Image Resizer
Resize images to any dimension
100% free. Runs entirely in your browser - your files and data never leave your device and nothing is uploaded to any server.
X Post selected — upload an image to apply it.
Drag & drop files here
or browse to upload
Supports PNG, JPG, WebP up to 20MB
Processed in your browser - your file never leaves this device.
About this tool
Images attached to X posts display uncropped in the timeline at 16:9, so 1600 by 900 pixels is the reliable choice. Taller images are cropped to a preview until someone taps them, which can hide the part you wanted people to see. Cropping here gives that 16:9 frame, which X shows uncropped in the timeline - anything taller is trimmed until someone taps it.
How to use this tool
- Add the imageDrop in a chart, screenshot or photo; the 1600 x 900 preset is applied.
- Frame the 16:9 cropMake sure the key number, headline or face sits fully inside the frame.
- Attach it to your postDownload and attach it - it will appear in full in the timeline.
Single images and multi-image posts
A single 16:9 image appears in full. When you attach two, three or four images, X arranges them in a grid and crops each one, so put the key detail in the centre of each image. For charts and screenshots, leave a margin so axis labels are not trimmed, and add alt text for accessibility.
Charts and screenshots on X
Charts, data graphics and product screenshots are some of the most shared images on X, and 16:9 shows them in full in the timeline. Use large labels and a short title in the image itself, because many people will see it without opening the post.
For screenshots, crop to the part that matters before resizing - a full desktop screenshot at 1600 x 900 makes text too small to read on a phone.
Key features
- Images that show in full in the X timeline.
- Ideal for charts, data graphics and product screenshots.
Common uses
- Charts and data graphics.
- Product screenshots.
- Event photos.
Tips for better results
- Use 16:9 for single images.
- Centre detail in multi-image posts.
- Add alt text.
Mistakes to avoid
- Tall images whose key part is cropped.
- Charts with labels at the edges.
Frequently asked questions
1600 x 900 pixels (16:9) displays uncropped in the timeline.
Images taller than 16:9 are cropped in previews until tapped.
In a grid, with each image cropped - keep key detail centred.
16:9 is the widest shape X shows without cropping in the timeline; anything taller is cut until someone taps it.
Drop it onto this page. The X Post Image preset is already selected, so it resizes straight to 1600 x 900 pixels and shows the crop before you download.