Social Media

Common social image sizes these tools target

Crop, or pad, or slice

Three of these tools solve the same mismatch in different directions, and picking the wrong one is what produces a feed of beheaded portraits. Cropping keeps the pixel density and loses whatever falls outside the frame, which is right when the subject sits in the middle and there is room to lose. Padding keeps the whole image and fills the remainder, usually with a blurred enlargement of the photo itself, which is right for a composition that cannot be cut, such as a landscape or a screenshot. Slicing is for a picture that is genuinely wider than any single frame: the carousel generator cuts it into consecutive slides that align at the seams as a viewer swipes.

Where a crop is unavoidable, the focal point is the whole game. A centre crop is what every automatic system does and is wrong for most photographs of people, since a face is rarely centred. The social cropper lets you place the crop before it commits, and portrait 4:5 is worth preferring on Instagram over square, because it occupies the most vertical space the feed allows.

What a watermark can and cannot do

A watermark deters casual reuse and credits the work when an image travels without its caption. It does not prevent theft: a corner mark crops off in seconds, and content-aware fill removes an unobtrusive one almost as fast. The honest trade is between a mark small enough to leave the image usable and one large enough to be inconvenient to remove, and a tiled, rotated, semi-transparent mark across the whole frame is the version that actually resists removal, at an obvious cost to the picture. The watermarker supports nine fixed positions or a tile, with size, opacity and rotation.

For proof of authorship, a watermark is weaker evidence than the original file. Keep the raw camera file with its metadata intact somewhere private: it carries the capture time and device, which is far harder to fabricate than a visible mark. That is a reason to be deliberate about metadata rather than careless with it, and to strip it only from the copy you publish, using the EXIF remover on the export rather than on the original.

Why these run in the browser

All five tools decode the image, draw it to a canvas at the target size, and encode the result on your device. Nothing is uploaded, which matters because the input to a social image tool is usually a photograph, and a photograph out of a phone carries the time it was taken and often the coordinates. Handing that to a web service to add a watermark means handing over the location first.

The practical benefits are the same ones any client-side tool has: no file size limit beyond what the tab can hold, no queue, no watermark of the tool own, and the export appears immediately because nothing travelled. Sizes are read from a preset table that records the pixel dimensions each platform actually serves, so the output does not need to be re-scaled at the far end, which is where a soft, over-compressed upload usually comes from.

Frequently asked questions

What size should an Instagram post be?

Use 1080 x 1350 for a portrait post, which occupies the most vertical space the feed allows, or 1080 x 1080 for a square. Stories and reels are 1080 x 1920. Uploading at these exact dimensions avoids a re-scale on the platform side, which is the usual cause of an image looking softer after posting than it did on your screen.

Why does my image get cropped when I post it?

Because the platform crops to the ratio its layout expects, and it crops from the centre by default. An image at 16:9 posted where 4:5 is served loses the top and bottom regardless of what is in them. Crop it yourself first with a focal point you choose, or pad it onto a matte at the target ratio so nothing is cut at all.

Should I crop my photo or add a matte?

Crop when the subject is central and the edges are expendable, since cropping keeps full resolution in the part you keep. Add a matte when the composition cannot survive a cut, such as a landscape, a screenshot or a group photo. A matte fills the leftover space, usually with a blurred version of the image itself, so the frame reads as intentional rather than as letterboxing.

Does a watermark protect my images from being stolen?

It deters casual reuse and credits you when an image travels without a caption, but it does not prevent theft. A corner mark crops off in seconds and content-aware fill removes a subtle one nearly as fast. A tiled, rotated, semi-transparent mark is much harder to remove, at a real cost to how the picture reads.

Do these tools remove metadata from my photos?

The export is drawn fresh on a canvas, so the EXIF metadata of the original does not carry into it. If you are publishing the original file rather than an export, run it through the EXIF remover instead, which strips the metadata segments without re-encoding the pixels, and keep the untouched original somewhere private.

Are my images uploaded to make these images?

No. Every tool here decodes the file, composes on a canvas and encodes the result in your browser, so the photograph never leaves your device. There is no upload queue, no file size cap beyond what the tab can hold, and no tool watermark on the output.