Just six weeks after the release of SciChart.js v5.0, we have another minor update for you: SciChart.js v5.1.0.
In this release, we’ve built upon what we previously created and have added several minor features & improvements to the library.
Find out what’s new below!
1. SciChart.Blazor official Nuget Package now in Alpha
We’ve listened to user feedback and have created the first version of an official Blazor Nuget package for SciChart.js. This is now available on NuGet and is open to testing, user feedback.
We’ve managed to solve a major performance bottleneck in using JavaScript Charts in MS Blazor by developing an efficient Wasm-to-wasm bridge for sharing memory, avoiding the painfully slow serialization of Blazor memory to JSON for sharing to JavaScript chart libraries. The result: you can now plot millions of data-points in Blazor Charts using SciChart.Blazor!
The first version contains 2D charts only (3D coming soon!), and a selection of axis, annotations and interactivity modifiers. Try out the package and do give us your feedback.
We’ve added Pie/Donut chart rounded corners. Pie & Donut charts segments now support a configurable corner radius for a modern appearance.
3D Charts support Xyz Point Metadata API. XyzDataSeries3D now supports setMetadata() and setMetadataAt(), allowing per-point metadata to be updated and trigger chart invalidation correctly.
Native text (WebGL text) For modifier axis labels. When useNativeText is enabled, modifier axis labels (e.g. cursor/rollovermodifier) now render using the same native text path as axis labels, so font families match exactly.
3. Fixes & Improvements
Fixed Overview control with stacked series – Fixed an issue where stacked chart collections were not correctly mapped to the Overview chart control. (SCJS-2445)
DataPointSelectionModifier – Fixed drag-selection not including the last data point in the selection range. (SCJS-2412)
Canvas labels missing on first render – Fixed an issue where canvas-rendered axis labels did not appear on the initial render.
SubChart modifiers – Fixed chart modifiers on sub-charts not being updated after a layout complete event. (SCJS-2431)
Stacked series negative values – Fixed stacked column and mountain series not correctly accumulating negative values. Hit-testing and 100% stacked autorange are also corrected. (SCJS-1740)
Polar axis label positioning – Fixed polar axis labels overlapping at certain configurations, and fixed incorrect horizontal positioning of labels on vertical axes. (SCJS-2439)
Polar angular labels – Fixed the last angular label being omitted when the polar chart is rotated.
Mountain series clamping – Fixed forceClamp not being passed through correctly for mountain series, causing incorrect rendering near axis edges.
Tooltip positioning – Fixed tooltips being positioned incorrectly on the first render frame.
Duplicate destination IDs – Fixed an error when deleting a surface destination that shares an ID with another. (SCJS-2242)
Improved Axis renderer optimisations – Reduced redundant work during axis measurement and label rendering for improved frame throughput.
Improved Label cache pruning – Improved performance when using many charts simultaneously by refining how frequently the label cache is pruned, using a minAge threshold to avoid excessive pruning overhead.
Fixed Label cache memory leaks – Fixed multiple memory leaks relating to the label cache: canvas texture handles were not being released, and intermediate minMax calculation results were not disposed. (SCJS-2407)
Fixed PolarAxisRenderer memory leak – Fixed a memory leak in the polar axis renderer; the old renderer is now properly deleted when the axis type changes. (SCJS-2444)
4. What’s Coming Soon?
The SciChart team is incredibly busy at the moment and knocking out features at a rate of knots!
We have some exciting announcements to make soon, a selection of which / preview can be found below:
4.1. Composite Annotations, Drawing tools, Fibonacci Retracements and more
SciChart WPF has featured a CompositeAnnotation type (group of annotations) for many years, to enable more complex shapes such as measurement rulers, custom groups of annotations and even Fibonacci Retracements.
We’ve ported this to SciChart.js and will be releasing it soon, along with a library of built-in drawing tools for financial trading apps.
SciTrader is an open source library built on top of SciChart to allow financial charting capabilities in iOS / Android applications. We’re now in the process of porting this to JavaScript, using SciChart.js, however we’ll be adding some additional capabilities:
Add / remove technical indicators from a built-in library, or create your own
Add / remove user-drawn annotations, including complex shapes such as Fibonacci Retracements, Pitchforks, Free-drawing etc…
When this is ready, we’ll be publishing a new package and announcing a release to our userbase.
4.3. 3D Chart Selection & Hover
A recent feature request – enable selection & hover in 3D charts is being worked on as we speak. We’ve then upgraded the existing Interactive Waterfall Spectral Chart demo to use this new feature.
This will be released soon, as we’re still working on the feature. Watch a quick preview below:
4.4. 3D Engine Unification, WebGPU
A massive merge / unification of our C++ code across Windows, Mac, Linux, iOS/Android and Web browsers (via WebAssembly) is underway, and approximately 90% complete. This will bring to SciChart a single unified C++ engine codebase that can run on any platform (desktop, mobile, browser), any operating system (Windows, Linux, macOS, iOS/Android OS) and in all the SciChart products (WPF, iOS, Android, Js).
The benefit of this is – feature sharing – we’re now able to port in features from WPF to JS and vice versa quickly, plus bring advanced rendering with newer graphics APIs to the browser.
Part of this work has been updating the C++ engine to compile in WebAssembly not only to WebGL, but WebGPU (with WebGL fallback). This will bring about not only performance enhancements but previously impossible features, such as this amazing volumetric rendering of 3D MRI data you see below:
WebGPU offers a lot of enhancements over WebGL for rendering complex 3D scenes in JavaScript. It’s supported in all major browsers (Chrome, Safari, Firefox) post ~2023 and of course, we’ll ensure that when released, SciChart.js maintains it’s fallback to WebGL 2.
4.5. Official SciChart MCP Server for AI Coding
An official MCP server for SciChart is in the testing phase. Building on our popular in-house SciChart-GPT chat assistant, the MCP will be available to current customers of SciChart, and is designed to serve code samples, documentation & API info directly to your preferred AI coding tools, to enhance the AI coding experience.
Soon we’ll be publishing a Beta with instructions to integrate the scichart-mcp to Claude, Gemini, Cursor, Copilot and more.
SciChart MCP is coming soon! Integrate your AI coding tools (Cursor, Claude, Copilot) directly to the SciChart documentation, code examples and API definitions
In early testing, this greatly improves the output of AI coding tools by providing concrete API calls, best-practice guidance, live code examples and documentation from our website, reducing hallucinations and improving productivity of using AI tools.
SciChart is working hard to ensure that our documentation, demos, examples and tooling are ready for the AI coding age, and this enhancement will provide a big leap in productivity for our users.
Contact us to learn more
SciChart.js is a JavaScript Chart Library designed for complex, mission critical applications. Now with a FREE community edition. If you have a question or would like to learn more about our products & services, please contact us:
CEO / Founder of SciChart.
Masters (MEng) and PhD in Electronics & Signal Processing.Follow me on LinkedIn for more SciChart content, or twitter at @drandrewbt.
Queens Award for Innovation Proud winners of the Queens Award for Innovation, 2019. Awarded on account of our innovative graphics engine which underpins the SciChart library and enables our world-beating charting performance
National Business Awards Highly Commended for Lloyds National Business Awards, 2019. Awarded on account of our innovative graphics engine and impressive customer base
National Technology Awards Awarded “Healthcare Tech of the Year” at the 2025 National Technology Awards – a top UK recognition for breakthrough innovation in technology.
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