Crop, rotate and watermark an image, free

What it does, and what it does not

This is a quick image editor for everyday jobs: cropping to a set aspect ratio or to a circle, rotating in 90° steps or by a few degrees to straighten a crooked horizon, flipping, resizing by pixels or by percentage, text and logo watermarks, and finally brightness, contrast and saturation. There are no layers, no retouching and no freehand selections — a proper image editor is the place for those. What is here is the six operations most people search for, and the ones they currently open an installed program or an upload-first website to do.

The processing runs entirely in your browser, on the canvas API. Your image never reaches a server, there is no daily limit, no sign-up, and no watermark on the result — unless you put one there yourself. There is no model or runtime to download either: the page loads in seconds and editing works from the first click.

Why all those steps do not degrade the image

The editor never saves the intermediate states. Whatever you set, the result is always built from the original pixels in a single pass: the rotation, the crop and the resize touch the image once, not twenty times in a row. That is why you can step back and forth freely — after the twentieth undo the picture is exactly as sharp as it was at the first.

The preview runs the same code as the download, just at a smaller size. What you see is what you get — the watermark lands in the same place, the colour sliders do the same thing. That is not a given: plenty of editors use the browser’s CSS filters for the preview and something else for the save, and the two are not quite the same.

What people use it for

A profile picture cropped to a circle. The circle crop produces a transparent PNG, so it also looks right where the surface does not round it off for you — in a document, a slide deck or a signature.

A watermark on many images. Drop in twenty photos, set the text or the logo once, and all twenty come back carrying the same mark in a single ZIP.

A crooked or sideways photo. The 90° rotation turns a photo that landed on its side, and the fine angle straightens a horizon — and you get to decide whether every corner survives or whether no empty areas appear.

The limits, honestly

Saving is always a re-encode, so the output is not byte-identical to the input, and the original EXIF data — the GPS position, the device name, the capture time — does not come across. That is good news most of the time, but if all you want is to delete the metadata, we have a separate tool that never touches the pixels.

Browsers other than Safari cannot open HEIC photos, so we convert them to JPG on intake — an extra re-encode, and we say so on the image. We do not accept animated GIF or WebP: we could only hand back the first frame. Images may be at most 8192 pixels on their longest side, and we process at most 20 at a time — those are the browser’s canvas limits, not our decisions.

Frequently asked questions