Font family
IBM Plex Sans font
IBM Plex Sans is a humanist sans-serif designed by IBM as a corporate typeface. It has a neutral, technical character suited to documentation and enterprise UI.
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Uppercase
Lowercase
Digits
Punctuation
Click any glyph to copy it to your clipboard.
- 100Hamburgevons
- 200Hamburgevons
- 300Hamburgevons
- 400Hamburgevons
- 500Hamburgevons
- 600Hamburgevons
- 700Hamburgevons
Font Details
- Designer
- IBM
- Foundry
- IBM
- Source
- Google Fonts
- License
- OFL-1.1
- Category
- sans-serif
- X-height
- high
- Styles
- normal, italic
- Subsets
- latin, latin-ext, cyrillic, greek, vietnamese
- Weights
- 100, 200, 300, 400, 500, 600, 700
- Variable
- No
- Popularity
- 82/100
- Tags
- humanist, neutral, ui, corporate
Character and Use Cases
IBM Plex Sans , IBM Plex Sans is the corporate face of the IBM Plex superfamily, designed for IBM by Bold Monday and Mike Abbink. Its grotesque skeleton is tuned for technical, corporate, and editorial uses, and its tight, consistent letterforms read as engineered and serious.
The family is built for products that need to feel institutional and precise: enterprise software, documentation, financial tools, and developer portals. Seven weights with real italics cover the whole UI hierarchy, and the family's shared design language means a Plex Sans heading next to Plex Mono code keeps the product visually coherent.
Regular (400) and Medium (500) for body text and UI copy; SemiBold (600) for emphasized terms; Bold (700) for headings. The lighter weights at 100 to 300 are best at display sizes, where their delicacy reads as intentional.
Production Code
Copy-paste into your project. No build step required.
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=IBM%20Plex%20Sans:wght@100;200;300;400;500;600;700&display=swap" rel="stylesheet">Pairings using IBM Plex Sans
View allThe art of typography
Good typography is the visible voice of design, quiet when it should be, loud when it must.
PreviewLora + IBM Plex Sans
Lora headings over IBM Plex Sans body. A warm calligraphic serif meets a neutral technical sans, so titles carry character while body copy stays legible.
The art of typography
Good typography is the visible voice of design, quiet when it should be, loud when it must.
PreviewIBM Plex Sans + IBM Plex Serif
IBM Plex Sans headings over IBM Plex Serif body. A unified corporate family where sans and serif were drawn to sit on the same grid.
The art of typography
Good typography is the visible voice of design, quiet when it should be, loud when it must.
PreviewIBM Plex Mono + IBM Plex Sans
IBM Plex Mono headings over IBM Plex Sans body. A common pattern in developer docs where section titles are set in monospace and prose in a humanist sans.
The art of typography
Good typography is the visible voice of design, quiet when it should be, loud when it must.
PreviewIBM Plex Sans + Lora
IBM Plex Sans headings over Lora body. A neutral technical sans for section titles and a calligraphic serif for long-form prose. Used in product docs and editorial corporate sites.
The art of typography
Good typography is the visible voice of design, quiet when it should be, loud when it must.
PreviewFira Code + IBM Plex Sans
Fira Code headings over IBM Plex Sans body. A programming monospace with ligatures sets the section titles, and a humanist sans carries the prose. Useful for developer docs and API reference sites.
Frequently Asked Questions
- Why would I use IBM Plex over a more neutral sans?
- Plex adds a designed character that neutral faces lack, which helps a product feel branded without adding decoration. If your product is enterprise-grade, that engineering character works in your favor.
- Does IBM Plex support code and text in one family?
- The Plex superfamily includes sans, serif, and mono styles that share proportions, so code blocks, headings, and body text stay visually related across the product.
Test IBM Plex Sans in the playground
Drop IBM Plex Sans into the typography playground, mix it with another family, and check contrast on real text.