Image
Image jobs that normally mean uploading a file to a stranger. Generate a QR code for a URL, some text, a Wi-Fi network or a contact card and download it, with the encoding done in the page rather than on somebody else's server.
That distinction matters more for QR codes than it looks. Many free generators route the code through a redirect they own, which means they can count every scan, and the code stops working if they go away or start charging — a genuine problem once it is printed on a thousand leaflets. A code generated here encodes your content directly and points nowhere else.
The other thing an image often needs is something taken out of it. Hiding a face, a name or an account number wants a solid box rather than a blur, because a blur or a pixelation can sometimes be reversed and a box cannot — and the saved copy is flattened, so the covering is part of the picture and not a layer someone can peel off, with the metadata dropped at the same time.
A photo can be adjusted, too — brightness, contrast, saturation, hue, sepia and blur, or a ready-made look such as mono or vintage — with the same numbers written out as a CSS filter value, so the saved picture and a stylesheet match.
And when a form says the photo must be between 20 and 50 KB, or the signature under 20, a photo can be brought to exactly that: the page searches the JPEG quality for the best picture that fits the size, crops it to the pixel size the form wants, and pads a file that comes out too small rather than making it worse.
Words can go on a picture as well: bold capitals at the top and bottom, the meme way, or a caption bar above or below it, shrunk to fit as you type and drawn in a font the page brings with it, so the picture looks the same on every device.
And a mockup can have its stand-in images made here: a box of any size with its own colours and text, saved as PNG, JPEG, WebP or SVG, or copied as a data URI so the placeholder lives inside the page with no request to a placeholder service.
A picture can also be drawn in characters: ASCII art from 8 to 400 characters wide, in a standard, detailed or block character set or your own, inverted for a dark terminal and dithered for smooth shading, ready to paste into a README or a code comment.