Make your life easier
withLeni Flux

Large and FAST data operations. Calculate anything, anywhere.

Minimize functions, solve (differential) equations and train neural networks (AI).

Spreadsheets.
But built for speed.

Process millions of values in seconds. Not minutes.

Vectorized operations. Functional transforms.

Performance preview

Think in vectors.
Not in cells.

Matrix operations. Broadcasting. Functional sub-operations.

Built for large-scale computation.

Matrix operations preview

Interactive plotting powered by Plotly.

Zoom. Pan. Explore results instantly.

Visualize large datasets directly from your sheet.

Interactive plotting preview

No installs.
No plugins.
Just compute.

Runs in your browser. Powered by Rust. Designed for performance.

About LeniFlux

LeniFlux is built for fast data handling and processing. It was created out of frustration with the modern-day slowness of available calculation tools. It always seems hard, to do something simple.

LeniFlux tries to bring the power of advanced math into the simplicity of a sheet environment. With LeniFlux you can solve differential equations and train neural networks, without needing to know how to write code.

Our Mission

At LeniFlux, we believe data processing should be both powerful and intuitive. LeniFlux is our vision for the next generation of spreadsheets. One where formulas, computation, and visualization flow with smoothness.

We combine the simplicity of classic spreadsheets with the intelligence of programmable data environments. Our goal is to empower creators, engineers, and researchers to explore ideas faster.

Ready to try it out?