# Fonts Like Overpass Mono

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

## Quick Answer

The closest open font to Overpass Mono is Roboto Mono (similarity 83), then Monaspace Neon and iA Writer Mono. Roboto Mono 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 | **Roboto Mono** | 83 / 100 | OFL-1.1 | [/fonts/roboto-mono/](/fonts/roboto-mono.md) |
| #2 | **Monaspace Neon** | 80 / 100 | OFL-1.1 | [/fonts/monaspace-neon/](/fonts/monaspace-neon.md) |
| #3 | **iA Writer Mono** | 79 / 100 | OFL-1.1 | [/fonts/ia-writer-mono/](/fonts/ia-writer-mono.md) |
| #4 | **Noto Sans Mono** | 79 / 100 | OFL-1.1 | [/fonts/noto-sans-mono/](/fonts/noto-sans-mono.md) |
| #5 | **Geist Mono** | 79 / 100 | OFL-1.1 | [/fonts/geist-mono/](/fonts/geist-mono.md) |
| #6 | **IBM Plex Mono** | 79 / 100 | OFL-1.1 | [/fonts/ibm-plex-mono/](/fonts/ibm-plex-mono.md) |
| #7 | **Google Sans Code** | 78 / 100 | OFL-1.1 | [/fonts/google-sans-code/](/fonts/google-sans-code.md) |
| #8 | **Spline Sans Mono** | 78 / 100 | OFL-1.1 | [/fonts/spline-sans-mono/](/fonts/spline-sans-mono.md) |
| #9 | **DejaVu Mono** | 77 / 100 | OFL-1.1 | [/fonts/dejavu-mono/](/fonts/dejavu-mono.md) |
| #10 | **Inconsolata** | 77 / 100 | OFL-1.1 | [/fonts/inconsolata/](/fonts/inconsolata.md) |
| #11 | **Fragment Mono** | 76 / 100 | OFL-1.1 | [/fonts/fragment-mono/](/fonts/fragment-mono.md) |
| #12 | **Reddit Mono** | 76 / 100 | OFL-1.1 | [/fonts/reddit-mono/](/fonts/reddit-mono.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/overpass-mono.json](/api/fonts-like/overpass-mono.json).