Social Media Image Compressor

Social Media Image Compressor re-encodes a picture until it lands under a byte budget, working out the quality setting for you rather than leaving you to guess at a percentage.

The platform entries are byte budgets written into the tool itself — X/Twitter 5 MB, Facebook 4 MB, Instagram, LinkedIn and Discord 8 MB, WhatsApp 16 MB — and a target given in KB overrides whichever is selected, which is the field to reach for if one of those figures stops matching reality. To meet the budget it bisects the quality range over as many as eight genuine encodes and keeps the largest result that still fits, so the size reported is the size of the download. Pixel dimensions are left untouched, and when even the lowest quality it will try comes out too heavy it says so and tells you to cut the dimensions instead. Choosing PNG output skips the search entirely, because PNG has no quality dial to bisect.

Every encode runs on your own hardware inside the browser, the discarded probes included. The picture is not uploaded, and because the output is re-encoded from a canvas, the original EXIF block — camera and GPS fields with it — does not carry through into the file you get.

Getting a photo under a messaging app's attachment ceiling, shrinking a screenshot before it goes into a post, hitting an exact KB figure a form insists on, and establishing that an image needs resizing rather than more compression.

Also known as: compress for twitter · shrink photo for discord · whatsapp photo compressor · social media photo optimizer · reduce social image size · make social image smaller