https://github.com/ahatem/IoskeleyMono

Iosevka configuration to mimic the look and feel of Berkeley Mono as closely as possible.
https://github.com/ahatem/IoskeleyMono

coding-font font iosevka iosevka-custom iosevka-font monospace monospace-font programming-font typeface

Last synced: 1 day ago
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Iosevka configuration to mimic the look and feel of Berkeley Mono as closely as possible.

• Host: GitHub
• URL: https://github.com/ahatem/IoskeleyMono
• Owner: ahatem
• License: ofl-1.1
• Created: 2025-09-05T20:45:03.000Z (5 months ago)
• Default Branch: main
• Last Pushed: 2025-10-09T01:49:02.000Z (4 months ago)
• Last Synced: 2026-01-30T08:20:35.810Z (12 days ago)
• Topics: coding-font, font, iosevka, iosevka-custom, iosevka-font, monospace, monospace-font, programming-font, typeface
• Homepage:
• Size: 1.6 MB
• Stars: 486
• Watchers: 5
• Forks: 19
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# IoskeleyMono

![Ioskeley Mono Cover](assets/SocialPreview.png)

The goal of this project is to configure the [Iosevka](https://github.com/be5invis/Iosevka) typeface to mimic the look and feel of **Berkeley Mono** as closely as possible.

It uses Iosevka's extensive build options to select character variants that replicate the distinct aesthetic of Berkeley Mono, creating a free, open-source alternative for fans of that particular style.

The name is a simple mashup: **Iosevka** + **Berkeley** = **Ioskeley**.

This repository uses GitHub Actions to automatically build the font files whenever the configuration is updated.

---

## Installation

The easiest way to get the font is to download it directly from the **Releases** page.

1. [Click here to go to the Releases Page](https://github.com/ahatem/IoskeleyMono/releases)

2. Find the latest release and download the `IoskeleyMono-Build.zip` file.

3. Unzip the file and install the fonts on your system.

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## Preview

| Ioskeley Mono                                                                   | Berkeley Mono                                                                   |

| ------------------------------------------------------------------------------- | ------------------------------------------------------------------------------- |

| ![Ioskeley Mono Sample](assets/IoskeleyMono.png "Sample code in Ioskeley Mono") | ![Berkeley Mono Sample](assets/BerkeleyMono.png "Sample code in Berkeley Mono") |

> Theme used in preview: [Kintsugi Dark Flared](https://marketplace.visualstudio.com/items?itemName=ahmedhatem.kintsugi)

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### In Action

![Ioskeley Mono in Action](assets/InAction.png "Ioskeley Mono in real use")

### Configuration Choices

This configuration uses specific character variants and custom metrics to closely match the look and feel of Berkeley Mono.

- **Custom Metrics:** The font's vertical proportions, letter spacing (`sb`), and parenthesis size have been manually adjusted. This is the key to capturing Berkeley's characteristically compact and geometric feel.

- **Distinctive Characters:** Key glyphs were chosen to match, including a **single-storey `g`**, **flat-arc parentheses `()`**, and a **two-circle `8`**.

- **Clarity and Readability:** For the best coding experience, the font uses a **dotted zero**, **open-contour `6` and `9`**, and sharp, **square punctuation**.

- **High Underscore:** The underscore character is raised to ensure it is clearly visible and never blends with the line below.

For a complete list of all choices made to match Berkeley Mono, see the [`private-build-plans.toml`](./private-build-plans.toml) file.

---

### License & Credits

**Credits**: Ioskeley Mono is a custom configuration of the Iosevka typeface. All credit for the original design and build system goes to Belleve Invis and the Iosevka contributors.

Because this is a derivative of Iosevka, it is licensed under the same **SIL Open Font License 1.1**. See the `LICENSE` file for full details.