Can I use IBM Plex Sans in a logo?

Yes. A logo is a document made with the font, so the OFL places no restriction on it. Note that other people can use the same font, and trademark registration is a separate question the font license does not answer.

Can I bundle IBM Plex Sans in an app or game I sell?

Yes, with conditions. You may bundle and even sell the font inside software, as long as each copy includes the copyright notice and the OFL text (a license file or the font’s metadata).

Can I sell the IBM Plex Sans font file itself?

No. The font, modified or not, may not be sold by itself. You can sell things made with it, or software that includes it, but not the font file as the product.

Which scripts does IBM Plex Sans support?

On Google Fonts, IBM Plex Sans ships 6 subsets: Cyrillic, Cyrillic Extended, Greek, Latin, Latin Extended, Vietnamese.

Is IBM Plex Sans free for commercial use? Licence & pairings

What the OFL 1.1 lets you do with IBM Plex Sans

Verdicts are our plain-English reading of the SIL Open Font License 1.1; the right-hand column names the clause each one rests on. This is not legal advice.

IBM Plex Sans · SIL Open Font License 1.1
Use	Verdict	Basis
Use it on a website (self-hosted or via the Google Fonts API)Yes. Embedding is explicitly permitted. Self-hosted font files must keep the copyright notice and license; the OFL lets that live in the font file’s own metadata, which Google Fonts files already carry.	yes	Permission & Conditions: “use, study, copy, merge, embed, modify, redistribute”; condition 2 on including the notice and license.
Print, packaging, posters, PDFs and other documentsYes. Documents you create with the font are not covered by the OFL’s distribution conditions at all.	yes	Condition 5: “The requirement for fonts to remain under this license does not apply to any document created using the Font Software.”
Set a logo or wordmark in itYes. A logo is a document made with the font, so the OFL places no restriction on it. Note that other people can use the same font, and trademark registration is a separate question the font license does not answer.	yes	Condition 5 (documents are outside the license); OFL FAQ on logos and trademarks.
Put it on products I sell (T-shirts, mugs, book covers)Yes. Printed or embroidered artwork is a document created with the font, and selling that product is not selling the font.	yes	Condition 5 (documents); condition 1 only forbids selling the font software by itself.
Bundle the font file inside an app, game or software I sellYes, with conditions. You may bundle and even sell the font inside software, as long as each copy includes the copyright notice and the OFL text (a license file or the font’s metadata).	with conditions	Condition 2: bundled, redistributed and/or sold with any software, provided that each copy contains the copyright notice and this license.
Modify the font (add glyphs, change shapes, subset) and ship itYes, with conditions. Modified versions must stay under the OFL, must not use any Reserved Font Name without written permission, and must not use the authors’ names to promote the modified version.	with conditions	Conditions 3, 4 and 5 (Reserved Font Names, author names, remain under OFL).
Sell the font file on its own (or in a font bundle)No. The font, modified or not, may not be sold by itself. You can sell things made with it, or software that includes it, but not the font file as the product.	no	Condition 1: “Neither the Font Software nor any of its individual components, in Original or Modified Versions, may be sold by itself.”
Use it in video, broadcast, social posts or adsYes. Rendered text in video, images or ads is output created with the font, which the OFL does not restrict.	yes	Condition 5 (documents created using the Font Software).

How IBM Plex Sans compares in the library

IBM Plex Sans is No. 45 of 1,950 families in Google Fonts’ own popularity order and No. 38 of 722 sans serif families (snapshot 16 Oct 2026). It offers 14 styles and is a variable font with Width (wdth) 75–100, Weight (wght) 100–700. Its 6 subsets give it broader script coverage than 92% of sans serif families. It was added to Google Fonts on 11 Mar 2018 and its files were last updated on 8 Sept 2025.

Which fonts pair with IBM Plex Sans?

Computed from metadata, not taste: each body face shares IBM Plex Sans’s scripts, has a usable weight range for text and sits close in line-height. How the score works.

Roboto Slab for body text — sans serif heading over a serif body gives clear contrast; 6 shared subsets (cyrillic, cyrillic-ext, greek, latin, …); Roboto Slab is variable (wght 100–900). Proof this pair
Playfair Display for body text — sans serif heading over a serif body gives clear contrast; 4 shared subsets (cyrillic, latin, latin-ext, vietnamese); Playfair Display is variable (wght 400–900). Proof this pair
IBM Plex Serif for body text — sans serif heading over a serif body gives clear contrast; 5 shared subsets (cyrillic, cyrillic-ext, latin, latin-ext, …); IBM Plex Serif ships 7 static weights. Proof this pair

How do I add IBM Plex Sans to a website?

Paste the embed into your <head>, then use the family in CSS. The URL requests the full variable weight range (100–700); trim it to the weights you actually use.

<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+Plex+Sans:wght@100..700&display=swap" rel="stylesheet">

font-family: 'IBM Plex Sans', system-ui, sans-serif;
font-weight: 100 700; /* variable range */

To self-host instead (often preferred for privacy, see self-hosting and GDPR), download the files from the specimen page and declare them yourself. The OFL 1.1 allows redistribution with the licence kept alongside:

@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/fonts/ibm-plex-sans-variable.woff2') format('woff2');
  font-weight: 100 700;
  font-style: normal;
  font-display: swap;
}

IBM Plex Sans: licence questions

Can I use IBM Plex Sans in a logo?: Yes. A logo is a document made with the font, so the OFL places no restriction on it. Note that other people can use the same font, and trademark registration is a separate question the font license does not answer.
Can I bundle IBM Plex Sans in an app or game I sell?: Yes, with conditions. You may bundle and even sell the font inside software, as long as each copy includes the copyright notice and the OFL text (a license file or the font’s metadata).
Can I sell the IBM Plex Sans font file itself?: No. The font, modified or not, may not be sold by itself. You can sell things made with it, or software that includes it, but not the font file as the product.
Which scripts does IBM Plex Sans support?: On Google Fonts, IBM Plex Sans ships 6 subsets: Cyrillic, Cyrillic Extended, Greek, Latin, Latin Extended, Vietnamese.

Similar sans serif families

Sources

IBM Plex Sans on Google Fonts (specimen and download)
METADATA.pb in google/fonts — licence field: OFL
Licence file in the family folder · SIL Open Font License 1.1 full text · licence FAQ
Upstream source repository
Google Fonts family metadata, fetched 16 Oct 2026