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The Best Data Visualization Libraries Software in 2026

We researched data visualization libraries using information on vendors’ official websites, including pricing pages, plan tables, and product documentation. Rankings focus on the category’s core job, value for money, and verified features, so developers can compare libraries for building charts and other visual displays into software.

Our top picks

  1. Top ranked

    Plotly#1 of 24
    9.3/10

    A broad, open-source toolkit for interactive charts, maps, dashboards, and data apps.

    Free plan

  2. Runner-up

    Matplotlib#2 of 24
    9.1/10

    A free, mature Python plotting library for publication-quality charts and figures.

    Free plan

  3. Top-ranked free plan

    9.0/10

    A flexible, license-free JavaScript library for interactive charts in web applications.

    Free plan

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

The full ranking 24 tools, best first

24 tools
  1. Plotly

    Best forTeams needing versatile interactive charts and maps

    A broad, open-source toolkit for interactive charts, maps, dashboards, and data apps.

    9.3/10★★★★★
    Visit Plotly
  2. Best forPython users making publication-quality plots

    A free, mature Python plotting library for publication-quality charts and figures.

    9.1/10★★★★★
    Visit Matplotlib
  3. Best forFree, flexible JavaScript visualizations

    A flexible, license-free JavaScript library for interactive charts in web applications.

    9.0/10★★★★☆
    Visit Apache ECharts
  4. Seaborn

    Best forPython users exploring statistical data

    A free, open-source Python library for statistical plots, built on Matplotlib and pandas.

    8.9/10★★★★☆
    Visit Seaborn
  5. Best forFree charts across common frameworks

    A free, open-source JavaScript library for responsive charts and interactive updates.

    8.8/10★★★★☆
    Visit Frappe Charts
  6. Bokeh

    Best forPython developers building interactive web plots

    A free, open-source Python library for interactive plots, embedded visuals, and server-backed apps.

    Free plan Our Bokeh verdict → Visit Bokeh
    8.6/10★★★★☆
    Visit Bokeh
  7. Best forDevelopers building declarative web visualizations

    An open-source JSON grammar for building interactive web charts, maps, and multi-view displays.

    8.5/10★★★★☆
    Visit Vega
  8. Best forReal-time analytical grids, pivots and charts

    A developer library for real-time analytical views across browser, server and notebook workflows.

    7.9/10★★★★☆
    Visit Perspective
  9. Best forCollaborative notebook-based visualization work

    A notebook and publishing environment for collaborative, code-driven data visualization.

    7.8/10★★★★☆
    Visit Observable
  10. Best forPython users building declarative charts

    A free, open-source Python library for interactive, layered charts and notebook workflows.

    7.7/10★★★★☆
    Visit Vega-Altair
  11. Best forFree interactive charts embedded in web pages

    A free, web-focused charting library for developers embedding interactive visualizations.

    7.6/10★★★★☆
    Visit Google Charts
  12. D3.js

    Best forCustom web visualizations built by developers

    Flexible visualization building blocks for developers who want control over each graphic.

    Free plan Our D3.js verdict → Visit D3.js
    7.5/10★★★★☆
    Visit D3.js
  13. Chart.js

    Best forSimple, lightweight JavaScript charts

    A free, open-source choice for common web charts, with a focused set of built-in types.

    7.4/10★★★★☆
    Visit Chart.js
  14. AG Charts

    Best forTeams already using AG Grid

    A broad web charting library with a free MIT-licensed tier and paid Enterprise features.

    Free plan · 30-day trial Our AG Charts verdict → Visit AG Charts
    7.3/10★★★★☆
    Visit AG Charts
  15. Best forTeams building accessible interactive web charts

    Accessible web charting with many types and wrappers, but commercial licensing adds cost.

    7.2/10★★★★☆
    Visit ApexCharts
  16. amCharts

    Best forDevelopers building interactive web charts and maps

    A developer-focused charting library with broad visuals, exports, and license options.

    7.1/10★★★★☆
    Visit amCharts
  17. AnyChart

    Best forBuyers wanting many chart types and export options

    A chart-rich JavaScript library with extensive exports, integrations, and paid commercial licensing.

    7.0/10★★★★☆
    Visit AnyChart
  18. ZingChart

    Best forWeb apps needing real-time multi-chart dashboards

    A developer-focused charting library with real-time feeds and multi-chart dashboards.

    6.9/10★★★☆☆
    Visit ZingChart
  19. Best forSwiftUI developers charting Apple-platform data

    A free, native charting framework for SwiftUI apps on iOS and macOS.

    6.8/10★★★☆☆
    Explore Swift Charts
  20. Graphic

    Best forFlutter developers needing cross-platform charts

    A flexible, open-source Flutter library for interactive charts across six platforms.

    6.7/10★★★☆☆
    Visit Graphic
  21. dygraphs

    Best forWeb developers charting time-series data

    A focused, open-source library for interactive time-series line charts in web pages.

    6.6/10★★★☆☆
    Visit dygraphs
  22. Best forTeams focused specifically on interactive maps

    A focused mapping library with broad geographic formats, series, projections, and exports.

    6.5/10★★★☆☆
    Visit Highcharts
  23. VTK

    Best forScientific teams doing 3D and volume visualization

    A mature C++ toolkit for scientific 3D visualization, not ready-made business dashboards.

    Free plan Our VTK verdict → Visit VTK
    6.4/10★★★☆☆
    Visit VTK
  24. Best forEnterprises needing maps and many chart types

    A broad charting library for teams that need maps, dashboards and multiple deployment options.

    6.2/10★★★☆☆
    Visit FusionCharts

No tools match those filters.

Compare at a glance

#ToolFree planPaid fromScore
1PlotlyYes$290/seat/yr9.3
2MatplotlibYesFree9.1
3Apache EChartsYesFree9.0
4SeabornYesFree8.9
5Frappe ChartsYesFree8.8
6BokehYesFree8.6
7Vega and Vega-LiteYesFree8.5
8PerspectiveYesFree7.9
9ObservableYes$22/user/mo7.8
10Vega-AltairYesFree7.7
11Google ChartsYesFree7.6
12D3.jsYesFree7.5
13Chart.jsFree7.4
14AG ChartsYes$499/user one-time7.3
15ApexChartsYes$199/user/yr7.2
16amChartsYes$80/seat/yr7.1
17AnyChartNo$499/yr7.0
18ZingChartYes6.9
19Swift ChartsYesFree6.8
20GraphicYesFree6.7
21dygraphsYesFree6.6
22Highcharts MapsNo6.5
23VTKYesFree6.4
24FusionChartsNo$1,899/unit/yr6.2

Head-to-head All 27 comparisons →

Explore other topics All topics →

How we rank data visualization libraries software

Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update