# Fonts Like PT Mono

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

## Quick Answer

The closest open font to PT Mono is Monaspace Argon (similarity 75), then Intel One Mono and Noto Sans Mono. Monaspace Argon 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 | **Monaspace Argon** | 75 / 100 | OFL-1.1 | [/fonts/monaspace-argon/](/fonts/monaspace-argon.md) |
| #2 | **Intel One Mono** | 74 / 100 | OFL-1.1 | [/fonts/intel-one-mono/](/fonts/intel-one-mono.md) |
| #3 | **Noto Sans Mono** | 74 / 100 | OFL-1.1 | [/fonts/noto-sans-mono/](/fonts/noto-sans-mono.md) |
| #4 | **Source Code Pro** | 73 / 100 | OFL-1.1 | [/fonts/source-code-pro/](/fonts/source-code-pro.md) |
| #5 | **Sometype Mono** | 73 / 100 | OFL-1.1 | [/fonts/sometype-mono/](/fonts/sometype-mono.md) |
| #6 | **SUSE Mono** | 73 / 100 | OFL-1.1 | [/fonts/suse-mono/](/fonts/suse-mono.md) |
| #7 | **IBM Plex Mono** | 73 / 100 | OFL-1.1 | [/fonts/ibm-plex-mono/](/fonts/ibm-plex-mono.md) |
| #8 | **iA Writer Mono** | 73 / 100 | OFL-1.1 | [/fonts/ia-writer-mono/](/fonts/ia-writer-mono.md) |
| #9 | **Monaspace Neon** | 72 / 100 | OFL-1.1 | [/fonts/monaspace-neon/](/fonts/monaspace-neon.md) |
| #10 | **Ubuntu Mono** | 72 / 100 | UFL-1.0 | [/fonts/ubuntu-mono/](/fonts/ubuntu-mono.md) |
| #11 | **Noto Mono** | 71 / 100 | OFL-1.1 | [/fonts/noto-mono/](/fonts/noto-mono.md) |
| #12 | **Roboto Mono** | 71 / 100 | OFL-1.1 | [/fonts/roboto-mono/](/fonts/roboto-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/pt-mono.json](/api/fonts-like/pt-mono.json).