# Fonts Like Ubuntu Mono

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

## Quick Answer

The closest open font to Ubuntu Mono is Ubuntu Sans Mono (similarity 98), then DejaVu Mono and Noto Mono. Ubuntu Sans Mono is released under the Ubuntu Font Licence 1.0 and is free for commercial use.

## Ranked Open Lookalikes (12 Fonts)

| Rank | Font | Similarity Score | Licence | Details |
| :--- | :--- | :--- | :--- | :--- |
| #1 | **Ubuntu Sans Mono** | 98 / 100 | UFL-1.0 | [/fonts/ubuntu-sans-mono/](/fonts/ubuntu-sans-mono.md) |
| #2 | **DejaVu Mono** | 81 / 100 | OFL-1.1 | [/fonts/dejavu-mono/](/fonts/dejavu-mono.md) |
| #3 | **Noto Mono** | 80 / 100 | OFL-1.1 | [/fonts/noto-mono/](/fonts/noto-mono.md) |
| #4 | **Fira Code** | 79 / 100 | OFL-1.1 | [/fonts/fira-code/](/fonts/fira-code.md) |
| #5 | **Noto Sans Mono** | 79 / 100 | OFL-1.1 | [/fonts/noto-sans-mono/](/fonts/noto-sans-mono.md) |
| #6 | **Oxygen Mono** | 79 / 100 | OFL-1.1 | [/fonts/oxygen-mono/](/fonts/oxygen-mono.md) |
| #7 | **B612 Mono** | 77 / 100 | OFL-1.1 | [/fonts/b612-mono/](/fonts/b612-mono.md) |
| #8 | **Cascadia Code** | 77 / 100 | OFL-1.1 | [/fonts/cascadia-code/](/fonts/cascadia-code.md) |
| #9 | **Roboto Mono** | 76 / 100 | OFL-1.1 | [/fonts/roboto-mono/](/fonts/roboto-mono.md) |
| #10 | **Reddit Mono** | 76 / 100 | OFL-1.1 | [/fonts/reddit-mono/](/fonts/reddit-mono.md) |
| #11 | **Spline Sans Mono** | 75 / 100 | OFL-1.1 | [/fonts/spline-sans-mono/](/fonts/spline-sans-mono.md) |
| #12 | **Monaspace Argon** | 75 / 100 | OFL-1.1 | [/fonts/monaspace-argon/](/fonts/monaspace-argon.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/ubuntu-mono.json](/api/fonts-like/ubuntu-mono.json).