X Post Image Resizer1600 × 900 px
Resize any image to exactly 1600×900px for X (Twitter). Free, instant, and nothing leaves your browser.
- Dimensions
- 1600 × 900 px
- Aspect ratio
- 16:9
- Max file size
- 5MB
- Best format
- JPG
How to resize an image for X (Twitter)
Add your image
Click Choose image or drop a file into the box above. JPG, PNG and WebP all work.
Check the crop
The preset is already set to 1600×900px. Drag inside the preview if you want to reposition the crop.
Download
Pick a format and click Download. You get a X Post Image at exactly 1600×900px.
X Post Image size at a glance
X post images display as 16:9 cards in the timeline feed. The 1600×900 size gives sharp rendering without hitting X's compression threshold too aggressively.
Why 1600×900 matters
Images are the primary engagement driver on X. A correctly sized image fills the timeline card completely without cropping, making your post visually dominant.
What happens when the size is wrong
Portrait or square images get center-cropped to 16:9 in the timeline, potentially cutting off text, faces, or key details. Users have to tap to see the full image.
Best practices
- Design for the 16:9 timeline crop — that's what most people see without tapping.
- Keep text large and in the center; X's compression can soften small details.
- PNG images over 900px wide are auto-converted to JPG, so export as JPG to control quality.
Frequently asked questions
What size should a X Post Image be?
The recommended size for a X Post Image is 1600×900 pixels (16:9 aspect ratio). The maximum file size is 5MB.
How do I resize an image for X Post Image?
Upload your image to the resizer above. It will automatically crop and resize to 1600×900px. Adjust the crop position if needed, then download the result. Your image never leaves your device.
Which format should I use for a X Post Image?
X (Twitter) accepts JPG, PNG, GIF, WEBP. We recommend JPG — Single-image posts display at 16:9 in the timeline. The expanded view shows the full image. PNG files over 900px wide get compressed to JPG.
Is my image uploaded anywhere?
No. TinyResize runs entirely in your browser. The file is read from your device, resized on your device, and downloaded from your device. Nothing is sent to a server.