Paste text, choose a speed, listen
Works entirely in your browser. Adjust the rate from ultra-slow to 2x speed, and click any word during playback to jump straight to it.
0.02x
2x
0.30x
Below 0.1x, words are played individually with silence between them: your browser's speech engine cannot physically speak slower than 0.1x, so this is what makes the very slow end still get slower.