Resize Images for Social Media
Resize any image to exact social media dimensions — Instagram posts and stories, Facebook covers, X headers, YouTube thumbnails, LinkedIn posts and more..
How to use Social Media Resizer
Choose the platform format — Instagram post, story or reel cover, Facebook post or cover, X post or header, YouTube thumbnail, LinkedIn post, WhatsApp profile — and the tool fits your image to the exact pixels. Fill crops to cover the frame; Fit keeps the whole image and pads with white or a blurred stretch of the image itself, the look you see everywhere on stories.
- Drop your file into the box above, or click it to browse. You can also paste from the clipboard.
- Adjust the options to taste — the defaults are sensible for most cases.
- Press Resize and watch the progress bar; everything runs on your device.
- Download your result — individually, or as a ZIP when there are several files.
Like every tool on ImageCompressorKits, this runs 100% in your browser: your file is never uploaded to any server, which makes it safe to use even with private documents — and it keeps working if you go offline after the page loads.
Frequently asked questions
My image gets cropped in Fill mode — how do I keep all of it?
Switch to Fit. The full image is preserved and the empty space is filled with either clean white or an automatic blurred background, whichever you pick.
Are these the current official sizes?
They match each platform's published recommendations as of 2026. Platforms occasionally change specs; if one updates, the Custom option lets you enter any size immediately.
Is this tool really free?
Yes — completely free, with no signup, no watermark, and no file limits beyond what your device's memory can handle.
Are my files private?
Yes. Processing happens locally in your browser via JavaScript; nothing is transmitted or stored. See our privacy policy for the full picture.