Sans-serif typeface

from LY Corporation
designed by Dalton Maag, Fontrix, Fontworks, Sandoll, Cadson Demak

5 Styles

5 Weights: Thin to Heavy

Additional Scripts

Hangul, Japanese, Thai

Best for

  • Headings (display text)
  • Long reading text (body text)
  • User Interfaces (functional text)


Free and Open Source


A free, modern, clean sans-serif typeface supporting not only Latin languages but also Japanese, Korean and Thai.

My LINE Seed Font Review

With its soft touch, a friendly impression and clean shapes, LINE Seed is a hidden gem. This geometric sans-serif free font was designed for the LINE messenger app, which it is used by an international Asian audience. Therefore, LINE Seed is available in various scripts, supporting next to Latin based languages also Japanese, Korean, and Thai. And the beauty is, that they all work smoothly together.

Simple and Geometric Rounded and clean Even strokes, no contrast

¥ 100 € 17.32 ₩ 148.83 ‎ ฿ 3,950.69‎

Working in small sizes やったー Although I wish there was a Medium weight. Bold is a bit less contrasting than with other fonts, but still too much 안 돼
When used in light or very bold weight, LINE Seed looks gorgeous in large sizes. I also really like the figures.

Various type design studios worked on how to translate similar aesthetics across very diverse scripts. For example, Thai was very much simplified. Next to the linear, non-contrasting strokes, you can also see how features like the rounded corners are used across all writing systems.

Geometric construction, rounded corners in every Script, Simplified design. Line Seed in Latin, Hiragana (Japanese), Hangul (Korean) and Thai.
How LINE Seed shares design features across several scripts. I really like that simplified “Q”.

LINE Seed is available in five weights, but not every script contains each weight. Maybe because a Heavy weight would be too dense in Japanese Kanji script? The character in ExtraBold already looks very blotched, as you can see below. Korean Hangul contains only three weights, so if you have any assumptions why this is, let me know in the comments!

LINE Seed EN in Thin to Heavy

LINE Seed JP in Thin to ExtraBold

LINE Seed KR in Thin to Bold

LINE Seed TH in Thin to Heavy
Not every script contains each of the five weights.

The weights are also the one issue I have with LINE Seed. It would be perfect for UI design if there was a Medium weight. Because for text smaller than 16px the typeface soon becomes too delicate. And even though the bold weight feels a bit lighter than with other typefaces, it is too sturdy for small sizes. But besides that, I think LINE Seed is a wonderful, modern and versatile typeface.

Font Pairings with LINE Seed

LINE Seed is a linear geometric sans-serif typeface, in my opinion best for medium-lenght copy and larger text when used in the lighter or stronger weights. Pair it with one of my suggestions for UI text or more interesting headings.

LINE Seed (free)
LINE Seed (free)
  • Headings
  • Copy
  • UI Text

Learn more about pairing typefaces using the Font Matrix.

Many thanks to Mahali, who told me about LINE Seed. If you spotted a font I should review, let me know!

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Edition #170, published


  1. That’s a big deal, Oliver—font crafted in such a way as to support totally opposite languages/letters. And it looks nonchalant, effortless! o and e are super unified.
    This font is almost smiling to us 😁

    Have a wonderful time with your fam this summer !!! Cheers to rest 🏖️

  2. this is a gem for sure!
    there are so many nice corporate freebie fonts out there that go unnoticed

    is a shame the character set is so limited

      1. Well, I’m from Brazil, so basic diacritics are what would render it truly usable for a good chunk of the projects I work on. With what it offers, I can only use of it in website projects I do via the tech coop I’m part of, which takes mainly english speaking clients.

        And absolutely, italics are always welcome. Can’t think of a situation where I would prefer not having the option of italics in a typeface.
        But I think they are rare in typefaces originally intended for asian languages in general. In principle, latin languages are the only ones that make use of them traditionally, isn’t it?
        I absolutely love the typical look of Mincho fonts, but using them in text heavy projects is always tricky due to the lack of italics.

      2. arrows, circled numbers are also always welcome

        and I find old style numerals very underrated in many sans developed for screen use

      3. Yeah, Italics are something for Latin, Cyrillic, Greek Script.

        The Latin diacritics are interestingly included in the Japanese version 😅. But then you’ll have to strip it from all the Japanese characters, haha. Not sure why they is not a latin version that covers more than English.

  3. Hey Oliver, have you checked out the free font Geist? ( )

    It may not be interesting / unique enough to feature on your font fridays, but to me it seems very solid.

    Keep up the good typo grahpy work!

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