Converts any image to Unicode braille-cell art, entirely in your browser --
the image never leaves your machine, nothing is uploaded anywhere. Grew out
of
a research log
on getting images to render inline in a terminal session, and reuses the
same 2x4-dot-per-character bit mapping as the
braille_chart() line-chart renderer in the portfolio terminal
app -- same encoding, just fed pixel brightness instead of chart values.
(load an image above to convert it)