Reflex Open Sources XY: A Rust-Backed Super-Fast Python Charting Library That Keeps 100 Million Point Charts Interactive
Reflex open-sources XY: a Rust-WebGL charting library that renders 100M points in 0.08 seconds without losing interactivity.
Why it matters
A practitioner building data-dense applications gets a new option for real-time visualization at scale — early alpha, but the Rust+WebGL architecture solves a hard problem in the Python analytics stack.
The key facts
13 to knowReflex releases XY charting library (Apache 2.0, open source)
0.08 seconds render time across 10K to 100M data points
10-million-point interactive scatter exports at 258 KiB
Preserves native f64 precision in Python; hover/zoom/select returns original rows
Native Rust core + WebGL2 client architecture
Version 0.0.1 (early alpha)
MarkTechPost publication date: August 4, 2026
Apache 2.0 open-source Python library by Reflex
Rust core + WebGL2 client architecture
0.08 seconds render time across 10K–100M data points
10M-point scatter plot exports at 258 KiB
Preserves f64 precision in Python for drill-down queries
Hover, selection, zoom retain original row data
Go to the source
MarkTechPostmarktechpost.com
Publisher excerpt: Reflex has released XY, an Apache-2.0 Python charting library that moves rendering work into a native Rust core and a WebGL2 client. It holds roughly 0.08 seconds render time from 10,000 to 100 million points, exports a 10-million-point interactive scatter at 258 KiB, and keeps exact f64 columns in…