# Fonts Like Roboto Serif

12 open fonts whose letters are closest to Roboto Serif, ranked by a glyph comparison. All free for commercial use.

## Quick Answer

The closest open font to Roboto Serif is Source Serif 4 (similarity 75), then IBM Plex Serif and Domine. Source Serif 4 is released under the SIL Open Font License 1.1 and is free for commercial use.

## Ranked Open Lookalikes (12 Fonts)

| Rank | Font | Similarity Score | Licence | Details |
| :--- | :--- | :--- | :--- | :--- |
| #1 | **Source Serif 4** | 75 / 100 | OFL-1.1 | [/fonts/source-serif-4/](/fonts/source-serif-4.md) |
| #2 | **IBM Plex Serif** | 72 / 100 | OFL-1.1 | [/fonts/ibm-plex-serif/](/fonts/ibm-plex-serif.md) |
| #3 | **Domine** | 71 / 100 | OFL-1.1 | [/fonts/domine/](/fonts/domine.md) |
| #4 | **PT Serif Caption** | 70 / 100 | OFL-1.1 | [/fonts/pt-serif-caption/](/fonts/pt-serif-caption.md) |
| #5 | **Brawler** | 70 / 100 | OFL-1.1 | [/fonts/brawler/](/fonts/brawler.md) |
| #6 | **DejaVu Math** | 70 / 100 | OFL-1.1 | [/fonts/dejavu-math/](/fonts/dejavu-math.md) |
| #7 | **Headland One** | 69 / 100 | OFL-1.1 | [/fonts/headland-one/](/fonts/headland-one.md) |
| #8 | **Roboto Slab** | 69 / 100 | Apache-2.0 | [/fonts/roboto-slab/](/fonts/roboto-slab.md) |
| #9 | **Kameron** | 67 / 100 | OFL-1.1 | [/fonts/kameron/](/fonts/kameron.md) |
| #10 | **Podkova** | 67 / 100 | OFL-1.1 | [/fonts/podkova/](/fonts/podkova.md) |
| #11 | **Charis SIL** | 67 / 100 | OFL-1.1 | [/fonts/charis-sil/](/fonts/charis-sil.md) |
| #12 | **Montagu Slab** | 67 / 100 | OFL-1.1 | [/fonts/montagu-slab/](/fonts/montagu-slab.md) |

## Other Scripts With Similar Latin Letters

- **Suwannaphum** (Khmr): Similarity 71, licence OFL-1.1 - [/fonts/suwannaphum/](/fonts/suwannaphum.md)
- **Markazi Text** (Arab): Similarity 70, licence OFL-1.1 - [/fonts/markazi-text/](/fonts/markazi-text.md)
- **Abyssinica SIL** (Ethi): Similarity 69, licence OFL-1.1 - [/fonts/abyssinica-sil/](/fonts/abyssinica-sil.md)

## Scoring Method

62 letters and digits (A-Z a-z 0-9) rendered at 160px cap height on a 32x32 grid with 3px gaussian blur, combined with edge-orientation texture (15% weight). Scores are normalized so that 0 represents an average pair of fonts across the 1571 compared fonts, and 100 represents identical letter shapes. Computed on 2026-10-22 using glyph-shape + edge-texture v2.

## Machine API

JSON representation available at [/api/fonts-like/roboto-serif.json](/api/fonts-like/roboto-serif.json).