Debug Duplex 3D Twin Rail Extrusion Font

a g R S & Aa

AI-generated

Monospace · 1 style · 148 characters · Version 0.1.0 · Published October 30, 2026

Debug Duplex 3D pairs upright sans serif capitals with narrow pale channels and attached black extrusion edges.

Based on: Debug Duplex

Personal use: with Pro, Studio, or as one of 5 Font Pass picks ($4.99 once)Commercial license from $15/mo, yours to keep after your plan endsSee plans

Download options

Aa

agRS&

Debug Duplex 3D148 characters · 1 style

Test

Test Debug Duplex 3D

Type the words you plan to use and adjust size, line height, and letter spacing. The preview uses the final font file.

The quick brown fox jumps over the lazy dog

Design

Twin Rail Extrusion Letterforms

Debug Duplex 3D pairs upright sans serif capitals with narrow pale channels and attached black extrusion edges. The E has long horizontal arms whose offset tips project slightly beyond the face, while its middle arm stays short. The O gathers curved contours around an open oval centre, with an extra arc sweeping over its upper right shoulder. The R combines a rounded bowl with a straight diagonal leg echoed by a neighbouring edge. Fairly even strokes and repeated verticals give the lettering an orderly rhythm, while the projecting curves introduce a mechanical, dimensional mood.

Test the font in your wording

Check repeated Latin capitals, round letters and punctuation in your actual wording, especially where narrow channels meet curved extrusion edges. Preview accented Latin characters separately; these specimens establish no appearance for other scripts, so inspect those with your intended font selection.

Font pairing roles

Try this face for a short heading, with a plain sans serif for supporting text and labels. Its repeated contours already supply substantial detail, so a companion with continuous strokes could give the surrounding information a quieter texture.

Debug Duplex 3D: letterforms and layout

Distinctive letterforms

O

The upright oval contains an inner curved stroke, while another arc sweeps above and around its right shoulder.

R

A rounded upper bowl sits above a straight diagonal leg; the offset edge adds a second descending line beside the leg.

E

Long top and bottom arms frame a shorter middle arm, with narrow pale channels and small projecting tips at the right.

Compare the layout

Same font, different settings
28px

HELLO WORLD?

64px

HELLO WORLD?

Compare smaller and larger previews, watching the narrow channels in E and the clustered curves around the question mark. The larger supplied specimen exposes the separated edges more clearly; check whether those details remain distinct at your intended scale.

Preview settings, not minimum size recommendations. Wide samples scroll sideways.

Choose your letterforms

Same wording · 40px
Debug Duplex 3D

HELLO WORLD?

Debug Duplex 3D stands upright, with pale channels running through the strokes and curved extrusion edges extending around O and D. Choose it when those repeated edges are part of the composition.

Code Oblique

HELLO WORLD?

Code Oblique leans right and uses solid strokes without the surrounding extrusion. Its O has a single outer silhouette, giving the same wording a more continuous, slanted texture.

Debug Duplex 3D font in use

  • SIGNAL LOST

    Poster. The attached extrusion and narrow internal channels give a short poster title a visibly layered, mechanical character.
  • ECHO CHAMBER

    Book or album cover. Repeated curves around the round capitals can become a graphic motif across a spare album or book cover.
  • HELLO WORLD

    T-shirt print. Upright capitals and projecting black edges give a simple shirt slogan detail without requiring additional decorative outlines.

The scenes are illustrations drawn on this page with Debug Duplex 3D itself, not client work.

How this page was made. Debug Duplex 3D is a FontGenerator library font made with AI; before release its letters were read back one by one by independent automated checks. The design notes were written by AI from the specimen images and checked against them by a second, independent pass; font measurements come from the font file. Preview sizes and spacing are comparison settings.

Specimens

Specimens

Rendered from the font files, without retouching.

  • Debug Duplex 3D cover specimen
  • Debug Duplex 3D pangram specimen
  • Debug Duplex 3D alphabet specimen
  • Debug Duplex 3D numbers specimen
  • Debug Duplex 3D waterfall specimen
  • Debug Duplex 3D sizes specimen
  • Debug Duplex 3D lowercase specimen

About

About Debug Duplex 3D

Its x-height is 71.4% of the cap height, near the 70.2% typical of monospace fonts in the library, taller than 15 of the 23 other monospace fonts. Ascenders on b, d, h, k and l line up with the capitals (100% of their height), and descenders on g, j, p, q and y drop 28.7% of the cap height below the baseline, shallower than 17 of the 23 other monospace fonts. Its letters are of average width for monospace fonts: an average lowercase letter, spacing included, is 85% as wide as the capitals are tall (an average capital, 85%), within 1.2% of the median. The o is close to a circle, 0.98 times as wide as it is tall, and every capital has the same width. Round letters overshoot: O rises 2.8% of the cap height above H and dips 1.6% below the baseline.

Ink covers 24.3% of each lowercase letter's box (its advance width by the cap height), darker than 14 of the 23 other monospace fonts. Each letter carries a solid 3D extrusion joined to its face.

