# Fonts Like Source Code Pro

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

## Quick Answer

The closest open font to Source Code Pro is Sometype Mono (similarity 84), then Noto Mono and IBM Plex Mono. Sometype 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 | **Sometype Mono** | 84 / 100 | OFL-1.1 | [/fonts/sometype-mono/](/fonts/sometype-mono.md) |
| #2 | **Noto Mono** | 82 / 100 | OFL-1.1 | [/fonts/noto-mono/](/fonts/noto-mono.md) |
| #3 | **IBM Plex Mono** | 81 / 100 | OFL-1.1 | [/fonts/ibm-plex-mono/](/fonts/ibm-plex-mono.md) |
| #4 | **Commit Mono** | 80 / 100 | OFL-1.1 | [/fonts/commit-mono/](/fonts/commit-mono.md) |
| #5 | **Noto Sans Mono** | 80 / 100 | OFL-1.1 | [/fonts/noto-sans-mono/](/fonts/noto-sans-mono.md) |
| #6 | **Fira Code** | 80 / 100 | OFL-1.1 | [/fonts/fira-code/](/fonts/fira-code.md) |
| #7 | **iA Writer Mono** | 79 / 100 | OFL-1.1 | [/fonts/ia-writer-mono/](/fonts/ia-writer-mono.md) |
| #8 | **Fragment Mono** | 76 / 100 | OFL-1.1 | [/fonts/fragment-mono/](/fonts/fragment-mono.md) |
| #9 | **Spline Sans Mono** | 76 / 100 | OFL-1.1 | [/fonts/spline-sans-mono/](/fonts/spline-sans-mono.md) |
| #10 | **DejaVu Mono** | 76 / 100 | OFL-1.1 | [/fonts/dejavu-mono/](/fonts/dejavu-mono.md) |
| #11 | **Source Sans 3** | 76 / 100 | OFL-1.1 | [/fonts/source-sans-3/](/fonts/source-sans-3.md) |
| #12 | **Cousine** | 76 / 100 | OFL-1.1 | [/fonts/cousine/](/fonts/cousine.md) |

## Other Scripts With Similar Latin Letters

- **Narnoor** (Gong): Similarity 76, licence OFL-1.1 - [/fonts/narnoor/](/fonts/narnoor.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/source-code-pro.json](/api/fonts-like/source-code-pro.json).