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?

Basic Calculator

Four-function calculator: correct order of operations, free

How Basic Calculator works?

Batch Sudoku Generator

Printable Sudoku puzzle books with answer keys

How Batch Sudoku Generator works?

Handwriting Worksheet Generator

Turn any text into printable handwriting worksheets

How Handwriting Worksheet Generator works?

Centripetal Acceleration Calculator

Centripetal acceleration calculator: instant m/s² & g-force.

How Centripetal Acceleration Calculator works?

Bulk Coin Flipper

Flip a coin 100 times online — get the full sequence

How Bulk Coin Flipper works?

Countdown Clock

Countdown clock to any date — share it as a link

How Countdown Clock works?

Country Size Compare

Drag country outlines to compare their true size on a map

How Country Size Compare works?

Conversion Chart Maker

Any-unit conversion table, plus cups-to-grams for baking

How Conversion Chart Maker works?

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