Altrex Icons

1,585 free SVG icons organized into three categories: Free, Brand, and Flag icons.

Altrex Icons is an open-source icon library providing high-quality SVG icons optimized for web use. All icons are available as SVG sprites and Iconify JSON format for easy integration into any project.

Credits: This library is built upon CoreUI Icons by creativeLabs Łukasz Holeczek. The original icon designs and source SVG files are from the CoreUI Icons project. We've restructured the build system to follow modern icon library patterns (SVG sprites + Iconify format) while maintaining full attribution to the original creators.

Table of Contents

• Installation
• Icon Categories
• Usage
  • SVG Sprites
  • Iconify JSON
  • Direct Icon Access
• Build from Source
• Project Structure
• License

Installation

NPM

npm install @altrex/icons

Yarn

yarn add @altrex/icons

Icon Categories

The library includes 1,585 icons organized into three categories:

| Category | Count | Prefix | Description | |----------|-------|--------|-------------| | Generic | 556 icons | generic- | General-purpose UI icons (linear style) | | Brand | 830 icons | brand- | Company and product logos | | Flag | 199 icons | flag- | Country flags |

Usage

SVG Sprites

The most efficient way to use icons in web applications. All 1,585 icons are included in a single sprite file.

HTML Usage

<!-- Generic icons -->
<svg width="24" height="24">
  <use href="node_modules/@altrex/icons/altrex.svg#generic-apple"/>
</svg>

<!-- Brand icons -->
<svg width="24" height="24">
  <use href="node_modules/@altrex/icons/altrex.svg#brand-twitter"/>
</svg>

<!-- Flag icons -->
<svg width="24" height="24">
  <use href="node_modules/@altrex/icons/altrex.svg#flag-us"/>
</svg>

ES Modules (Webpack, Vite, etc.)

import altrexSprite from '@altrex/icons/altrex.svg';

Iconify JSON

Iconify format enables framework-agnostic icon usage and is compatible with popular icon libraries.

Import Iconify JSON

// ES Modules
import genericIcons from '@altrex/icons/iconify/altrex-generic.json';
import brandIcons from '@altrex/icons/iconify/altrex-brand.json';
import flagIcons from '@altrex/icons/iconify/altrex-flag.json';

Use with Iconify Libraries

React:

import { Icon } from '@iconify/react';
import genericIcons from '@altrex/icons/iconify/altrex-generic.json';

// Register icon set
import { addCollection } from '@iconify/react';
addCollection(genericIcons);

// Use icons
<Icon icon="altrex-generic:generic-apple" />

Vue:

<template>
  <Icon icon="altrex-generic:generic-apple" />
</template>

<script setup>
import { Icon, addCollection } from '@iconify/vue';
import genericIcons from '@altrex/icons/iconify/altrex-generic.json';

addCollection(genericIcons);
</script>

Svelte:

<script>
import { Icon, addCollection } from '@iconify/svelte';
import genericIcons from '@altrex/icons/iconify/altrex-generic.json';

addCollection(genericIcons);
</script>

<Icon icon="altrex-generic:generic-apple" />

Direct Icon Access

Individual SVG Files

All source SVG files are available in the icons/ directory:

icons/
├── generic/    # 556 SVG files
├── brand/      # 830 SVG files
└── flag/       # 199 SVG files

Icon Inventory (JSON)

Use icons.json to programmatically access icon names:

import icons from '@altrex/icons/icons.json';

console.log(icons.generic);  // ["generic-3d", "generic-4k", "generic-account-logout", ...]
console.log(icons.brand);    // ["brand-500px", "brand-abstract", ...]
console.log(icons.flag);     // ["flag-ad", "flag-ae", ...]

