# Fonts Like Fira Code

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

## Quick Answer

The closest open font to Fira Code is Noto Mono (similarity 84), then Commit Mono and Noto Sans 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** | 84 / 100 | OFL-1.1 | [/fonts/noto-mono/](/fonts/noto-mono.md) |
| #2 | **Commit Mono** | 83 / 100 | OFL-1.1 | [/fonts/commit-mono/](/fonts/commit-mono.md) |
| #3 | **Noto Sans Mono** | 82 / 100 | OFL-1.1 | [/fonts/noto-sans-mono/](/fonts/noto-sans-mono.md) |
| #4 | **DejaVu Mono** | 81 / 100 | OFL-1.1 | [/fonts/dejavu-mono/](/fonts/dejavu-mono.md) |
| #5 | **Spline Sans Mono** | 81 / 100 | OFL-1.1 | [/fonts/spline-sans-mono/](/fonts/spline-sans-mono.md) |
| #6 | **Source Code Pro** | 80 / 100 | OFL-1.1 | [/fonts/source-code-pro/](/fonts/source-code-pro.md) |
| #7 | **IBM Plex Mono** | 79 / 100 | OFL-1.1 | [/fonts/ibm-plex-mono/](/fonts/ibm-plex-mono.md) |
| #8 | **Ubuntu Mono** | 79 / 100 | UFL-1.0 | [/fonts/ubuntu-mono/](/fonts/ubuntu-mono.md) |
| #9 | **iA Writer Mono** | 78 / 100 | OFL-1.1 | [/fonts/ia-writer-mono/](/fonts/ia-writer-mono.md) |
| #10 | **Oxygen Mono** | 77 / 100 | OFL-1.1 | [/fonts/oxygen-mono/](/fonts/oxygen-mono.md) |
| #11 | **Ubuntu Sans Mono** | 77 / 100 | UFL-1.0 | [/fonts/ubuntu-sans-mono/](/fonts/ubuntu-sans-mono.md) |
| #12 | **Fira Sans** | 77 / 100 | OFL-1.1 | [/fonts/fira-sans/](/fonts/fira-sans.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/fira-code.json](/api/fonts-like/fira-code.json).