IBM Plex Serif

Mike Abbink, Bold Monday · Serif · 14 styles · ✓ OFL

Download IBM Plex Serif

Size Tracking Ink Paper Click the specimen to type your own

The quick brown fox jumps over the lazy dog

Styles and weights

Thin 100 Pack my box with five dozen liquor jugs

ExtraLight 200 Pack my box with five dozen liquor jugs

Light 300 Pack my box with five dozen liquor jugs

Regular 400 Pack my box with five dozen liquor jugs

Medium 500 Pack my box with five dozen liquor jugs

SemiBold 600 Pack my box with five dozen liquor jugs

Bold 700 Pack my box with five dozen liquor jugs

Web preview shows the Regular cut. The download includes every listed weight plus italics.

Italic styles are included in the download for every weight.

Character set

ABCDEFGHIJKLMNOPQRSTUVWXYZ

abcdefghijklmnopqrstuvwxyz

0123456789

.,;:!?'"()[]{}<>@#$%&*+-=/\_

Subsets included: cyrillic, cyrillic-ext, latin, latin-ext, vietnamese

About IBM Plex Serif

IBM Plex Serif is a serif typeface designed by Mike Abbink, Bold Monday, published as an open-source font in 2018. It carries a composed, professional tone, which shapes where it works best. The family ships 14 styles.

Language support extends beyond basic Latin to cyrillic, cyrillic-ext, latin-ext, vietnamese. Because IBM Plex Serif is licensed under the SIL Open Font License 1.1, you can use it in commercial work without buying anything or crediting anyone in the design itself.

Licence

✓ IBM Plex Serif is free for commercial use

SIL Open Font License 1.1, verified by DaFontFonts

The SIL Open Font License is the most common open font licence. It permits use in any commercial or personal project, print, logos, websites, apps, products for sale, and allows modification and redistribution. The only real restrictions: you may not sell the font files by themselves, and if you modify the font you must rename it (if it uses a Reserved Font Name) and keep it under the OFL.

You can

Commercial use in any project, client work, products for sale, advertising
Logos and brand identities (including trademarked logos)
Web embedding (@font-face) and app embedding
Print: books, packaging, merchandise, print-on-demand
Modifying the font and redistributing modified versions (under the OFL, renamed if a Reserved Font Name applies)

Keep in mind

Selling the font files by themselves (bundling with software or designs is fine)
Modified versions must stay under the OFL and drop any Reserved Font Name

How we verify licences

Get the files

Desktop and print: The full family, 14 styles, from the official source. Download IBM Plex Serif
Web embedding: Self-host the woff2 for the fastest, most private setup.

@font-face { font-family: 'IBM Plex Serif'; src: url('ibm-plex-serif.woff2') format('woff2'); font-weight: 400; font-display: swap; }

Get woff2

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Questions

Is IBM Plex Serif free for commercial use?

Yes. IBM Plex Serif is licensed under the SIL Open Font License 1.1, which permits commercial use in client work, products for sale, advertising, web and app embedding. There are no royalties and no attribution requirement in your designs.

Can I use IBM Plex Serif in a logo?

Yes. The SIL Open Font License 1.1 allows logo use, including logos you register as trademarks. The licence covers the font software; your logo design remains entirely yours.

Do I need to credit Mike Abbink, Bold Monday when using IBM Plex Serif?

No. Attribution is not required in designs, websites, or products. The only rule that ever applies: if you redistribute the font files themselves, keep the licence file with them.

How many styles does IBM Plex Serif have?

IBM Plex Serif includes 14 styles: Thin, ExtraLight, Light, Regular, Medium, SemiBold, Bold, each with italics.

What languages does IBM Plex Serif support?

Character sets included: cyrillic, cyrillic-ext, latin, latin-ext, vietnamese. Check the character-set preview on this page before committing to a multilingual project.