Icon Generator
Professional icon and logo generator for apps, websites, and branding.
Features
- 📱 App Icons: iOS and Android standards
- 🌐 Web Icons: Favicon, OG images
- 🎨 Logo Design: Brand marks, wordmarks
- 📐 Multi-Size: Auto-export all required sizes
- 🎯 Customizable: Colors, shapes, styles
Supported Formats
iOS App Icons
| Size | Scale | Usage |
|---|
| 1024×1024 | 1x | App Store |
| 180×180 | 3x | iPhone |
| 120×120 | 2x | iPhone |
| 167×167 | 2x | iPad Pro |
| 152×152 | 2x | iPad |
| 80×80 | 2x | iPad Spotlight |
| 58×58 | 2x | iPhone Settings |
| 40×40 | 2x | iPhone Notification |
Android App Icons
| Size | Usage |
|---|
| 512×512 | Play Store |
| 192×192 | xxxhdpi |
| 144×144 | xxhdpi |
| 96×96 | xhdpi |
| 72×72 | hdpi |
| 48×48 | mdpi |
Web Icons
| Size | Usage |
|---|
| 512×512 | PWA icon |
| 192×192 | PWA icon |
| 180×180 | Apple touch |
| 32×32 | Favicon |
| 16×16 | Favicon |
Trigger Conditions
- "Create app icon" / "生成App图标"
- "Make favicon" / "制作网站图标"
- "Generate logo" / "生成Logo"
- "icon-generator"
Icon Styles
1. Flat Icon
- Clean, minimal design
- Single color or gradient
- No shadows or effects
- Best for: Modern apps
2. Material Icon
- Google Material style
- Bold shapes
- Limited color palette
- Best for: Android apps
3. iOS Style
- Rounded square
- Subtle gradients
- Apple aesthetic
- Best for: iOS apps
4. 3D Icon
- Depth and shadows
- Realistic look
- Eye-catching
- Best for: Games, entertainment
5. Line Icon
- Outline only
- Minimal, clean
- Elegant
- Best for: Productivity apps
Python Code
from PIL import Image, ImageDraw, ImageFont
import os
import math
class IconGenerator:
def __init__(self):
self.ios_sizes = [
('AppStore', 1024),
('iPhone_3x', 180),
('iPhone_2x', 120),
('iPadPro', 167),
('iPad', 152),
('iPadSpotlight', 80),
('iPhoneSettings', 58),
('iPhoneNotification', 40),
]
self.android_sizes = [
('PlayStore', 512),
('xxxhdpi', 192),
('xxhdpi', 144),
('xhdpi', 96),
('hdpi', 72),
('mdpi', 48),
]
self.web_sizes = [
('PWA_512', 512),
('PWA_192', 192),
('AppleTouch', 180),
('Favicon_32', 32),
('Favicon_16', 16),
]
def _load_font(self, size):
paths = [
'/System/Library/Fonts/PingFang.ttc',
'/usr/share/fonts/truetype/noto/NotoSansCJK-Regular.ttc',
]
for p in paths:
if os.path.exists(p):
try:
return ImageFont.truetype(p, size)
except:
continue
return ImageFont.load_default()
def create_flat_icon(self, symbol, bg_color, symbol_color, size=(512, 512)):
"""Flat design icon"""
img = Image.new('RGBA', size, (*bg_color, 255))
draw = ImageDraw.Draw(img)
font = self._load_font(size[0] // 3)
bbox = draw.textbbox((0, 0), symbol, font=font)
w, h = bbox[2] - bbox[0], bbox[3] - bbox[1]
x, y = (size[0] - w) // 2, (size[1] - h) // 2
draw.text((x, y), symbol, font=font, fill=(*symbol_color, 255))
return img
def create_material_icon(self, symbol, color, size=(512, 512)):
"""Material Design icon"""
img = Image.new('RGBA', size, (0, 0, 0, 0))
draw = ImageDraw.Draw(img)
# Circular background
margin = size[0] // 10
draw.ellipse([(margin, margin), (size[0]-margin, size[1]-margin)],
fill=(*color, 255))
# Icon
font = self._load_font(size[0] // 3)
bbox = draw.textbbox((0, 0), symbol, font=font)
w, h = bbox[2] - bbox[0], bbox[3] - bbox[1]
x, y = (size[0] - w) // 2, (size[1] - h) // 2
draw.text((x, y), symbol, font=font, fill=(255, 255, 255, 255))
return img
def create_ios_icon(self, symbol, bg_color, symbol_color, size=(1024, 1024)):
"""iOS style icon with rounded corners"""
import numpy as np
# Create base image
img = Image.new('RGBA', size, (*bg_color, 255))
draw = ImageDraw.Draw(img)
# Add subtle gradient
for y in range(size[1]):
ratio = y / size[1]
r = int(bg_color[0] * (1 - ratio * 0.2))
g = int(bg_color[1] * (1 - ratio * 0.2))
b = int(bg_color[2] * (1 - ratio * 0.2))
draw.line([(0, y), (size[0], y)], fill=(r, g, b, 255))
# Add symbol
font = self._load_font(size[0] // 3)
bbox = draw.textbbox((0, 0), symbol, font=font)
w, h = bbox[2] - bbox[0], bbox[3] - bbox[1]
x, y = (size[0] - w) // 2, (size[1] - h) // 2
draw.text((x, y), symbol, font=font, fill=(*symbol_color, 255))
return img
def create_line_icon(self, path_points, color, size=(512, 512)):
"""Line/outline style icon"""
img = Image.new('RGBA', size, (255, 255, 255, 255))
draw = ImageDraw.Draw(img)
if len(path_points) > 1:
draw.line(path_points, fill=(*color, 255), width=max(2, size[0] // 50))
return img
def apply_rounded_corners(self, img, radius=None):
"""Apply iOS-style rounded corners"""
if radius is None:
radius = img.size[0] // 5
mask = Image.new('L', img.size, 0)
draw = ImageDraw.Draw(mask)
draw.rounded_rectangle([(0, 0), img.size], radius=radius, fill=255)
result = Image.new('RGBA', img.size, (0, 0, 0, 0))
result.paste(img, mask=mask)
return result
def export_all_sizes(self, img, output_dir, platform='all'):
"""Export icon in all required sizes"""
os.makedirs(output_dir, exist_ok=True)
sizes = []
if platform in ['ios', 'all']:
sizes.extend(self.ios_sizes)
if platform in ['android', 'all']:
sizes.extend(self.android_sizes)
if platform in ['web', 'all']:
sizes.extend(self.web_sizes)
exported = []
for name, size in sizes:
resized = img.resize((size, size), Image.LANCZOS)
path = os.path.join(output_dir, f'icon_{name}_{size}x{size}.png')
resized.save(path)
exported.append(path)
return exported
# Example
gen = IconGenerator()
# Create iOS icon
icon = gen.create_ios_icon('A', (30, 60, 114), (255, 255, 255))
# Apply rounded corners
icon = gen.apply_rounded_corners(icon)
# Export all sizes
gen.export_all_sizes(icon, 'output/')
Usage Examples
User: "Create an app icon for my note-taking app"
Agent: Generate icon with notebook symbol
User: "Make a favicon for my website"
Agent: Generate 32×32 and 16×16 icons
User: "Generate all icon sizes for iOS and Android"
Agent: Export 20+ sizes for both platforms
Notes
- All icons generated locally with Pillow
- Auto-export all required sizes
- Cross-platform compatible
- Supports Chinese and English symbols
