Teachers

Free, private teachers that run entirely in your browser — no upload, no account. Pick a tool below; more land here as they ship.

Word Cloud Generator

Paste text → word cloud, download as PNG or SVG

How Word Cloud Generator works?

3D Surface Plotter

Plot z=f(x,y) as a rotatable 3D surface — free, no signup

How 3D Surface Plotter works?

Batch Sudoku Generator

Printable Sudoku puzzle books with answer keys

How Batch Sudoku Generator works?

Every tool runs in your browser — no upload, no account, free.