Pulse.

Human writing has a pulse. Machine writing flatlines. Pulse charts every sentence as a bar so you can see the rhythm of a real writer, or the flat wall of a machine.

How it works

Pulse splits your text into sentences, measures the word count of each, and draws them as a row of bars. It then reads the variance between them, the same signal Typographer's readability pillar weighs hardest.

• Has a pulse — lively rhythm, short and long sentences trading off.
• Faint pulse — some variation, but the lines bunch around one length.
• Flatlining — a flat wall of same-length sentences, the rhythm machines fall into.

Reading the chart

Each bar is one sentence; its height is the word count. Short bars sit in blue, long ones in deeper orange, with a dashed line marking your average. A human page spikes and dips. A machine page holds one even line.