Zilla Slab
Commissioned by Mozilla and designed by Peter Bilak and Nikola Djurek of Typotheque, Zilla Slab is a contemporary slab serif built with smooth curves and true italics that convey both industrial sophistication and friendly approachability. It serves as Mozilla's core brand typeface and works exceptionally well for tech companies, open-source projects, and editorial headlines that need authoritative yet accessible typography. Available in multiple weights with a companion Highlight variant, it brings a distinctive identity rooted in the open web movement.
The quick brown fox jumps over the lazy dog
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About Zilla Slab
- Designer
- Peter Bilak, Nikola Djurek
- Foundry
- Typotheque / Mozilla
- Released
- 2017
- License
- SIL Open Font License 1.1
- Category
- Slab Serif
- Recommended Weight
- 700
- Script Support
- Latin
- Available Weights
- 300400500600700
Who Uses Zilla Slab
Mozilla (Core brand typeface).
Pairs Well With
Open Sans
Open Sans provides a clean, versatile body text companion that lets Zilla Slab's distinctive slab serifs command attention in headings without visual conflict.
Compare side by sideInter
Inter's neutral, screen-optimized design pairs well with Zilla Slab's industrial character, creating a modern tech-forward typographic system.
Compare side by sideWork Sans
Work Sans shares a similar understated professionalism, allowing Zilla Slab to add serif structure to headings while Work Sans handles interface text and body copy.
Compare side by sideSimilar Fonts
Frequently Asked Questions
Why did Mozilla commission Zilla Slab as their brand typeface?
Mozilla wanted a distinctive, open-source typeface that embodied the organization's values of openness and accessibility. Zilla Slab was designed to replace their previous use of proprietary fonts, giving Mozilla a unique typographic identity while staying true to their commitment to free and open-source software.
What is the Zilla Slab Highlight variant?
Zilla Slab Highlight is a companion display variant featuring inline stripes cut through the letterforms, creating a decorative, attention-grabbing effect for large headlines and promotional materials. It is designed for use at display sizes only and should not be used for body text.
Does Zilla Slab include true italics or sloped romans?
Zilla Slab features true italics with distinctly redrawn letterforms rather than simple oblique or sloped roman variants. This gives the italic styles their own character and elegance, reflecting the high-quality craftsmanship of designers Peter Bilak and Nikola Djurek at Typotheque.