IBM Plex Sans Thai

Mike Abbink, Bold Monday · Bold Monday · 2019 · OFL-1.1

The Thai member of the Plex family IBM commissioned as its corporate face and then released openly, drawn to sit with the Latin and the mono rather than beside them. It is the most restrained Thai here: no forward lean, no flare on the terminals, and a loopless design that holds at interface sizes. Seven weights, no italic in this cut, and a character set that stops at Latin and Thai rather than reaching for Turkish.

See IBM Plex Sans Thai in a paragraphCompare with Bai Jamjuree and Kanit

IBM Plex Sans Thai at a glance

Commercial use
Yes · OFL 1.1
On a website
Yes · WOFF2 here
Variable
No · 7 weights
In a logo
Yes
Türkçe (ı İ ğ ş)
No
Italic
No

Alphabets

Style

Click the text above to set it in your own words.

Weight — 400

Size ladder

96

Sphinx of black quartz, judge my vow

64

Sphinx of black quartz, judge my vow

40

Sphinx of black quartz, judge my vow

24

Sphinx of black quartz, judge my vow

16

Sphinx of black quartz, judge my vow

12

Sphinx of black quartz, judge my vow

Specification

Designer
Mike Abbink, Bold Monday
Foundry
Bold Monday
Released
2019
Category
Sans-serif
License
OFL-1.1
Commercial use
Allowed
Good for
Interfaces, Documents, Thai body text, Technical writing
Weights
100, 200, 300, 400, 500, 600, 700
Styles
Normal
Variable
No
Glyphs
520
Languages
Latin, Latin Extended, Thai
Download size
378 KB
Source
github.com/google/fonts/tree/main/ofl/ibmplexsansthai

IBM Plex Sans Thai character map

451 characters in the complete font. Grouped by the alphabets it covers — every cell is a character the file really contains.

Latin110

Uppercase

  • 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

Lowercase

  • 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

Numerals

  • 0
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9

Punctuation & symbols

  • .
  • ,
  • :
  • ;
  • !
  • ?
  • '
  • "
  • ‘
  • ’
  • “
  • ”
  • (
  • )
  • [
  • ]
  • {
  • }
  • /
  • \
  • |
  • -
  • –
  • —
  • _
  • @
  • #
  • $
  • %
  • &
  • *
  • +
  • =
  • <
  • >
  • ~
  • ^
  • `
  • €
  • £
  • ¥
  • ©
  • ®
  • °
  • §
  • †
  • •
  • …

Latin Extended78

Western European

  • À
  • Á
  • Â
  • Ã
  • Ä
  • Å
  • Æ
  • Ç
  • È
  • É
  • Ê
  • Ë
  • Ì
  • Í
  • Î
  • Ï
  • Ð
  • Ñ
  • Ò
  • Ó
  • Ô
  • Õ
  • Ö
  • Ø
  • Ù
  • Ú
  • Û
  • Ü
  • Ý
  • Þ
  • ß
  • à
  • á
  • â
  • ã
  • ä
  • å
  • æ
  • ç
  • è
  • é
  • ê
  • ë
  • ì
  • í
  • î
  • ï
  • ð
  • ñ
  • ò
  • ó
  • ô
  • õ
  • ö
  • ø
  • ù
  • ú
  • û
  • ü
  • ý
  • þ
  • ÿ

Central and Eastern European

  • Đ
  • ı
  • IJ
  • ij
  • ĵ
  • ŀ
  • Ł
  • ł
  • Œ
  • œ
  • Š
  • š
  • Ÿ
  • Ž
  • ž

Romanian and other

  • ƒ

Thai67

Consonants

  • ก
  • ข
  • ฃ
  • ค
  • ฅ
  • ฆ
  • ง
  • จ
  • ฉ
  • ช
  • ซ
  • ฌ
  • ญ
  • ฎ
  • ฏ
  • ฐ
  • ฑ
  • ฒ
  • ณ
  • ด
  • ต
  • ถ
  • ท
  • ธ
  • น
  • บ
  • ป
  • ผ
  • ฝ
  • พ
  • ฟ
  • ภ
  • ม
  • ย
  • ร
  • ฤ
  • ล
  • ฦ
  • ว
  • ศ
  • ษ
  • ส
  • ห
  • ฬ
  • อ
  • ฮ

Vowels

  • ะ
  • า
  • ำ
  • เ
  • แ
  • โ
  • ใ
  • ไ

Digits and signs

  • ๐
  • ๑
  • ๒
  • ๓
  • ๔
  • ๕
  • ๖
  • ๗
  • ๘
  • ๙
  • ฯ
  • ๆ
  • ฿

Use IBM Plex Sans Thai on the web

Self-hosted

You serve the file yourself. Nothing depends on this site staying up, and you get the whole character set — all Latin, Latin Extended, Thai. The file is ibm-plex-sans-thai.woff2, the same one the WOFF2 button above gives you.

