FlexViz keeps 100M+ row charts interactive with lazy Polars aggregations and Rust kernels
JeremyCMorgan · x · 2026-09-26
FlexViz is an Apache 2.0 Python visualization library for datasets too big for conventional dashboarding tools:
- Charts stay interactive (zoom, pan, cross-filter) at 100M+ rows because every interaction is answered by lazy Polars aggregations and Rust kernels — no raw data ships to the browser.
- Stateless server; the same engine serves a coding agent: it builds the dashboard, hands you a URL, and reads back what you zoomed and brushed for collaborative data exploration.
- Available on PyPI with a live demo, public benchmarks, and Claude/Codex plugin support. Early-stage with 46 stars.
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