Charts.kt is pure Kotlin code, add charts to your Android projects with a powerful Kotlin DSL.

Enjoy a strongly typed charting library for your Kotlin/JS projects without performance compromises.

Build a complete JavaFX charting application and benefits from Charts.kt robust DSL to boost your productivity.

Write your code once and deploy your charts on any platform, they look, behave and react exactly the same!

• Straight line
• Spline
• Step line
• Continous / discrete
• Handle null values
• Multi-series
• ...

• Bars / columns
• Stacking available
• Custom bandwidth
• Floating bars
• Handle null values
• ...

• Straight / spline / step
• Overlapped or stacked
• Area range
• Handle null values
• ...

• Use any marker
• Easy customization
• Continous / discrete
• Multi-series
• ...

• Use any shape
• Easy customization
• Continous / discrete
• Multi-series
• ...

• Candle chart
• Box and whiskers
• Direct access to your values
• ...

Create combo charts by mixing any number of marks or use built-in charts like:

• Pareto
• SPC chart
• Density curve...

There's a ton of options to create your own chart: themes, inline style, decorators... you can even create your own chart by implementing Charts.kt interfaces.

Charts.kt automatically generate a tooltip based on the values and "smart formatters" but you can handle it yourself to display any information you need.

You have multiple cursor choices, by default, Charts.kt picks the best option to enhance your chart readability, but everything is configurable.

Legend is generated automatically, and you don't have to worry about its layout.

Still, everything is customizable.

Each chart uses by default the best configuration for a result that respects the standards:

• ISO-compliant formatters
• Colorblind-friendly palettes
• Smart UI choices for every chart
• Robust DSL
• Type checking
• ...

You can have multiple axes or you can use the same axis for multiple properties, you can even mix different axes types (temporal, numeric, discrete).

Need a logarithmic scale? A power scale? Or your own transformation scale?

Charts.kt accepts any scale that is based on the Data2Viz standard.

Enable "performance mode" to display thousands of records without sacrificing responsiveness.

Charts.kt goal is to display 100'000 records in less than a second on any platform.

Charts.kt provides a lot of locales and formatting options for numbers (scientific, percentage...) and dates (hour:minute, full date...).

Charts.kt DSL is 100% Kotlin code so you can very easily bind on events or control the chart from your application.

Zoom and pan with gestures or mouse depending on your platform.

Force X and/or Y zoom only, or fix value limits in chart's parameters.

Share events between multiple charts: each event contains all the information and data needed to synchronize it between charts.

Display data along multiple charts and synchronize their layouts to ensure that all axes are perfectly aligned.

Choose between multiple built-in themes (dark mode...) or create your own to change the look and feel of all your charts.

Use "utility marks" to draw on your chart: limit lines, trends... They share the same properties as your other marks.

Decorators are a very convenient way to customize your chart by drawing directly on it without having to care about screen coordinates.

Default color schemes offers high contrast.

Control your charts through gestures, mouse and keyboard.

"Smart layout" makes the most of the available size to maintain readability even when resizing.