# Fonts Like Noto Sans Mono

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

## Quick Answer

The closest open font to Noto Sans Mono is Noto Mono (similarity 89), then DejaVu Mono and iA Writer Mono. Noto 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 | **Noto Mono** | 89 / 100 | OFL-1.1 | [/fonts/noto-mono/](/fonts/noto-mono.md) |
| #2 | **DejaVu Mono** | 85 / 100 | OFL-1.1 | [/fonts/dejavu-mono/](/fonts/dejavu-mono.md) |
| #3 | **iA Writer Mono** | 83 / 100 | OFL-1.1 | [/fonts/ia-writer-mono/](/fonts/ia-writer-mono.md) |
| #4 | **IBM Plex Mono** | 82 / 100 | OFL-1.1 | [/fonts/ibm-plex-mono/](/fonts/ibm-plex-mono.md) |
| #5 | **Fira Code** | 82 / 100 | OFL-1.1 | [/fonts/fira-code/](/fonts/fira-code.md) |
| #6 | **Roboto Mono** | 81 / 100 | OFL-1.1 | [/fonts/roboto-mono/](/fonts/roboto-mono.md) |
| #7 | **Oxygen Mono** | 81 / 100 | OFL-1.1 | [/fonts/oxygen-mono/](/fonts/oxygen-mono.md) |
| #8 | **Geist Mono** | 80 / 100 | OFL-1.1 | [/fonts/geist-mono/](/fonts/geist-mono.md) |
| #9 | **Source Code Pro** | 80 / 100 | OFL-1.1 | [/fonts/source-code-pro/](/fonts/source-code-pro.md) |
| #10 | **Overpass Mono** | 79 / 100 | OFL-1.1 | [/fonts/overpass-mono/](/fonts/overpass-mono.md) |
| #11 | **Ubuntu Mono** | 79 / 100 | UFL-1.0 | [/fonts/ubuntu-mono/](/fonts/ubuntu-mono.md) |
| #12 | **Monaspace Neon** | 79 / 100 | OFL-1.1 | [/fonts/monaspace-neon/](/fonts/monaspace-neon.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/noto-sans-mono.json](/api/fonts-like/noto-sans-mono.json).