Rhythm Heatmap

Paste a draft, then inspect sentence length, shape, sound, and variation across the piece.

View:
Window size:
Zoom:

Colors are based on word count: 0–10 (short), 11–20 (medium), 21+ (long).

Sentence view
short medium long
Abc Plosive / hard : (b, p, t, d, k, g, c) Abc Liquid / soft (l, r, s, m, n, w…)
and / but / or… Glue words (FANBOYS conjunctions)
Sentence length waveform

Region stats

Sentences in region
Total words
Mean length
Variety index
Shortest sentence
Longest sentence
Syllables / word
Texture cue

Click a sentence (in the body, shape view, or waveform). Stats use a window centered on that point. Variety index is higher when sentence lengths in the window are more varied (dynamic), lower when they’re similar (more monotone). Syllables per word trends: ~1.0–1.3 faster / punchier, ~1.4–1.7 middle, 1.8+ denser / slower.