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The second CMake 4.3 release candidate!

In a previous blog, I promised to cover modern ways of quickly developing user interfaces for prototyping. When I was a junior VTK developer, one of my favorite tools was this: This nameless application enabled the user to type VTK code in the text editor and immediately see the results in the render window on […]

We are pleased to announce the v35 release of VTK.js! VTK.js provides interactive visualizations running in your web browser for 2D, 3D, and higher-dimensional scientific data, including point clouds acquired as LiDAR data, surface models that represent molecular structures, and AR/VR environments that incorporate volume renderings of medical images.  It is freely available as open-source […]

Motivation: A unified framework for dMRI analysis Diffusion MRI (dMRI) is a powerful non-invasive technique that uses the diffusion of water molecules to reveal the microstructural complexity of biological tissues. By measuring how cellular structures, such as membranes and myelin, constrain water movement, dMRI probes brain anatomy at a micrometer scale. This has made it […]

Integrating trame into React applications.

Is this code familiar? How about this? If either of these are familiar to you, you are among a small group of a people who had the pleasure of programming using Tcl/Tk. The first example is from VTK 5.4 (vtkTkRenderWidgetDemo.tcl). We’ll discover where the second example is from later. I was recently writing a blog […]

In this first post of the VTK AI blog series we will explore the efforts of the VTK development team to make VTK more accessible, and to help new users understand the complex VTK API. This series is part of a larger effort to describe recent innovation efforts in the VTK project. Here is the introduction to […]

I joined Kitware in 2000. VTK was barely 7 years old. Even then, it supported development in C++, Java, Python, and Tcl. Most of developed in C++ and used Tcl/Tk for scripting and application development. In fact, did you know that ParaView’s GUI was Tk until ParaView 3 (released in 2007)? Anyway, that’s a story […]

We are thrilled to announce the release of VTK 9.6, which introduces a host of new features, including robust WebAssembly (WASM) enhancements, native ONNX support, significant performance optimizations, improved rendering capabilities, and numerous bug fixes. Let’s dive into some of the key highlights from this release: WebAssembly and Web Capabilities VTK 9.6 takes a giant […]

Demonstration of a simple CFD simulation workflow with trame.

The 44th NA-MIC Project Week took place January 26-30, 2026 in Las Palmas de Gran Canaria, Spain. This marked 21 years since the first Project Week was held in Salt Lake City in 2005, and the community continues to grow and evolve. This year’s event brought together researchers, developers, and clinical professionals from around the […]

3D Slicer is widely recognized as a powerful open source platform for medical image visualization and analysis. With millions of downloads across its core platform and extensions, it has become a foundational tool for researchers, engineers, and clinicians working across imaging domains.

Extend 3D Slicer rendering with the Layer Displayable Manager library.

Medical imaging researchers and product developers are continually seeking ways to streamline workflows, improve accuracy, and leverage the latest image-analysis tools. The recent release of 3D Slicer 5.10 delivers exactly that—offering new workflows, enhanced tools, and core upgrades that empower users to tackle complex imaging tasks more efficiently.

The 21st century has witnessed remarkable advances in computational and experimental sciences, with processing power expanding from terascale to exascale—a million-fold increase in capability—and experimental devices achieving unprecedented scales of data collection. Visualization technologies have kept pace, as modern GPUs now enable the analysis and rendering of complex datasets that were once out of reach. At the same time, artificial intelligence has disruptively reshaped research by not only augmenting existing methods but also transforming the problems we can address and the ways we solve them. Scientific and engineering work now depends on the integration of experiments, large-scale computation, and AI, involving diverse participants from domain experts to decision-makers. Yet, traditional tools such as documents, charts, spreadsheets, and static visualizations are no longer sufficient to support collaboration.

The 3D Slicer developer community is excited to announce the release of 3D Slicer 5.10, now available for download. This catch-up release represents a major step forward as the project prepares for the upcoming Slicer 6.0 milestone. Version 5.10 brings an extensive collection of improvements, bug fixes, infrastructure upgrades, and new capabilities across the platform, ensuring a stable, powerful foundation for both users and extension developers.

We are proud to announce that our RSNA 2025 educational exhibit “Creating Custom Applications Based on 3D Slicer” is now available for viewing at the On Demand RSNA platform, as well as in Kitware’s distribution channels.

We are pleased to announce the release of ITK 5.4.5! ITK 5.4.5 is maintenance release focused on critical bug fixes, improved documentation, and platform support, while introducing AI agent onboarding to assist in project maintenance tasks 🤖. This is the latest maintenance update for this cross-platform, open-source toolkit supporting N-dimensional scientific image analysis with spatially-aware algorithms. […]