engineering. Build lightning-fast Polars workflows with a drag-and-drop interface.

Start Weaving See the Magic

Cross-Platform

Run your data pipelines anywhere - desktop, web browser, or headless server. Supports local execution and cloud deployment.

Polars Performance

Built on the Polars DataFrame library for blazing fast data processing. Python-first architecture with native extensibility.

Secure Processing

Enterprise-ready security with verbose logging and audit trails. Your data remains secure within your infrastructure.

Try the Magic Yourself

Experience the interface with our frontend-only interactive demo. See exactly how intuitive data pipeline creation can be.

Interactive Demo Available

Try the frontend demo environment with drag-and-drop workflow creation, node-based canvas interaction, and real-time XML generation. This is a UI-only preview showing the interface design and user experience.

Launch Frontend Demo

Engineered for Data Wizards

Frontend Magic

React + Vite + Electron

Modern, fast, runs anywhere

ReactFlow Canvas

Intuitive node-based design

Fully Decoupled

UI and backend can be hosted on different planets

Backend Power

Python Orchestrator

Converts visual workflows to real code

Polars Integration

Lightning-fast DataFrame operations

Python-Powered

Modern Python-first architecture, extensible design

Enterprise Features

Zero Vendor Lock-in

Export workflows as standalone code

Compliance Ready

File access logging, user auditing

Deploy Anywhere

On-device, on-prem, AWS, Azure - your choice!

Your Spellbook for Any Data Challenge

Data Engineers

Build production ETL pipelines visually

Analysts

Create complex transformations without coding

Enterprises

Maintain compliance while empowering users

Teams

Version control workflows like code (Git integration)

Free as in Freedom, Powerful as Magic

Open Source Principles

• FOSS with semi-permissive license
• No telemetry, no tracking
• No vendor lock-in
• Community-driven development

Get Involved

• Contribute code and ideas
• Report issues and bugs
• Share feature requests
• Help with documentation

View on GitHub

Begin Your Data Journey

Download

Get started with our desktop application or deploy on your own infrastructure.

Desktop App Web Deployment Guide

Documentation

Comprehensive guides and API reference to master your data weaving skills.

Getting Started Guide API Reference

Community

Join our community for support, discussions, and collaboration.

GitHub Discussions Community Forum