#analytics #streaming #perspective #dataset #python #component #expression #visualization #well-suited

sys perspective-client

A data visualization and analytics component, especially well-suited for large and/or streaming datasets

31 stable releases

Uses new Rust 2024

new 3.7.2 Jul 9, 2025
3.7.1-alpha1 Jun 30, 2025
3.4.3 Mar 20, 2025
3.2.1 Dec 23, 2024
3.0.0-rc.1 Jul 27, 2024

#124 in WebSocket

Download history 241/week @ 2025-03-19 31/week @ 2025-03-26 31/week @ 2025-04-02 386/week @ 2025-04-09 41/week @ 2025-04-16 175/week @ 2025-04-23 168/week @ 2025-04-30 95/week @ 2025-05-07 58/week @ 2025-05-14 25/week @ 2025-05-21 17/week @ 2025-05-28 13/week @ 2025-06-04 48/week @ 2025-06-11 24/week @ 2025-06-18 263/week @ 2025-06-25 253/week @ 2025-07-02

589 downloads per month
Used in 5 crates

Apache-2.0

235KB
4K SLoC




Build Status npm PyPI crates.io


Perspective is an interactive analytics and data visualization component, which is especially well-suited for large and/or streaming datasets. Use it to create user-configurable reports, dashboards, notebooks and applications.

Features

  • A fast, memory efficient streaming query engine, written in C++ and compiled for WebAssembly, Python and Rust, with read/write/streaming for Apache Arrow, and a high-performance columnar expression language based on ExprTK.

  • A framework-agnostic User Interface packaged as a Custom Element, powered either in-browser via WebAssembly or virtually via WebSocket server (Python/Node/Rust).

  • A JupyterLab widget and Python client library, for interactive data analysis in a notebook, as well as scalable production applications.

Documentation

Examples

editablefilefractal
marketraycastingevictions
nypdstreamingcovid
webcammoviessuperstore
citibikeolympics

Media

@timkpaine @timbess @sc1f
@texodus @texodus

Dependencies

~3.5–8.5MB
~140K SLoC