Its 148 characters include 105 Latin letters, plus 43 figures, punctuation marks and symbols; 53 of the Latin letters are accented or special forms beyond A to Z. The word space measures 78.5% of the cap height, and the blank space either side of a lowercase letter takes up 26.7% of its width. The font carries no kerning, so spacing comes from each letter’s own side bearings. All ten figures share one width, so columns of numbers line up.

Debug Duplex 3D is Debug Duplex with the 3D effect applied to every letter. Debug Duplex 3D is drawn on the same letter structure as 4 other fonts in the library. Compared with Debug Duplex 3D, Code Oblique keeps the letters plain, without the 3D effect, puts down 18% more ink and adds Filipino, Hebrew, Malay and 2 more languages. Lambda Italic keeps the letters plain, without the 3D effect and adds Filipino, Hebrew, Malay and 2 more languages. Stack Duplex keeps the letters plain, without the 3D effect, sets 7% narrower and adds Afrikaans, Azerbaijani, Bosnian and 10 more languages.

Measured from the version 0.1.0 font file. Comparisons are with the 377 published library fonts measured on November 8, 2026, 24 of them monospace fonts.

Characters

Characters

Includes all 95 printable Basic Latin characters, 148 characters in total.

Verified language coverage: Afrikaans, Albanian, Basque, Catalan, Dutch, English, Filipino, Galician, Indonesian, Irish, Italian, Malay, Portuguese, Spanish, Swahili, Swedish, Zulu

Best for
3D designs

Basic Latin · 95

  • !
  • "
  • #
  • $
  • %
  • &
  • '
  • (
  • )
  • *
  • +
  • ,
  • -
  • .
  • /
  • 0
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • :
  • ;
  • <
  • =
  • >
  • ?
  • @
  • 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
  • [
  • \
  • ]
  • ^
  • _
  • `
  • 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
  • {
  • |
  • }
  • ~

Latin letters with accents · 105

  • ª
  • º
  • 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
  • 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
  • Ā
  • ā
  • Ă
  • ă
  • Ċ
  • ċ
  • Ē
  • ē
  • Ĕ
  • ĕ
  • Ġ
  • ġ
  • Ī
  • ī
  • Ĭ
  • ĭ
  • Ŀ
  • ŀ
  • Ō
  • ō
  • Ŏ
  • ŏ
  • Œ
  • œ
  • Ū
  • ū
  • Ŭ
  • ŭ
  • Ÿ
  • ɑ
  • Ḃ
  • ḃ
  • Ḋ
  • ḋ
  • Ḟ
  • ḟ
  • Ṁ
  • ṁ
  • Ṗ
  • ṗ
  • Ṡ
  • ṡ
  • Ṫ
  • ṫ
  • Ɑ

Download

Download

Choose the license that matches your project before downloading.

Download

This font is part of the Pro library: it downloads with Pro or Studio, or as one of the five picks of a Font Pass.

See plans or browse fonts that are free to download.

Commercial use

Client work, products and redistribution need a commercial license. Library fonts include it with Pro or Studio; fonts you make include it when you make them on Pro or Studio. A Font Pass is for personal projects.

TTF · OTF · WOFF · WOFF2

Read the full font license

Tools

Pairings

Fonts to pair with Debug Duplex 3D

A different structure keeps a pairing readable: set one font for headings and the other for text. Test both with your own words.

Similar

More monospace fonts

See all monospace fonts

More

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FAQ

Debug Duplex 3D questions

Can I use Debug Duplex 3D commercially?
Debug Duplex 3D is part of the Pro library. Pro and Studio include it with a commercial license that continues after the plan ends; a Font Pass can pick it as one of 5 fonts for personal use.
Which languages does Debug Duplex 3D support?
Debug Duplex 3D's 148 characters include 105 Latin letters, plus 43 figures, punctuation marks and symbols; 53 of the Latin letters are accented or special forms beyond A to Z. It has all 95 printable Basic Latin characters. Verified language coverage: Afrikaans, Albanian, Basque, Catalan, Dutch, English, Filipino, Galician, Indonesian, Irish, Italian, Malay, Portuguese, Spanish, Swahili, Swedish, Zulu. Missing a language? Customize the font and add it in Studio.
What is Debug Duplex 3D good for?
Poster: The attached extrusion and narrow internal channels give a short poster title a visibly layered, mechanical character. Book or album cover: Repeated curves around the round capitals can become a graphic motif across a spare album or book cover. T-shirt print: Upright capitals and projecting black edges give a simple shirt slogan detail without requiring additional decorative outlines. Less suited: For extended paragraphs or dense instructions, try a plain text face that gives each stroke a single continuous silhouette.
What fonts pair well with Debug Duplex 3D?
Chamfer Counter Sans (sans serif), Notch Terminal Sans (sans serif) and Ledger Slab (serif) are drawn on a different letter structure, so Debug Duplex 3D can carry the headings while one of them sets the text. Each has its own page with a type tester for trying the pair.
Which fonts are similar to Debug Duplex 3D?
In the same monospace style: Debug Duplex (plain letters, lighter strokes); Lambda Italic (plain letters); Telex Mono (plain letters, taller x-height).