Release day: LightningChart JS 8.0 is out now

Omar Urbano — Wed, 06 Aug 2025 09:40:13 +0000

Hello,

Here's a quick post about LightningChart JS's new release v.8.0.

What is LightningChart JS?

LightningChart JS is a data visualization library for building high-end JavaScript charting applications in complex scenarios that demand processing data at high performance.

Introducing LightningChart JS 8.0

In LightningChart JS 8.0, we focus on developing new features, and adding visual quality, performance, and developer experience improvements. You can read the full release note or check out the most important here:

Completely reworked legends
This update improves chart appearance by making legends adapt to available space and simplifies configuration with a more powerful API.

New features include:

Legends are now moved away from obstructing the visualizations and adapt to the available space.
New legends now appear automatically below trends.
You can manually create multiple legends.
An easier-to-learn and use API configuration.
More use cases with built-in functionalities.
Adding plugin support for the custom legend functionality.
Legends support built-in or custom position options.
You can define legend click behavior using built-in or custom options.
It's possible to exclude specific series from legends when creating them.

Cursor point marker changes

This version introduces Cursor point marker changes. We have changed the default style for the cursor point marker to a transparent circle which improves how the data value is highlighted.

Improved Cursor Fitting for Small Charts

Cursor fitting has been improved for use cases with small charts. We’ve added more built-in logic to prevent situations where cursor content is not visible due to little available space.

DataSetXY Rework

This version introduces several performance improvements that can be accessed by using the DataSetXY functionalities:

Shared timestamps can reduce chart memory consumption by up to 2x.
Separate data storage format configurations can further decrease memory consumption if some measurements do not require full 64-bit precision.
Data mapping can massively speed up switching displayed channels and improve memory efficiency.

Outstanding Performance Results

We conducted a performance gain test on the Multi-Channel EEG chart example, and in a multi-channel EEG shared timestamp test case, we successfully loaded data sets 8 times larger than before.

In this test, we reached an incredible 8,000,000,000 data points. This is an unprecedented achievement in web data visualization.

Beyond the previously mentioned improvements, v8 also delivers additional out-of-the-box performance enhancements:

Real-time streaming line series CPU usage has been reduced by approximately 63%.
Real-time streaming scatter series CPU usage has been reduced by approximately 245%.

Get access to LightningChart JS 8.0

LC JS 8.0 introduces several improvements for a better development and user experience.

Read the full release note

Announcing Dashtera: a revolutionary dashboarding platform

Omar Urbano — Wed, 23 Jul 2025 10:22:38 +0000

Hello! I'm Omar, and this time I bring you good news about LightningChart's latest product release: Dashtera.

Introducing the Dashtera Beta platform

Dashtera is the next-generation web platform for building high-performance, real-time dashboards, now launched in beta. Dashtera has been built on cutting-edge LightningChart technology, empowering users to explore, analyze, and share data faster than ever before.

Whether you’re monitoring live data feeds or creating interactive reports, Dashtera delivers the speed, clarity, and flexibility needed to turn data into action, no code needed.

Dashtera’s benefits

Dashtera is designed for professionals in any industry who demand performance without compromising usability. Some of the Dashtera’s benefits include:

Ultra-high-performance dashboards with real-time updates and smooth UI interactions
Stunning visuals and color themes to help your data stand out and tell a clear story
Effortless data connections to SQL databases, real-time streams, or local files, and more
Industry-grade observability to visualize hundreds of data feeds with millisecond-level resolution
2D and 3D charting powered by WebGL technology and optimized for massive datasets
Secure dashboard sharing with public or internal viewing modes

Multiple data sources and connectors

Dashtera can seamlessly connect to databases supporting PostgreSQL, MySQL, InfluxDB, MS SQL Server, MariaDB, and several more to come.

Dashboard Editor

An intuitive interface for building and customizing dashboards quickly.

Visualizations

Dashtera features a wide range of high-performance visualizations, including:

basic charts
XY Charts
Bar Charts
3D Charts
Polar Charts
Technical Analysis Charts
Statistics Charts
Maps

Dashtera also provides users with:

drill-down
drill-through
data filtering
grouping
aggregation
custom functions

Reporting and Sharing

PDF Reporting
Easily export dashboards to PDF format for streamlined sharing and documentation.

Sharing Options
Securely share dashboards within your team or make them publicly accessible for external audiences.

Get access to Dashtera Beta

Dashtera Beta is available for free, featuring all advanced features. Discover a new way of creating dashboards and visualizing your data.

Try Dashtera for free

DEV Community: LightningChart