Advanced Image Editor

• Adjust brightness, contrast, saturation, vibrance, temperature, tint, hue, sharpening, blur, vignette, sepia and black and white. Auto stretches the brightness range of the photo, B&W removes colour, and Pop adds contrast and colour.
• Filters: ten presets (such as Vintage, Warm, Cool, Fade and Noir) shown as thumbnails of your own photo. A filter is just a set of adjustment values, so you can fine-tune it afterwards.
• Crop freely or to 1:1, 4:5, 4:3, 3:2, 16:9, 9:16 or the original ratio, and rotate left or right or flip the photo.
• Text with your own wording, several lines, eight fonts, size, colour, bold, italic, alignment, outline and drop shadow.
• Shapes: rectangle (with rounded corners), ellipse, triangle, right triangle, diamond, pentagon, hexagon, star, heart, arrow, cross, speech bubble and line. Each has a fill and an outline; polygons can have 3 to 12 sides, stars 3 to 12 points, and the star, arrow and cross have an adjustable thickness.
• Draw freehand with a brush of any colour, size, opacity and softness, and an eraser that removes strokes.
• Images: add another picture, such as a logo with a transparent background, as a layer.
• Layers: select, move, resize and rotate on the image; hide, lock, reorder, duplicate or delete; change opacity and rotation precisely.
• Undo and redo up to 50 steps, and a compare button that shows the original while you hold it.

The photo is always the bottom layer. Everything you add (text, shapes, drawings and images) sits above it in the order shown in the Layers panel, with the top of the list drawn last.

• Select a layer by clicking or tapping it on the image, or in the Layers panel.
• Move it by dragging. With a keyboard, the arrow keys nudge it 1 pixel, or 10 with Shift.
• Resize with a corner handle. Text and images keep their proportions; shapes stretch freely unless you hold Shift.
• Rotate with the round handle above the selection. It snaps to straight angles, or to 15 degree steps with Shift.
• Delete with the bin in the Layers panel or the Delete key. Lock a layer to stop it moving by accident.

Adjustments and filters change the photo only. Text, shapes, drawings and added images keep their own colours.

In Crop, drag the box or its corners, or pick a ratio to get the largest centred box of that shape. Apply crop makes the change; until then you can reset. Rotating turns the photo by 90 degrees and flipping mirrors it. Your layers move with the photo so they stay in the same place on the picture; text is never mirrored, so it stays readable. Layers that end up outside a crop are kept but are no longer visible in the picture.

Each drawing is its own layer. Draw on the image with a mouse, pen or finger. The eraser only removes strokes from drawing layers; it never erases the photo, text or shapes. Use New drawing layer to keep separate drawings you can hide or reorder independently, and Clear drawing to remove every stroke from the selected one. Brush sizes are measured in pixels of the full-size image, so the same size looks thinner on a large photo.

• PNG is lossless and keeps transparency, but photos give large files.
• JPG gives small files for photos, with a quality setting. Transparent areas are filled with white.
• WebP gives small files and keeps transparency; some older software cannot open it. If your browser cannot save WebP, the editor tells you instead of saving a file in the wrong format.

You can set the output width; the height follows so the picture is not stretched. The download is created by the same drawing code as the on-screen preview, so what you see is what you get. At zoom levels where the preview is shown smaller than the image, effects that work on neighbouring pixels (sharpening and blur) are calculated on the smaller preview, so very fine detail can look slightly different in the file.

Metadata such as EXIF and GPS location is not included in the downloaded file.

On small screens the tools sit along the bottom and each one opens a panel above them; tap the same tool again to close it and see more of the picture. Drag with one finger to move layers or the view, and pinch with two fingers to zoom. The download options open as a sheet from the bottom.

• Very large photos are reduced to about 16 megapixels when opened, because browsers (Safari on iPhone in particular) cannot hold larger canvases. The editor tells you when this happens.
• Work is not saved between visits. Download before closing or reloading the page.
• There is no selection or masking, so adjustments always apply to the whole photo.
• Fonts are limited to ones available in your browser, so the same font can look slightly different on another device.

The editor runs entirely in your browser. Your photo and any images you add are held in the page's memory and are not uploaded. For simpler single-purpose jobs there are dedicated tools: the Image Resizer, Crop Image (with circle and freehand crops) and the Watermark tool.