Hamilton's UI – observability, lineage, and catalog for data pipelines
Hey HN – Stefan and Elijah here from DAGWorks (http://dagworks.io/, YC W23). If you don’t remember us from our previous HN launch (https://news.ycombinator.com/item?id=35056903), we’re the authors of Hamilton (https://github.com/dagworks-inc/hamilton), an open-source library for building self-documenting, modular dataflows in python that works for data, ML, LLM pipelines, & even web-workflows. We’ve been developing this UI for a while and we’re excited to say we open-sourced it! It comes out of the box with the following capabilities, and…
Hamilton's UI – observability, lineage, and catalog for data pipelines launched on May 2, 2024 with 40 votes, #692 of 4,539 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
Hamilton's UI is an open-source interface for Python data pipelines that provides observability, data lineage, and artifact cataloging. Built to work with Hamilton's modular dataflow library, it requires minimal code changes to enable automatic execution tracking, code profiling, data summary statistics, and lineage visualization. The tool is designed for data engineers and ML practitioners building data, machine learning, LLM, and web-based workflows in Python.
written from the facts on this page · September 2026
From the sources
Apache Hamilton helps data scientists and engineers define testable, modular, self-documenting dataflows, that encode lineage/tracing and metadata. Runs and scales everywhere python does. - hamilton/ui at main · apache/hamilton
In the maker’s words, at launch
Hey HN – Stefan and Elijah here from DAGWorks (http://dagworks.io/, YC W23). If you don’t remember us from our previous HN launch (https://news.ycombinator.com/item?id=35056903), we’re the authors of Hamilton (https://github.com/dagworks-inc/hamilton), an open-source…
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Source: Show HN post ↗ · launch text quoted in part
