Vega - Declarative format for creating, saving, and sharing visualization designs. (Code) Vega-Lite - High-level grammar of interactive graphics. Provides a concise JSON syntax for rapidly generating visualizations to support analysis. (Code) (HN) VegaGraphs - Implements graph visualization with Vega-Lite. react-vega - Convert Vega spec into React class conveniently. altair_recipes - Collection of ready-made statistical graphics for vega. XVega - C++ API to Vega-Lite. Draco - Formal framework for representing design knowledge about effective visualization design as a collection of constraints. Bl.ocks - Simple viewer for sharing code examples hosted on GitHub Gist. deck.gl - WebGL-powered framework for visual exploratory data analysis of large datasets. Flourish - Quickly turn your spreadsheets into stunning online charts, maps and interactive stories. SandDance - Visually explore, understand, and present your data. Bokeh - Interactive Data Visualization in the browser, from Python. Perspective - Streaming pivot visualization via WebAssembly. owid-grapher - Interactive data visualizations done quickly. HoloViz - High-level tools to simplify visualization in Python. Datashader - Graphics pipeline system for creating meaningful representations of large datasets quickly and flexibly. HiPlot - Lightweight interactive visualization tool to help AI researchers discover correlations and patterns in high-dimensional data. (Article) (HN) Vega-Embed - Makes it easy to embed interactive Vega and Vega-Lite views into web pages. Facette - Time series data visualization software. Our World in Data - Research and data to make progress against the world’s largest problems. PlotJuggler - QT5 based application to display time series in plots, using an intuitive "drag and drop" interface. (Web) (HN) BizCharts - Powerful data visualization library based on G2 and React. Vida - Software tool that reads JSON files and turns them into compelling dashboards. (Code) Muze - Free data visualization library to create Tableau-like charts in browser. e-sum - Visualization of exponential sums. (Code) Matplot++ - C++ Graphics Library for Data Visualization. Kyrix - Interactive details-on-demand data visualizations at scale. Dash Deck - Library for building 3D interactive maps and graphical visualizations directly in Dash. Apache ECharts - Powerful, interactive charting and data visualization library for browser. (Web) plotly.py - Interactive graphing library for Python (includes Plotly Express). Pandas Profiling - Create HTML profiling reports from pandas DataFrame objects. ImPlot - Immediate mode, GPU accelerated plotting library for Dear ImGui. Lux - Python API for Intelligent Visual Data Discovery. hvPlot - High-level plotting API for pandas, dask, xarray, and networkx built on HoloViews. (Docs) HoloViz - High-level tools to simplify visualization in Python. (GitHub) tikzplotlib - Convert matplotlib figures to TikZ/PGFplots for smooth integration into LaTeX. Chartify - Python library that makes it easy for data scientists to create charts. G6 - Graph Visualization Framework in TypeScript. Datashader - Quickly and accurately render even the largest data. (Docs) VisPy - Interactive scientific visualization in Python. (Web) ChartSeer - Visualization tool that helps analysts steer their exploratory visual analysis (EVA) through dynamic visualization and recommendation of charts. dygraphs - Interactive visualizations of time series using JavaScript and the HTML canvas tag. (Web) Raincloud Plots - Code and tutorials to visualise your data that is both beautiful and statistically valid.