Resize any image to the exact 1600×900px (16:9) size for Twitter/X. Free, private, in your browser.
Resize any image to the exact Twitter/X Twitter/X Post Image size. Processed in your browser — never uploaded.
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Auto-fit to 1600×900px for Twitter/X
The Twitter/X Post Image size is 1600×900 pixels, an aspect ratio of 16:9. This is the recommended dimension for In-feed post images on Twitter/X. 16:9 displays fully without cropping in the timeline. This tool resizes any image to exactly 1600×900px in your browser — you can zoom, reposition, and choose whether to fill the frame (cropping edges) or fit the whole image (adding whitespace), then download a perfectly-sized PNG.
To resize an image for Twitter/X: upload your image above, use the zoom and position sliders to frame it inside the 1600×900px area, choose Fill (to crop and fill the whole frame) or Fit (to keep the entire image with white padding), and download. The result is exactly 1600×900px — the correct Twitter/X Post Image size — so it uploads to Twitter/X without any awkward cropping. Everything happens in your browser, so your image is never uploaded to a server.
For the best Twitter/X Post Image: start with a high-resolution image so it stays sharp at 1600×900px, keep important content (faces, text, logos) in the center safe zone, and export as PNG for crisp edges or JPEG for smaller file size. 16:9 displays fully without cropping in the timeline. Using the exact 16:9 ratio prevents Twitter/X from auto-cropping your image in unexpected ways, which is the most common reason posts look wrong after uploading.
The Twitter/X Post Image should be 1600×900 pixels with a 16:9 aspect ratio.
A Twitter/X Post Image uses a 16:9 aspect ratio (1600×900 pixels).
Use the Fit mode in this tool to keep your entire image with white padding, or Fill mode with the position sliders to control exactly what gets cropped to the 16:9 frame.