Is the Social Media Image Resizer free?
Yes. It is free to use and runs entirely in your browser with no account or watermark.
Does it upload images to a server?
No. The resizing, framing, and export happen in your browser, so the image stays on your device.
Which platforms are supported?
It includes presets for Instagram feed and stories, Facebook, X, LinkedIn posts and banners, YouTube thumbnails, and TikTok covers.
When is crop better than fit?
Crop is better when the frame must be fully filled and minor cropping is fine; fit is better when the entire image needs to stay visible.
Does it work on mobile?
Yes. It runs in any modern mobile or desktop browser, with drag-to-frame controls that work on touchscreens.
Which framing mode should I use?
Smart crop when the subject is comfortably inside the frame and the edges are expendable, which covers most photos. Fit or Fill when the whole composition matters, for example a chart, a screenshot, a quote card, or a product shot where cropping would cut off part of the object. Fill just replaces the empty margins with a color instead of transparency.
Why did my transparent background turn white?
Because you exported as JPG, and JPEG has no alpha channel at all. Any transparency has to be composited onto something, and that something defaults to white. If you need the transparency to survive, export as PNG or WebP. If you are exporting to JPG anyway, choose the background color deliberately rather than accepting the default.
What should I put in the middle of a LinkedIn banner?
Nothing important. At 1584 by 396 the banner is a wide strip, and your profile photo overlaps the left-of-center area on desktop while mobile crops the sides. Keep text and logos off-center and away from the edges, and check the result at both the full width and a narrow crop before you upload.
Can I make one image for every platform at once?
Not in one click. Each export targets one preset, because the framing decision is genuinely different for each shape: what works cropped to a 1:1 square rarely works cropped to a 4:1 banner. Reposition the subject per preset and export each one, which takes a few seconds and produces images that actually fit.
Do my images get uploaded to be resized?
No. The image is decoded, framed, and re-encoded on a canvas in the page, so an unpublished campaign asset stays on your device. The only network call is a credit counter carrying the tool name.