fatcousin
search
⌘
K
→
jump to any tool — keyboard-first launcher.
tools
→
browse every utility in one place.
manifesto
→
why fatcousin exists — local-first, no uploads.
install
→
save this toolset to your device — works offline.
search
⌘
K
→
jump to any tool — keyboard-first launcher.
←
home
g
c
d
a
s
r
e
c
t
a
n
g
l
e
s
u
b
t
r
a
c
t
i
o
n
fit the smaller bar inside the larger · last nonzero remainder = GCD · runs locally
⊞
a
252
b
105
GCD(252,105) = 21 · 252 = 2×105+42 → 105 = 2×42+21 → 42 = 2×21 · Euclidean algorithm: subtract smaller from larger until remainder is 0
ready
local
verify
→