Help & Documentation
Help & Guide
Everything you need to know about using RatioGenie
Quick Start Guide
Simple Calculator
- Select from 10 common aspect ratio presets
- Or manually enter aspect ratio values (e.g., 16 and 9)
- Choose width or height input mode
- Enter pixel dimension - the other auto-calculates
- Use visual slider for ratio fine-tuning
Features Overview
Aspect Ratio Calculator
Core Features
- • Real-time dimension calculations
- • Visual slider for ratio adjustment
- • Toggle between width/height input
- • Copy results to clipboard
- • Built-in preset selector with use cases
Built-in Presets
16:9 WidescreenYouTubeTVNetflix
1:1 SquareInstagram PostProfile Pics
9:16 PortraitTikTokInstagram Stories
Plus 7 more: 4:3, 3:2, 2:3, 21:9, 5:4, 3:4, 2:1
Image Upload & Analysis
Analysis Features
- • Automatic dimension detection
- • Aspect ratio identification
- • Real-time crop preview
- • Visual comparison tools
- • Apply dimensions to calculator
Privacy & Performance
- • 100% client-side processing
- • Images never uploaded to servers
- • Web Workers for smooth performance
- • Automatic memory optimization
- • Support for large files (>2MB)
Ratio Comparison Tool
Comparison Features
- • Side-by-side aspect ratio comparison
- • Up to 6 ratios displayed simultaneously
- • Platform preset integration
- • Visual crop preview with images
- • Multi-platform content planning
Use Cases
- • Content creators planning posts
- • Designers evaluating formats
- • Social media managers
- • Cross-platform content strategy
- • Quick visual format comparison
Golden Ratio Calculator
Mathematical Features
- • Calculate golden proportions (φ ≈ 1.618)
- • Input width or height to get perfect dimensions
- • Check if custom dimensions follow golden ratio
- • Visual golden rectangle demonstrations
- • Fibonacci sequence and ratio convergence
Design Applications
- • Business cards and print materials
- • Photo frames and artwork sizing
- • Logo design and brand identity
- • Web layout and content areas
- • Architecture and spatial design
Batch Image Processor
Batch Features
- • Process multiple images simultaneously
- • Interactive drag-to-reposition crop preview
- • Individual image management
- • Bulk download processed images
- • Progress tracking for large batches
Processing Options
- • Apply preset to all images
- • Individual aspect ratio selection
- • Custom crop positioning
- • Maintain original quality
- • Memory-efficient processing
Detailed Usage Guide
Using the Calculator
Method 1: Manual Input
- Enter aspect ratio values (e.g., 16 and 9)
- Enter either width OR height in pixels
- The calculator automatically computes the missing dimension
- Click “Copy” to save results to clipboard
Method 2: Built-in Presets
- Click the preset dropdown selector
- Choose from 10 common ratios (e.g., “16:9 (Widescreen)”)
- View use case badges for each preset
- Aspect ratio values populate automatically
Method 3: Visual Slider
- Use the visual ratio slider below the inputs
- Drag to adjust aspect ratio in real-time
- Values update automatically as you slide
- Perfect for finding custom aspect ratios
Using Batch Processor
Step 1: Upload Images
- Click “Select Images” or drag & drop multiple files
- Supported formats: JPEG, PNG, WebP, GIF
- Max file size: 10MB per image (configurable)
- Review selected files before processing
Step 2: Configure Processing
- Select aspect ratio preset from dropdown
- Choose processing mode (crop/resize)
- Set output dimensions if needed
- Preview crop area for each image
Step 3: Adjust & Download
- Click preview to adjust crop position
- Drag the image to reposition crop area
- Remove individual images if needed
- Click “Process and Download” for all images
Keyboard Shortcuts
Tips & Best Practices
For Best Results
- • Use high-resolution source images for better quality
- • Preview crop position before batch processing
- • Check calculation history for recent work
- • Use built-in presets for common aspect ratios
- • Enable Web Workers for smooth performance
Privacy & Security
- • All processing happens in your browser
- • Images are never uploaded to servers
- • No account or login required
- • Clear browser data to remove history
- • Read our Privacy Policy
Troubleshooting