Thai font · OFL

Noto Sans Thai

โนโต แซนส์ ไทย

By Narongsak Chaiwong

Typography & Licensing Specialist, ThaiGraph · April 16, 2026 · Updated August 5, 2026

Information verified as of August 2026

อ่านหน้า ฟอนต์ Noto Sans Thai เป็นภาษาไทย — พร้อมลิงก์ดาวน์โหลดและวิธีติดตั้ง →

<link href="https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@400;700&display=swap" rel="stylesheet">

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@400;700&display=swap');

font-family: 'Noto Sans Thai', sans-serif;

What Noto Sans Thai is

Noto Sans Thai is the Thai-script member of Google’s Noto family, released free under the SIL Open Font License across nine weights from Thin to Black, in a loopless cut. The google/fonts metadata lists the designer as “Google”, the category as SANS_SERIF, and the date the family was added to the repository as 19 November 2020.

The Noto project aims to give every Unicode script a harmonised typeface — sans and serif cuts that hold one tone across languages. For Thai, that produced a neutral, reliably rendering, web-safe sans whose vertical proportions align with the Noto Sans families for other scripts.

In production, Noto Sans Thai is the baseline fallback in most font-family stacks that target Thai readers. If you have not deliberately chosen something else, there is a good chance this is what your readers are already seeing.

Noto Sans Thai vs Looped vs Serif

The Noto project publishes four Thai families, not one — Noto Sans Thai, Noto Serif Thai, Noto Sans Thai Looped, and UI variants of the sans cuts. All share the same SIL OFL licence. Picking the wrong one puts the work in the wrong Thai typographic register.

• Noto Sans Thai — loopless, plain stroke ends, modern tone. Good for UI, headings, and general web content.
• Noto Sans Thai Looped — traditional circular heads, the same nine weights. Better for long body text, documents, and readers who expect loops.
• Noto Serif Thai — the serif harmonised with Noto Sans Thai, for heading/body pairing inside one system.
• Noto Sans Thai UI / Looped UI — cuts with tightened vertical metrics for space-constrained interfaces.

Short version: for long-form Thai reading, start with the looped cut or Sarabun; for modern UI and digital work, the loopless cut here is the right default.

Weights and variable axes

Noto Sans Thai has nine named weights — Thin, ExtraLight, Light, Regular, Medium, SemiBold, Bold, ExtraBold, Black — and the actual variable file carries two axes, not one. Per the google/fonts metadata the file is NotoSansThai[wdth,wght].ttf with:

• Weight axis (wght) — 100 to 900, covering all nine named weights continuously
• Width axis (wdth) — 62.5 to 100, from heavily condensed to normal width

The width axis is the part most people miss, and it is the reason to load the variable file rather than a stack of static weights: a Thai heading that overruns its column can be condensed with font-stretch instead of being shrunk. In CSS:

h1 {
  font-family: 'Noto Sans Thai', sans-serif;
  font-weight: 700;
  font-stretch: 85%;
}

One variable file replaces nine static files, cutting both download size and request count.

How to download Noto Sans Thai

Noto Sans Thai is a free download from Google Fonts — no registration, no payment, and no paid tier to upgrade to. Three routes:

1. Google Fonts ZIP — open the Noto Sans Thai specimen, click “Get font”, and download the family ZIP. It contains both the variable file and the static weights.
2. CSS embed — fastest for the web. Add a <link> to https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:[email protected]&display=swap, then set font-family: 'Noto Sans Thai', sans-serif;.
3. GitHub source — the notofonts/thai repository hosts the sources and builds for self-hosting. Its README states plainly: “This Font Software is licensed under the SIL Open Font License, Version 1.1.”

Installing locally

• Windows — unzip, right-click a .ttf file and choose “Install” (or “Install for all users” if every account on the machine needs it)
• macOS — double-click the .ttf file and click “Install Font” in Font Book
• If you want the looped cut — download Noto Sans Thai Looped as well; it is a separate Google Fonts family with the same nine weights and the same licence

Compare candidates on your own copy first in the font tester.

Is Noto Sans Thai really free for commercial use?

Yes, fully. The google/fonts metadata records the licence as OFL, and the Noto source repository confirms SIL Open Font License Version 1.1. Under that licence you can:

• Use it in any commercial work — logos, packaging, advertising, print
• Embed it as a webfont, self-hosted or served from Google Fonts
• Embed it in apps, games, and PDFs
• Modify and redistribute it, as long as the OFL notice travels with the files

The one restriction worth knowing: you cannot sell the font on its own, and a modified redistribution cannot keep the original Reserved Font Name. This is a completely different position from bundled system faces like Cordia New or Sukhumvit Set, which are tied to an OS licence and cannot be embedded on the web at all.

Best use cases

Noto Sans Thai is the correct default when neutrality, multilingual coverage, and technical reliability matter more than brand personality. Strong briefs:

• International websites with Thai as one of several supported languages
• Mobile app UI targeting Thai users that must render identically everywhere
• Encyclopedic reference content, software documentation, and knowledge bases
• Email newsletters and transactional messages where cross-client rendering matters
• Academic publications mixing Thai, English and Latin in the same paragraph

Where it does not fit: Thai-focused consumer brands that need a distinct voice — Kanit, Prompt and Bai Jamjuree all speak louder — luxury and editorial work, and long Thai body text for readers who expect loops, where Noto Sans Thai Looped or Sarabun is the better call.

Pairings

Noto Sans Thai pairs with the rest of the Noto family by design, since every family is drawn to align on vertical proportions and stroke weight. Three pairings:

• Noto Serif Thai — heading/body pairing inside one fully harmonised system
• Sarabun — looped body text under loopless headings, both open-licensed
• IBM Plex Thai — when a design system wants slightly more character than Noto while staying neutral

The Thai typography guide covers pairing in more depth; the fonts directory has the full catalogue, and free Thai fonts narrows it to open licences.

Licensing

Noto Sans Thai is released under the SIL Open Font License Version 1.1, with every weight free for commercial use, modification, web embedding, and bundling. The loopless and looped cuts share identical terms, and no paid tier exists.

Verify at either source: the Google Fonts specimen, or the notofonts/thai repository, which holds both the sources and the full licence text.

Information verified as of August 2026