Viskoa

Viskoa is a lightweight, open-source JavaScript library designed to facilitate the development of data visualization dashboards and interactive charts for web applications. It provides a modular set of visualization components, a streaming data API, and integrations with popular front-end frameworks. The design emphasizes performance, accessibility, and ease of integration.

Architecture and features: Viskoa uses a plugin-based architecture that lets developers compose charts, layouts, and interactions from reusable blocks. It supports rendering backends for Canvas and WebGL, data adapters for various sources, and a declarative API for defining visualizations. The library includes core chart primitives (line, bar, scatter, heatmap), dashboards, and layout utilities, with theming and internationalization support. It also emphasizes accessibility, offering semantic markup and keyboard navigation options.

Data handling and interoperability: Viskoa is designed to ingest real-time data streams via observables or async iterables, enabling live dashboards. It provides adapters for common data formats and can work alongside frameworks such as React, Vue, or Svelte, either in component form or as a standalone rendering layer. A small set of developer tools helps with profiling and debugging.

Development and reception: Viskoa is maintained on a public repository by an international community of contributors. It is typically distributed under an open-source license and updated through regular releases. While it has a smaller ecosystem than some established visualization suites, advocates cite its modularity, streaming capabilities, and lightweight footprint as key strengths.