Icon Generator is a free online tool that easily creates favicons and mobile app icons. This article covers how to create professional icons and optimize for each platform.

Table of Contents

1. What is Icon Generator?
2. Icon Types and Size Standards
3. Step-by-Step Usage Guide
4. Design Best Practices
5. Frequently Asked Questions (FAQ)
6. Troubleshooting
7. Related Tools
8. Summary

1. What is Icon Generator?

Icon Generator is a web tool that batch generates multiple icon sizes from a single image.

Why Choose This Tool

• ⚡ Batch Generation: Auto-generate all sizes from one image
• 🔒 Completely Free: No registration, unlimited use
• 🌍 All Platform Support: iOS, Android, Web, Windows support
• 📱 Optimization Features: Optimized output for each platform

2. Icon Types and Size Standards

Favicon (Website Icon)

Required Sizes:

• 16×16px (Browser tab)
• 32×32px (Taskbar)
• 48×48px (Desktop shortcut)
• 64×64px (High resolution)

Formats:

• ICO format (contains multiple sizes)
• PNG format
• SVG format (recommended)

iOS App Icon

Required Sizes:

• 1024×1024px (App Store)
• 180×180px (iPhone)
• 167×167px (iPad Pro)
• 152×152px (iPad)
• 120×120px (iPhone small)

Specifications:

• No rounded corners (iOS auto-rounds)
• No transparency (background color required)
• RGB format

Android App Icon

Required Sizes:

• 512×512px (Google Play)
• 192×192px (xxxhdpi)
• 144×144px (xxhdpi)
• 96×96px (xhdpi)
• 72×72px (hdpi)
• 48×48px (mdpi)

Specifications:

• Transparent PNG supported
• Adaptive icon recommended

PWA Icon

Required Sizes:

• 512×512px (required)
• 192×192px (required)
• 384×384px (recommended)

Specifications:

• PNG format
• Transparent background recommended

3. Step-by-Step Usage Guide

Step 1: Access the Tool

Access the Icon Generator page.

Use Icon Generator Now →

Step 2: Upload Source Image

Upload the image to use as icon source.

Recommended Image:

• Size: 1024×1024px or larger
• Format: PNG (transparency supported)
• Content: Simple, clear design

Step 3: Select Platform

Choose the icon platform to generate.

Step 4: Design Adjustments (Optional)

Make these adjustments as needed:

Adjustment Options:

• Background color setting
• Padding adjustment
• Corner rounding application
• Effect addition

Step 5: Generate and Download

Click the Generate button to batch create all sizes.

⏱️ Generation completes in seconds.

Download as ZIP or individually.

4. Design Best Practices

Keep It Simple

✅ Good Examples:

• 1-2 color simple palette
• Clear shapes
• Ample whitespace

❌ Bad Examples:

• Too detailed
• Too many colors
• Excessive text

Ensure Visibility

Points:

• Recognizable even at small size (16×16px)
• Ensure contrast with background
• Clear edges

Platform-Specific Optimization

For iOS:

• Gradient effects
• 3D design
• Bright colors

For Android:

• Flat design
• Material Design Guidelines compliance
• Adaptive icon support

For Web:

• Scalable with SVG
• Dark mode support
• Simple, memorable design

5. Frequently Asked Questions (FAQ)

Q: What image formats can I use for icons?

A: Supports PNG, JPEG, and SVG. Use PNG or SVG if transparency is needed.

Q: What about copyright for generated icons?

A: Source image copyright is retained. This tool only performs format conversion.

Q: Can I include text in icons?

A: Possible, but not recommended as text becomes unreadable at small sizes. Logo marks or symbols are better.

Q: Is transparent background preserved?

A: Yes, PNG transparency is maintained. However, iOS icons require background color per specifications.

Q: Do I need to manually create all sizes?

A: No, this tool automatically generates all sizes. Just prepare one 1024×1024px source image.

6. Troubleshooting

Crushed Appearance at Small Sizes

Causes and Solutions:

1. Too detailed → Change to simpler design
2. Lines too thin → Adjust to thicker lines
3. Low contrast → Increase light/dark difference

Double Rounded Corners on iOS

Cause: Source image has rounded corners applied

Solution: Use image without corners (iOS auto-rounds)

Unintended Background Color on Android

Cause: Transparent areas filled with default color

Solution:

• Explicitly specify background color
• Use adaptive icon

7. Related Tools

🎨 Logo Maker Easily create professional logos Learn More →

🖼️ Image Resizer Adjust images to any size Learn More →

📐 SVG Optimizer Optimize SVG icons Learn More →

8. Summary

This article provided a detailed guide on using Icon Generator and design best practices.

Key Takeaways:

• ✅ All platforms supported from one image
• ✅ Simple, high-visibility design is key
• ✅ Understand each platform's specifications
• ✅ Completely free, no registration required

Easily create professional icons for websites and app development!

Tags: #Icon #Favicon #AppIcon #PWA #Design #OnlineTool #i4u

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Security and Privacy

All processing is done within your browser, and no data is sent externally. You can safely use it with personal or confidential information.

Troubleshooting

Common Issues

• Not working: Clear browser cache and reload
• Slow processing: Check file size (recommended under 20MB)
• Unexpected results: Verify input format and settings

If issues persist, update your browser to the latest version or try a different browser.