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Skill

Web Asset Generator

Generate favicons, app icons (PWA), and social media Open Graph images from logos or text

Type
Skill
GitHub stars
508
License
MIT
Repo last updated
Jan 28, 2026
Source file
README.md

What Web Asset Generator is

Web Asset Generator is a skill published in the alonw0/web-asset-generator repository on GitHub, which has about 508 stars. The repository describes itself as: “Claude skill to generate favicons, app icons, and social media images from logos, text, or emojis. Supports emoji suggestions, validation, and framework auto-integration.”

A skill is a folder with a SKILL.md file: frontmatter with a name and a description, followed by instructions Claude follows. Claude loads a skill automatically when a task matches its description, and you can also run it directly with a slash and its name.

Skills work in Claude Code and in Claude Cowork, which makes Web Asset Generator a portable way to give Claude the same method everywhere.

How to install Web Asset Generator

Claude Code

  1. Download the web-asset-generator folder from the repository.
  2. Save it as ~/.claude/skills/<skill-name>/SKILL.md for all projects, or .claude/skills/<skill-name>/SKILL.md for one project.
  3. Claude loads it automatically when a task matches; you can also run it with / and its name.

Claude Cowork

  1. Zip the skill folder so SKILL.md sits at the top level of the folder.
  2. Open Customize → Skills, click +, then upload the ZIP.
  3. Start a task that matches the description, or call it by name with /.

New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.

Inside the source file

An excerpt from README.md, shared under the repository's MIT license. Read the full file on GitHub.

> 🎨 A Claude Code Skill for generating favicons, app icons, and social media images

Talk to Claude naturally to create production-ready web assets from logos, text, or emojis!

What is This?

This is a Claude Code Skill - a modular capability that extends Claude's functionality. When installed, Claude can automatically generate web assets through natural conversation.

Example conversation:

> You: "Create a favicon for my coffee shop website" > > Claude: > - Suggests relevant emojis (☕ Coffee, 🏪 Store) > - Generates all icon sizes (16×16 through 512×512) > - Validates files and checks accessibility > - Detects your framework (Next.js, Astro, etc.) > - Offers to add HTML tags to your code > - Provides testing validator links

No manual work needed - just ask Claude!

🎬 Demo

See the skill in action:

https://github.com/user-attachments/assets/99b37698-98ec-42fe-87aa-f96b86edc00b

Your browser doesn't support video playback. Download the demo video .

Watch Claude automatically generate favicons, validate them, and integrate them into your project!

🚀 Quick Start

1. Prerequisites

  • Claude Code 2.0.13 or later
  • Python 3.6+ with pip

2. Install the Plugin

Recommended: Via Plugin Marketplace

The easiest way to install:

/plugins marketplace add alonw0/web-asset-generator
and then
/plugin install web-asset-generator@web-asset-generator-marketplace

Then install dependencies:

pip install Pillow

# Optional: For emoji support
pip install pilmoji 'emoji<2.0.0'

Alternative: Manual Installation

Click to expand manual installation steps

Clone this repository:

git clone https://github.com/alonw0/web-asset-generator.git
cd web-asset-generator

Copy the skill folder to Claude's skills directory:

# macOS/Linux
cp -r skills/web-asset-generator ~/.claude/skills/

# Windows
xcopy /E /I skills\web-asset-generator %USERPROFILE%\.claude\skills\web-asset-generator

Install dependencies:

pip install Pillow
pip install pilmoji 'emoji<2.0.0'  # Optional

3. Restart Claude Code

After installation, restart Claude Code to load the plugin.

4. Use It!

Open Claude Code and try:

  • "Create a favicon with a rocket emoji"
  • "Generate Open Graph images for my blog"
  • "Make app icons from my logo.png"

Claude will automatically invoke this skill and guide you through the process!

✨ Features

  • Favicons - Browser icons (16×16, 32×32, 96×96, favicon.ico)
  • App Icons - PWA/mobile icons (180×180, 192×192, 512×512)
  • PWA Manifest - Auto-generate manifest.json with icons, colors, and settings
  • Social Images - Open Graph for Facebook, Twitter, LinkedIn (1200×630, 1200×675)
  • Emoji Support - 60+ curated emojis with smart suggestions
  • Validation - File sizes, dimensions, formats, WCAG contrast compliance
  • Auto-Integration - Framework detection and code insertion
  • Interactive - Question-based workflow using Claude's UI

📸 Examples

Emoji Favicon Generated from 🚀 with custom background Social Media Image Text with dynamic font sizing

📁 Repository Structure

web-asset-generator/                    # Repository root
├── README.md                           # This file
├── CONTRIBUTING.md                     # How to contribute
├── LICENSE                             # MIT License
├── CHANGELOG.md                        # Version history
├── .claude-plugin/                     # Plugin metadata
│   └── plugin.json                     # Plugin manifest
├── marketplace.json                    # Marketplace distribution
├── docs/                               # Documentation & examples
└── skills/                             # Skills directory
    └── web-asset-generator/           # ⭐ THE SKILL (copy this folder)
        ├── SKILL.md                    # Skill definition (Claude reads this)
        ├── CLAUDE.md                   # Development guidance
        ├── scripts/
        │   ├── generate_favicons.py    # Favicon generator
        │   ├── generate_og_images.py   # Social image generator
        │   ├── emoji_utils.py          # Emoji utilities
        │   ├── check_dependencies.py   # Dependency checker
…

To install: Copy the skills/web-asset-generator/ folder to ~/.claude/skills/

💬 Usage Examples

Once installed, use natural language:

Favicon Generation

"Create a favicon for my tech startup"
"Generate app icons from my logo.png"
"Make a favicon using a rocket emoji"
"I need PWA icons for my website"

Social Media Images

"Create Open Graph images for my blog"
"Generate Twitter card with my tagline"
"Make social sharing images from my logo"
"Create Facebook preview with custom colors"

Before you install

  • Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
  • Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
  • Try it in a test project or a copy of your files before pointing it at real work.
  • Pin the version you tested, and review changes before updating.
  • Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.

FAQ

What is Web Asset Generator?

Web Asset Generator is a skill for Claude Code and Claude Cowork from the alonw0/web-asset-generator repository on GitHub. Generate favicons, app icons (PWA), and social media Open Graph images from logos or text

How do I install Web Asset Generator in Claude Code?

Download the web-asset-generator folder from the repository. Save it as ~/.claude/skills/<skill-name>/SKILL.md for all projects, or .claude/skills/<skill-name>/SKILL.md for one project. Claude loads it automatically when a task matches; you can also run it with / and its name.

Can I use Web Asset Generator in Claude Cowork?

Zip the skill folder so SKILL.md sits at the top level of the folder. Open Customize → Skills, click +, then upload the ZIP. Start a task that matches the description, or call it by name with /.

Is Web Asset Generator safe to install?

It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.

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Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under MIT. This directory is independent and not affiliated with Anthropic or the resource's authors.