Every platform has its own image size requirements. Instagram wants squares, Twitter wants wide banners, your website wants something in between. ImgGPT's resizer handles all of it.
Setting Dimensions
By Pixels
Enter exact width and height. Common sizes:
- ●Instagram Post: 1080 x 1080
- ●Instagram Story: 1080 x 1920
- ●Twitter Post: 1200 x 675
- ●Facebook Post: 1200 x 630
- ●YouTube Thumbnail: 1280 x 720
- ●Website Hero: 1920 x 1080
By Percentage
Scale proportionally. Enter 50 to halve, 200 to double.
Enter only one dimension to scale proportionally while maintaining the original aspect ratio.
Understanding Fit Modes
Cover
Scales to fill target dimensions. May crop edges. Best for social media posts where exact dimensions matter.
Contain
Scales to fit within target dimensions. No cropping but may add letterboxing. Best when the entire image must be visible.
Fill
Stretches to match exact dimensions regardless of aspect ratio. Distorts the image — rarely the right choice.
Tips
- ●Never upscale dramatically. Use the AI Upscaler instead for intelligent upscaling.
- ●Resize before compressing. Always resize first for best quality.
- ●Use Cover for social media. Most platforms crop anyway.
- ●Consider retina. Output at 2x display size for sharp rendering on retina screens.
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