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Free for Commercial Use

Slab Square Opti 6 is a light, wide, medium contrast, upright, normal x-height font.

Keywords: headlines, posters, logotypes, packaging, editorial display, industrial, technical, playful, modular, retro, graphic identity, modular styling, retro-tech voice, schematic look, square serif, monolinear, open counters, stencil-like, boxy.


Free for commercial use
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A crisp slab serif with very thin, even strokes and prominent square terminals that read like small blocks at stroke ends and junctions. Curves are drawn with a taut, geometric feel, while the slabs stay rigid and flat, creating a distinctive modular rhythm across words. Spacing and proportions feel intentionally irregular in a display-forward way, with some letters appearing narrower or wider by design, which adds a constructed, typewriter-meets-diagram character. Figures and punctuation share the same square-ended logic, maintaining a consistent, schematic texture in text.

Best suited for headlines and short-form display settings where its square-terminal slabs and constructed rhythm can be appreciated at size. It can work well for posters, logotypes, packaging, and editorial pull quotes that want a technical or retro-industrial flavor, but it may feel busy in long passages of small text.

The overall tone is technical and industrial, like lettering built from measured components, but it also feels playful due to the tiny block terminals and the slightly idiosyncratic, assembled look. It suggests retro-futurist signage, lab labeling, or an engineered aesthetic rather than traditional book typography.

This design appears intended to blend a light slab-serif skeleton with a modular, square-terminal motif, creating a distinctive voice that feels engineered and contemporary-retro. The goal seems to be strong graphic identity through consistent flat slabs and crisp geometry rather than conventional text neutrality.

The square terminals often behave like capped nodes, giving many letters a dotted, pinned-down appearance at extremities. Round forms (O, Q, C) stay clean and open, while straight-sided letters emphasize the font’s grid-like construction and create a lively alternation of rigid and curved shapes.

120px
108px
96px
84px
72px
64px
56px
48px
44px
40px
36px
32px
30px
28px
26px
24px
22px
20px
19px
18px
17px
16px
15px
14px
13px
12px
11px
10px
9px
8px
Letter — Basic Uppercase Latin
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Letter — Basic Lowercase Latin
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
Number — Decimal Digit
0
1
2
3
4
5
6
7
8
9
Letter — Extended Uppercase Latin
À
Á
Â
Ã
Ä
Å
Æ
Ç
È
É
Ê
Ë
Ì
Í
Î
Ï
Ñ
Ò
Ó
Ô
Õ
Ö
Ø
Ù
Ú
Û
Ü
Ý
Ć
Č
Đ
Ė
Ę
Ě
Ğ
Į
İ
Ľ
Ł
Ń
Ő
Œ
Ś
Ş
Š
Ū
Ű
Ų
Ŵ
Ŷ
Ÿ
Ź
Ž
Letter — Extended Lowercase Latin
ß
à
á
â
ã
ä
å
æ
ç
è
é
ê
ë
ì
í
î
ï
ñ
ò
ó
ô
õ
ö
ø
ù
ú
û
ü
ý
ÿ
ć
č
đ
ė
ę
ě
ğ
į
ı
ľ
ł
ń
ő
œ
ś
ş
š
ū
ű
ų
ŵ
ŷ
ź
ž
Letter — Superscript Latin
ª
º
Number — Superscript
¹
²
³
Number — Fraction
½
¼
¾
Punctuation
!
#
*
,
.
/
:
;
?
\
¡
·
¿
Punctuation — Quote
"
'
«
»
Punctuation — Parenthesis
(
)
[
]
{
}
Punctuation — Dash
-
_
Symbol
&
@
|
¦
§
©
®
°
Symbol — Currency
$
¢
£
¤
¥
Symbol — Math
%
+
<
=
>
~
¬
±
^
µ
×
÷
Diacritics
`
´
¯
¨
¸