A caption has to be readable before it can be funny: heavy white letters with a hard black keyline, sized against the picture and wrapped so that nothing runs off the edge. Bring your own photograph, or start from a blank card, then type into the two fields and watch the picture change as you go.
Your own photograph is the usual case. Under the drop zone is a shelf of eight copyright-free pictures to caption instead, along with four blank cards this page draws on the spot for when the words are the whole picture.
Area 1 and Area 2 each have a rectangle on the picture, and the lettering wraps and shrinks itself to fit whichever rectangle you put it in. Drag them wherever the words belong; on the copyright-free pictures that have a white space painted in for them, they start there already. Each area picks its own colour and its own size, so a caption on the dark half of a picture and one on the light half need not be the same. The face and the capitals are shared.
One file, captioned and compressed in the same pass. Nothing is drawn into the picture until you ask for it, so a caption you change your mind about costs you nothing.
Step by step, with screenshots: How to put a caption on a picture
Often, and there is a checkbox for it, but it is off to begin with. Heavy capitals are the convention the format grew up with and they stay legible when the picture is a thumbnail on a phone. They are not always the joke, though, and a tool that silently rewrote what you typed would be the wrong way round. Tick the box and the words are shouted; untick it and your own capitals come back exactly as you typed them.
Not one you get from here. This page works on the picture you bring and on the blank cards it can draw for you, and it hosts no library of frames or stills. Whether you may caption a picture you already have is a question between you and whoever owns it.
It wraps onto a second line, and a third, and the lettering shrinks until the whole block fits inside the picture. Four lines is the limit: past that it keeps shrinking rather than adding another, because five lines on a photograph is a paragraph rather than a caption.
Yes, and that is arranged rather than lucky. Where the lines break is decided once, by one piece of code, and both the picture on screen and the file you download are handed the same answer. Neither of them works it out for itself.
No, which is why they are called Area 1 and Area 2 rather than top and bottom. Each has a rectangle on the picture from the moment you drop one in, with handles at its corners. Drag it, or pull a corner, and the words follow as you go: a narrow rectangle wraps them onto more lines and shrinks them until they fit, so the shape you drag is the shape you get. Two of the copyright-free pictures have a white space painted in for the words, and on those the rectangles start on it.
There are nine, from poster faces to a typewriter. Anton is the default, a free face this page loads for you. The one most people picture is Impact, which is offered as well, but Impact ships with Windows and macOS and is missing from Android, iOS and most Linux, where a caption asking for it quietly comes out in a plain sans instead.
In your browser, on a canvas, before anything is sent. The file that goes up to be compressed already has the caption in it, so the lettering is part of the picture rather than something laid over it afterwards.
Free Online Image Optimizer