Common Ratios & Use Cases
| Ratio | Best For |
|---|---|
| 1:1 | Avatars, square stickers |
| 4:3 | Photos, presentation graphics |
| 16:9 | Covers, wide banners |
| 9:16 | Vertical short-video covers |
How to Crop
- Open the image cropping tool.
- Pick a ratio preset or crop freely.
- Drag to adjust the crop area with a live preview.
- Export a high-quality image.
WeChat 9-Grid Slicing
Use the WeChat grid slicer tool to split one large image into 9 equal tiles in a 3×3 grid. Post them to WeChat Moments and they stitch back together into a single long image, with customizable border styles.
- Upload an image.
- Choose whether to add a border.
- Generate and download all 9 images in one click.
Frequently Asked Questions
Does cropping reduce image quality?
The tool supports high-quality output with a live preview, so normal cropping won't noticeably reduce quality.
How do I post 9-grid images?
Post all 9 tiles in order to WeChat Moments, and they will display as one complete image.
References
- Canvas API — MDN: https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API