Midjourney has recently pushed “image generation” a big step forward: on the web, you can upload an image and make localized edits directly with the Midjourney Image Editor, instead of repeatedly using /imagine and relying on luck. This article explains—based on features that are actually available—where to access the Midjourney Image Editor, common operations, and key considerations, so you can get started right away.
What the Midjourney Image Editor Can Do: From “Editing Parts” to “Expanding the Canvas”
The core value of the Midjourney Image Editor is bringing “extend, crop, repaint, add elements, change elements” into a single interface. You can use area selection to constrain the scope of edits, then use text prompts to guide the change direction, avoiding the whole image being pulled off course.
In the web interface, a common approach is to enter a new workspace via “Edit,” then use “Erase” and “Restore” to process specific areas. Combined with adjusting size/aspect ratio to expand the canvas, it’s well-suited for needs like filling in backgrounds, refining composition, and extending poster whitespace.
How to Use It: Upload — Select Area — Prompt in Three Steps
When using the Midjourney Image Editor, first upload a local image or enter edit mode from your history, then use the eraser tool to paint over the area you want to change. After masking, clearly describe in the prompt “the element to add/replace, materials, lighting, and style,” then run generation.
A recommended prompt format is to provide “object + location + style constraints” together. For example, type in the erased area: “add a small wooden chair, same perspective, soft window light, keep original style”. If you want to minimize changes elsewhere, use fewer global style terms and focus the description on the selected area.


