FDTDX
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Output—per 1M tokens
Context—tokens
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About
FDTDX is ranked #12 of 91 in physics simulation software on Inferse. It runs on Linux.
Compared on physics simulation software
- Free plan
- Yesfdtdx.readthedocs.io
- Delivery mode
- desktopfdtdx.readthedocs.io
- Lesson library
- Nofdtdx.readthedocs.io
- Authoring tools
- Yesfdtdx.readthedocs.io
- Assessment tools
- Nofdtdx.readthedocs.io
- 3D visuals
- Yesfdtdx.readthedocs.io
- Data export
- Yesfdtdx.readthedocs.io
Facts
- Free plan
- Yesfdtdx.readthedocs.io · 23 Sept 2026
- Delivery mode
- desktopfdtdx.readthedocs.io · 23 Sept 2026
- Lesson library
- Nofdtdx.readthedocs.io · 23 Sept 2026
- Authoring tools
- Yesfdtdx.readthedocs.io · 23 Sept 2026
- Assessment tools
- Nofdtdx.readthedocs.io · 23 Sept 2026
- 3D visuals
- Yesfdtdx.readthedocs.io · 23 Sept 2026
- Data export
- Yesfdtdx.readthedocs.io · 23 Sept 2026
- Purpose
- FDTDX is an open-source Python package for simulating and designing three-dimensional photonic nanostructures with the finite-difference time-domain method.fdtdx.readthedocs.io · 3 Oct 2026
- JAX
- FDTDX is built on JAX and provides automatic differentiation for gradient-based optimization.fdtdx.readthedocs.io · 3 Oct 2026
- GPU support
- The project describes GPU-accelerated simulations with multi-GPU scaling capabilities.fdtdx.readthedocs.io · 3 Oct 2026
- Memory
- FDTDX uses time-reversibility in Maxwell’s equations for efficient gradient computation.fdtdx.readthedocs.io · 3 Oct 2026
- Scale
- The documentation says FDTDX can handle simulations with billions of grid cells.fdtdx.readthedocs.io · 3 Oct 2026
- API
- Its API supports positioning and sizing objects using absolute or relative coordinates.fdtdx.readthedocs.io · 3 Oct 2026
- License and cost
- FDTDX is freely available for research, development, and commercial use under the MIT license.github.com · 3 Oct 2026
- Installation
- The project documents installation with pip install fdtdx.fdtdx.readthedocs.io · 3 Oct 2026
- Accelerators
- The project recommends JAX GPU acceleration packages for NVIDIA GPUs, AMD GPUs, and TPUs.github.com · 3 Oct 2026
- Integrations
- The API includes functions for importing GDS polygons and working with GDS layer stacks and ports.fdtdx.readthedocs.io · 3 Oct 2026
- Documentation
- The project provides an API reference, tutorial guides, and best-practice documentation.github.com · 3 Oct 2026
- Support
- The repository provides community support through GitHub issues and discussions.github.com · 3 Oct 2026
- Security
- The repository page lists a Security and quality section but does not state a security certification or compliance standard.github.com · 3 Oct 2026
- Audience
- The project presents FDTDX for research, development, and commercial use in photonic nanostructure simulation and design.fdtdx.readthedocs.io · 3 Oct 2026
Best FDTDX alternatives
See all 12
8.7 OpenSim Free free plan, no paid price published Free plan
8.7 FeenoX Free free plan, no paid price published Free plan
8.4 COMSOL Multiphysics See plans price on the maker's page Free trial
7.5 SimScale See plans price on the maker's page 7.3 SimFlow €666.67/mo first paid tier Free plan
7.1 OpenFOAM See plans price on the maker's page Where it ranks on Inferse
Sources
- fdtdx.readthedocs.io/en/latest/· checked 23 Sept 2026
- github.com/ymahlau/fdtdx· checked 3 Oct 2026