@font-face {
  font-family: 'IBM Plex Sans Thai';
  /* Take the WOFF2 button above, put ibm-plex-sans-thai.woff2 wherever
     you serve static files from, and point this at it. */
  src: url('/fonts/ibm-plex-sans-thai.woff2') format('woff2');
  font-weight: 100;
  font-style: normal;
  font-display: swap;
}

body {
  font-family: 'IBM Plex Sans Thai', sans-serif;
}

Hosted by us

One line, nothing to upload. Put this in your <head>:

<link rel="preconnect" href="https://thatsmyfont.com">
<link rel="stylesheet" href="https://thatsmyfont.com/fontfiles/ibm-plex-sans-thai.css">

Then use it in your CSS:

body {
  font-family: 'IBM Plex Sans Thai', sans-serif;
}

One thing to know: the file we host is cut down to Latin characters so pages load quickly. IBM Plex Sans Thai also covers Thai, and for those you need the download and the self-hosted route.

Questions

Is IBM Plex Sans Thai free for commercial use?
Yes. IBM Plex Sans Thai is released under the SIL Open Font License 1.1, which allows commercial use with no fee and no attribution requirement. You can use it in client work, in products you sell, on the web and in print. The one thing you may not do is sell the font file on its own. The licence is inside the download.
Can I use IBM Plex Sans Thai in a logo?
Yes. The licence covers the font software, not the artwork you make with it, so a logo set in IBM Plex Sans Thai belongs to you — including if you later register it as a trademark. You do not need permission and you do not owe anything to Mike Abbink, Bold Monday. What the licence stops you doing is redistributing the font file itself as a product.
How do I install IBM Plex Sans Thai?
Download the zip and unzip it. On a Mac, select the 7 font files inside and open them, then press Install Font. On Windows, select them, right-click and choose Install. Restart any application that was already open before it will show up.
Does IBM Plex Sans Thai support Turkish?
No. IBM Plex Sans Thai covers Latin, but not the extra characters Türkçe needs — the dotless ı, the dotted İ, and ğ and ş. Text set in it would come out with missing or wrong letters.
What languages does IBM Plex Sans Thai support?
IBM Plex Sans Thai covers Latin, Latin Extended and Thai, across 520 glyphs. Anything outside those alphabets is not included — the character map further up this page shows exactly what you get.
What weights does IBM Plex Sans Thai come in?
IBM Plex Sans Thai comes in 7 weights: Thin (100), Extra Light (200), Light (300), Regular (400), Medium (500), Semi Bold (600) and Bold (700). Each weight is its own file in the download.
Is there a smaller, Latin-only version of IBM Plex Sans Thai?
Yes — the "WOFF2 · Latin only" button on this page. It is 21 KB against 39 KB for the complete file, 44% smaller, with every weight the family has still in it. It covers Latin and Latin Extended, which is everything a page in English, Turkish or a western European language sets — Türkçe included, since ı, İ, ğ and ş all live in that range. Take the complete file instead if you set Cyrillic, Greek or any alphabet outside Latin.
Where can I download IBM Plex Sans Thai as WOFF2?
From the WOFF2 button on this page — the file is ibm-plex-sans-thai.woff2, and it is about 39 KB. It is the complete font repacked for the web rather than a cut-down copy: the same glyphs, the same spacing and the same hinting as the .ttf in the download, roughly 60% smaller. Every browser still receiving updates reads WOFF2, so it is the only web format most sites need. Google Fonts does not offer this file for download at all — it serves WOFF2 from its own servers and gives you .ttf if you ask for the family.

IBM Plex Sans Thai license

OFL-1.1

You may use, modify and redistribute this font, including in commercial work. You may not sell the font file on its own, and any modified version must be released under the same license and under a different name.

Commercial use allowed

Designed by Mike Abbink, Bold Monday

Copyright 2019 IBM Corp. All rights reserved.

  • Taken unmodified from google/fonts
  • The licence file is inside every zip — the site will not publish a download without one
  • This page’s data last changed on 4 September 2026

Read the full license text · What these licenses mean · How we check

Cite this page

IBM Plex Sans Thai font: licence, alphabets and downloads. Thats My Font. https://thatsmyfont.com/fonts/ibm-plex-sans-thai (updated 2026-09-04)

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