PT Serif vs Merriweather: Free Body Serifs Compared
This is a matchup of two excellent free body serifs that designers reach for again and again: PT Serif vs Merriweather. Both are open-licensed, both read well on screens, and both pair neatly with companion sans-serifs. The decision comes down to language coverage, pairing needs, and how heavy you want your body text to feel.
What is PT Serif?
PT Serif is a transitional serif designed by ParaType, released free under the SIL Open Font License. It was developed as part of the broader “PT” public type project and is built to pair seamlessly with PT Sans, sharing metrics and proportions so the two can be mixed in a single document. PT Serif has balanced, classical transitional forms with moderate contrast, and notably wide language support spanning Latin and Cyrillic scripts. That makes it a strong choice for multilingual projects, government and institutional sites, and any layout that mixes serif and sans from one coordinated family.
What is Merriweather?
Merriweather is a serif designed by Eben Sorkin of Sorkin Type, distributed free through Google Fonts under the SIL Open Font License. It was drawn for the screen, with a large x-height, slightly condensed proportions, and sturdy, robust serifs that stay sharp at small sizes. Merriweather reads as substantial and modern, which makes it a favorite for article body text, blogs, and editorial sites. It comes in several weights and has a companion sans, so it can anchor a full type system on its own.
What’s the difference between PT Serif and Merriweather?
The core difference is design intent. PT Serif is a balanced transitional serif optimized for multilingual harmony and pairing with PT Sans, while Merriweather is a sturdier, screen-first serif optimized for robust, condensed body reading. Both are free and both work for long text, but they feel distinct on the page.
| Property | PT Serif | Merriweather |
|---|---|---|
| Classification | Transitional serif | Screen serif (sturdy) |
| Designer / year | ParaType | Eben Sorkin, Sorkin Type |
| X-height | Moderate, balanced | Large |
| Key trait | Broad Cyrillic + Latin, pairs with PT Sans | Robust serifs, slightly condensed |
| Best used for | Multilingual sites, mixed serif/sans systems | Article body, blogs, editorial |
| Availability / license | Free, Google Fonts (SIL OFL) | Free, Google Fonts (SIL OFL) |
When should you use each?
Choose PT Serif when language coverage or coordinated pairing matters: multilingual content, sites serving Cyrillic and Latin audiences, or designs that want serif and sans from one matched family via PT Sans. Choose Merriweather when you want a heavier, more distinctive editorial voice for English-led body text, blogs, magazines, and content-first layouts. Both are dependable, but Merriweather feels more robust while PT Serif feels more even and classical. For more options, browse our roundup of the best serif fonts, and if you are weighing Merriweather against a system font, see our Merriweather vs Georgia comparison.
Which is better for body text / on screen?
Both are built for on-screen body text and perform well at paragraph sizes. Merriweather’s larger x-height and slightly condensed forms pack more text per line and project a stronger presence, which suits dense editorial reading. PT Serif’s balanced transitional structure produces a calmer, more neutral gray on the page, which is easier to mix with a sans companion and reads comfortably across languages. For heavy English editorial, Merriweather edges ahead; for multilingual or paired serif-sans systems, PT Serif is the smoother fit. Both rank among our best Google Fonts for body copy.
Are PT Serif and Merriweather free?
Yes, both are completely free. PT Serif and Merriweather are each released under the SIL Open Font License, which permits commercial use, self-hosting, embedding in apps, and bundling, provided you keep the license files when redistributing the fonts. There are no royalties or attribution requirements in normal use. Our font licensing guide explains exactly what the SIL OFL allows.
Frequently Asked Questions
Is PT Serif or Merriweather better for long articles?
Both handle long articles well. Merriweather suits English editorial body text where you want a robust, modern feel and efficient line packing. PT Serif suits longer text that spans multiple languages or pairs with a sans companion, offering a calmer, more neutral reading texture. The best choice depends on language needs and tone.
Does PT Serif support Cyrillic?
Yes. PT Serif has notably broad language support, including extensive Cyrillic alongside Latin coverage. That makes it a strong option for multilingual sites and projects serving Russian and other Cyrillic-script audiences. Merriweather’s Latin coverage is solid, but PT Serif is the stronger choice for Cyrillic-heavy work.
What sans-serif pairs with each?
PT Serif is designed to pair with PT Sans, which shares its metrics for seamless mixing. Merriweather has its own companion, Merriweather Sans, built to harmonize with it. Either pairing keeps serif and sans coordinated, but you can also mix them with other humanist sans-serifs to taste.
Which serif looks heavier on the page?
Merriweather generally reads heavier and more robust because of its sturdy serifs and slightly condensed, large-x-height forms. PT Serif produces a lighter, more even gray with its balanced transitional proportions. If you want a bolder editorial presence, choose Merriweather; for a calmer texture, choose PT Serif.
Can I use both fonts commercially for free?
Yes. Both PT Serif and Merriweather are licensed under the SIL Open Font License, which allows free commercial use, self-hosting, and embedding. You only need to retain the license files if you redistribute the font files themselves. No payment or attribution is required for typical website and app use.
