Everything in the catalog

Turn a short text script of messages between participants into a sequence diagram.

Real-time shareable whiteboard that opens instantly without sign-up or installation.

Generates shaped, colored word clouds from pasted text or uploaded files; no registration.

Paste text to produce a customizable word cloud with adjustable fonts and colors.

Plots a JSON document as a physics-style graph where each node is an object, array or value, rendered locally.

Draws an ER diagram from SQL CREATE TABLE statements.

Charts exchange rate history for currency pairs.

Enter comma-separated values to make a bar, line, pie, dot plot or histogram to print or save.

Plots surfaces z = f(x, y) you can rotate.

Graphs equations in x and y, including implicit curves.

Shows how adding sine terms builds up a Fourier series.

Shades the region that satisfies one or more inequalities.

Drag a line on a graph to see its slope and equation change.