Build from Source

Prerequisites

• Node.js >= 24
• npm or yarn

Build Steps

# Install dependencies
npm install

# Run full build
npm run build

Build Scripts

| Script | Description | |--------|-------------| | npm run clean | Remove generated files | | npm run optimize | Optimize SVG files with SVGO | | npm run sprite | Generate icons.json inventory | | npm run json | Create SVG sprite files | | npm run iconify | Export Iconify JSON format | | npm run build | Run all build steps |

Build Pipeline

The build process follows these steps:

1. Optimize (svgo) - Cleans and optimizes all SVG files
2. Inventory (createIconsJson.cjs) - Generates icons.json with categorized icon names
3. Sprite (createSvgSprite.js) - Creates single SVG sprite (altrex.svg) with all 1,585 icons
4. Iconify (exportIconify.js) - Exports Iconify JSON format (iconify/ directory)

Project Structure

altrex-icons/
├── icons/                          # Source SVG files (1,585 files)
│   ├── generic/                    # 556 generic icons
│   ├── brand/                      # 830 brand icons
│   └── flag/                       # 199 flag icons
├── iconify/                        # Iconify JSON exports
│   ├── altrex-generic.json        # Generic icons in Iconify format
│   ├── altrex-brand.json          # Brand icons in Iconify format
│   └── altrex-flag.json           # Flag icons in Iconify format
├── scripts/                        # Build scripts
│   ├── createIconsJson.cjs        # Generate icons.json
│   ├── createSvgSprite.js         # Generate SVG sprite
│   └── exportIconify.js           # Generate Iconify JSON
├── altrex.svg                      # SVG sprite with all 1,585 icons
├── icons.json                      # Icon inventory metadata
├── svgo.config.mjs                # SVG optimization config
├── package.json                    # NPM package config
└── README.md                       # This file

Generated Files

After running npm run build, the following files are generated:

| File | Size | Description | |------|------|-------------| | altrex.svg | ~4.8 MB | SVG sprite with all 1,585 icons | | icons.json | ~31 KB | Icon inventory (categorized names) | | iconify/altrex-generic.json | ~411 KB | Iconify JSON (generic icons) | | iconify/altrex-brand.json | ~1.4 MB | Iconify JSON (brand icons) | | iconify/altrex-flag.json | ~3.3 MB | Iconify JSON (flag icons) |

Icon Naming Convention

Icons follow a consistent naming pattern:

• Generic icons: generic-{name} (e.g., generic-apple, generic-airplane-mode)
• Brand icons: brand-{name} (e.g., brand-twitter, brand-facebook)
• Flag icons: flag-{code} (e.g., flag-us, flag-gb, flag-fr)

Styling Icons

Size Control

/* CSS */
svg {
  width: 24px;
  height: 24px;
}

<!-- HTML -->
<svg width="24" height="24">
  <use href="altrex.svg#generic-apple"/>
</svg>

Color Control

Icons use var(--ci-primary-color, currentColor) which allows easy color customization:

/* Method 1: currentColor (inherits from parent) */
.icon-wrapper {
  color: #ff6b6b;
}

/* Method 2: CSS variable */
.icon-wrapper {
  --ci-primary-color: #4dabf7;
}

Responsive Icons

.icon {
  width: 1em;
  height: 1em;
  vertical-align: middle;
}

.large-icon {
  font-size: 2rem;
}

Browser Support

SVG sprites are supported in all modern browsers:

• Chrome/Edge (latest)
• Firefox (latest)
• Safari (latest)
• iOS Safari (latest)
• Android Browser (latest)

For older browsers, consider using a polyfill like svg4everybody.

Credits & Attribution

This library is based on CoreUI Icons created by:

• creativeLabs Łukasz Holeczek - CoreUI
• Jazzy Innovations sp. z o.o. - jazzy.pro
• CoreUI Team - GitHub

All original icon designs are from the CoreUI Icons project. This derivative work restructures the build system and distribution format while maintaining the original icon artwork.

License

Code & Build System

MIT License - Copyright (c) 2026 Altrex

The build scripts, configuration files, and distribution format are licensed under the MIT License.

Icon Artwork

The icon artwork follows the original CoreUI Icons licensing:

• CoreUI Icons Free (Linear icons) - CC BY 4.0 License

  • All generic icons (generic-* prefix) are licensed under Creative Commons Attribution 4.0
  • You can use them for commercial and non-commercial projects
  • Attribution to CoreUI is appreciated but not required

• Brand Icons (brand-* prefix)

  • Brand icons are trademarks of their respective owners
  • Use of these trademarks does not indicate endorsement
  • Only use brand logos to represent the actual company/product/service

• Flag Icons (flag-* prefix)

  • Flag icons are in the public domain (CC0 1.0 Universal)

For complete licensing details, see the original CoreUI Icons repository.

Original Icon Library: CoreUI Icons Original Documentation: coreui.io/icons