Exact Geometry Engine

Exact Geometry.
Dynamic Theorems. User-defined Tools.

FluxGeo is a precision-first Euclidean geometry engine for exact constructions, triangle intelligence, user-defined macros, conics, transformations, and inversion — with deterministic interaction throughout.

Launch Web App Support the Project Watch Demo
Euclidean Construction Preview
> Triangle with circumcircle and Euler line...
Interactive Preview

Download

Portable desktop builds plus the instant web app for trying FluxGeo right away.

FluxGeo v1.3-beta

Latest beta
Triangle intelligence, macro/user-defined tools, enhanced conics & inversion support.
Windows

Windows

Native OpenGL build for Windows 10 and 11.

ZIP archive Download
Windows

Windows — Software OpenGL

Fallback for VMs and systems without reliable GPU drivers.

ZIP archive Download
Linux x86_64

Linux x86_64

Portable Linux build with the same exact desktop experience.

Extract and run the bundled launcher Download

FluxGeo v1.2-beta

Previous beta
Stable previous release with core geometry, transformations, and projective tools.
Windows

Windows

Recommended native OpenGL build for Windows 10 and 11.

ZIP archive Download
Windows

Windows — Software OpenGL

Fallback build for Sandbox, VMs, and systems without reliable GPU drivers.

Useful for OpenGL troubleshooting Download
Linux x86_64

Linux x86_64

Portable Linux build with the same exact desktop experience.

Extract and run the bundled launcher Download
Beta note: please report your OS, GPU or environment, the exact error message, and whether the web app works when sharing feedback.

Why FluxGeo Feels Different

Built for exactness, deterministic behavior, and high-quality interaction instead of approximation-first geometry tooling.

⚡

Exact Construction Core

Powered by CGAL exact constructions with deterministic semantics, so intersections and dependencies remain stable under editing and zoom. Supports conics, transformations, inversion, and projective operations.

🧭

Triangle Intelligence

Deep triangle toolkit: all centers, Euler line, nine-point circle, companion lines, and live semantic replay that reveals hidden geometric relationships as you construct.

🎯

Macro / User-defined Tools

Record and replay custom construction sequences as reusable tools. Full dependency-graph preservation, conic and transform support, and inversion-aware macro replay.

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