tools.j11y.io
small self-contained web toys by James Padolsey
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After Me
a patient singing examiner. It sings a short phrase; you sing it back; it marks the notes you hit, the intervals between them, and when you sang them.
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Fortissimo
a notepad that knows how hard you typed — every glyph sized by the violence of its keystroke, heard through the mic or felt through the accelerometer.
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Pen
draws what you meant, not what your mouse did. Trackpad scrawl in; de-jittered, Bézier-fitted calligraphy out.