Ciaren

Ciaren is an open-core visual workflow builder for local data pipelines and lightweight ML workflows. It solves the problem of building and maintaining data pipelines by allowing users to design pipelines visually, preview transformations on real data, and export clean Python code. It targets developers and data professionals in small to mid-sized teams who need a lightweight, local-first alternative to heavy orchestration tools. It is positioned as a local-first, open-source tool that exports plain Python, avoiding vendor lock-in and proprietary runtimes.

Key features

• Drag-and-drop visual pipeline builder
• Preview transformations on real data
• Export clean pandas or Polars code
• Switch between pandas and Polars engines
• Run pipelines on custom schedules
• Per-node status and row counts
• Built-in validation nodes
• Plugin architecture for custom nodes
• Local-first, no proprietary runtime
• Open source under AGPL-3.0