Proto.io is an application prototyping platform launched in 2011, designed to prototype for anything with a screen interface, utilizing a drag and drop user interface (UI), not requiring coding.
45
Shortcuts
45
Matching
find
^
F
show keyboard shortcuts
^
K
save
^
S
close modal windows
⎋
preview
⇧
P
save and preview
⇧
^
S
undo
^
Z
redo
⇧
^
Z
go to previous canvas
^
[
go to next canvas
^
]
select all
^
A
cut
^
X
copy
^
C
paste
^
V
duplicate
^
D
delete
⌫
toggle grid
^
'
toggle grid system
^
\
toggle custom guides
^
;
toggle smart guides
^
L
toggle snap to grid on drag or resize
⎇
zoom in
^
+
zoom out
^
-
zoom to 100%
^
0
fit to screen
^
1
zoom to selected layers, or fit all layers if none selected
^
2
center selected layer(s) in the canvas, or center on screen if none selected
^
3
toggle right pane
^
→
toggle left pane
^
←
pan canvas while keydown / play or pause state transition
␣
bring to front
^
↑
send to back
^
↓
bring forward
⇧
^
↑
send backwards
⇧
^
↓
lock drag direction (hold while dragging)
⇧
insert rectangle
R
insert oval
O
insert line
L
insert text
T
insert interaction area
I
enter selected container
↵
group selected
^
G
ungroup selected
⇧
^
G
forward state transition
.
rewind state transition
,
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