Image Aspect Ratio Converter
Convert any image to common aspect ratios (1:1, 4:3, 3:2, 16:9, 9:16, 2:3) by center-cropping excess borders or adding customizable letterbox padding bars.
How to use Image Aspect Ratio Converter
- 1Upload your image via the file upload area.
- 2Choose your desired target aspect ratio from the preset list (1:1, 4:3, 3:2, 16:9, 9:16, or 2:3).
- 3Select your adjustment mode: choose "Crop" to fill the ratio by center-cropping, or "Pad" to keep all pixels and add colored bars.
- 4If using Pad mode, pick your preferred padding color, then download the converted PNG image.
Key features
Standard Ratio Presets
Convert between popular ratios including 1:1 (Square), 4:3 (Classic photo), 3:2 (35mm), 16:9 (Widescreen), 9:16 (Story/Reel), and 2:3 (Portrait).
Crop vs Pad Modes
Choose "Crop" to center-crop excess edges, or "Pad" to keep 100% of the image by adding customizable letterbox or pillarbox bars.
Custom Letterbox Padding Color
Select any solid color via hex code or color picker for letterbox bars in Pad mode.
Lossless PNG Output
Generates lossless PNG outputs preserving original sharpness, color definition, and alpha transparency.
Examples & use cases
16:9 Landscape to 1:1 Square (Crop Mode)
Center-crop a widescreen video thumbnail into a social media feed square.
Source: 1920 × 1080 px (16:9), Target: 1:1, Mode: Crop
Output: 1080 × 1080 px center-cropped square with zero horizontal stretching
4:3 Photo to 16:9 Widescreen (Pad Mode)
Add black pillarbox bars on the sides to display standard photos on widescreen displays.
Source: 1600 × 1200 px (4:3), Target: 16:9, Mode: Pad (#000000 black)
Output: 2133 × 1200 px image with pillarbox black bars on left and right, retaining 100% of original photo
Landscape to 9:16 Social Story (Pad Mode)
Fit horizontal landscape photography into vertical full-screen mobile formats.
Source: 1920 × 1080 px, Target: 9:16, Mode: Pad (#FFFFFF white)
Output: 1920 × 3413 px portrait format with top and bottom white letterbox bars
Frequently asked questions
Helpful guides & tutorials
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