What is Resize images for Twitter / X?
TL;DR: Shrink44 resizes images to Twitter / X's ideal dimensions (1600×900 posts and 1500×500 headers) in your browser, so your uploads stay sharp and correctly framed.
Twitter / X downscales and crops images that don't match its preferred sizes. Pre-sizing to the recommended 1600×900 posts and 1500×500 headers keeps your images crisp and framed how you intend.
Shrink44 lets you enter exact dimensions or pick from built-in presets, with contain / cover / stretch fit modes — all locally, no uploads.