Practical Guide to Midjourney Web Editor’s New Erase/Restore and Canvas Expansion Features

Midjourney has recently made its web-based image editor much more “user-friendly”: you can enter editing directly from the artwork page, with tools like Erase/Restore and canvas expansion. Below, following the real workflow, I’ll explain clearly how to use Midjourney’s new features and where they’re most convenient.

What did Midjourney’s update focus on changing?

According to official channels and related reports, Midjourney’s web version has added a more straightforward “Edit” entry point, so the editing process no longer feels roundabout. Once inside, you can use “Erase” and “Restore” to fine-tune specific areas—ideal for removing unwanted elements or bringing back details deleted by mistake.

Another change is canvas expansion: you can “grow” the image outward by adjusting the size/aspect ratio, making the composition feel more complete. Overall, Midjourney is pushing the experience from “generate and only pick an image” toward “generate and still be able to edit the image.”

How to open the Midjourney Edit button on the web

First, go to Midjourney’s web gallery (the artwork page or your personal library) and open the image you want to work on. You’ll see the new “Edit” button—click it to jump into the improved editing interface.

If you previously generated images mainly in Discord, this step is essentially moving post-processing to the web. The biggest advantage of this entry-point design is that you can do local touch-ups directly on the image without having to use additional external software.

How to use Erase and Restore for natural-looking edits

In the editor, select “Erase” and brush over the areas you don’t want—great for cleaning up background clutter, removing extra text-like elements, or fixing edges. When erasing, it’s recommended to start with a small brush, handle the edges first, then expand the area to avoid wiping out key details in one go.

No need to panic if you make a mistake—switch to “Restore” and paint back the parts you need. In practice, Midjourney’s Erase/Restore combo works more like local masking: the more restrained the changes, the more natural the final transitions.

Expand canvas and adjust ratios: turn a composition from “just okay” into “good-looking”

When you need a wider banner cover or a taller vertical poster, you can use the canvas expansion options to enlarge the canvas by adjusting the size and aspect ratio. Put simply, you first enlarge the boundaries, then let the image content extend outward to fill space that wasn’t generated originally.

Before expanding, it helps to be clear about the intended use: e-commerce hero images typically need blank space for copy, while avatars and wallpapers care more about keeping the subject centered. Midjourney’s canvas expansion is better for “adding space and adjusting layout” than for completely changing the style.

Before using the Midjourney web editor, avoid these small pitfalls

First, if the image looks “dirty” or the edges become blurry after a local erase, it’s usually because the painted area was too large and the transition wasn’t refined enough—go back and use a smaller brush in multiple passes for a steadier result. Second, expanding the canvas can shift the narrative focus of the image; after expanding, remember to check whether the subject has been pulled off-center and whether there’s enough blank space.

Also, even if you generate in private messages, your work may still appear in Midjourney’s Gallery; if you have privacy requirements, you’ll need to understand the public/private rules for different subscription plans in advance. Think through these details beforehand, and Midjourney’s new editor can truly save you time.