4K Images

Runs 100% in your browser

4K Wallpaper Maker — Turn Any Photo into a Wallpaper

Pick a screen size, choose how the photo fills it, and get a wallpaper at exactly that resolution. Enlarging uses the same edge-aware engine as the 4K upscaler.

Settings

Apply settings to

Settings apply to every image in the queue.

Screen size
Screen size

Fit
How the photo fills the screen

Crop to fill cuts the parts that do not fit; drag the focus point to choose what stays. The other two keep the whole photo.

Detail and output
35

Used when the photo is enlarged (EASU + RCAS). 0 turns sharpening off.

Clean noise & JPEG artifacts
Format
92

Queue

Images you add appear here.

    Keyboard shortcuts

    ?
    Show this list
    U
    Create all
    D
    Download the selected image
    Z
    Download all as ZIP
    + / − / 0
    Zoom in, out, fit (in a viewer)
    Arrow keys
    Pan when zoomed (in a viewer)
    T or hold Space
    Show the original (in a viewer)

    Shortcuts are off while you type in a field.

    How it works

    Three steps, all on your own device.

    1. Step 1: Add photos

      Drop, paste or pick up to 10 JPG, PNG, WebP or AVIF photos. They stay on your device.

    2. Step 2: Pick a screen and a fit

      Desktop, ultrawide, phone, tablet or a custom size; crop to fill with a focus point, or keep the whole photo on a blurred or solid background.

    3. Step 3: Download

      Each wallpaper is rendered at the exact size, as JPG or PNG, one by one or as a ZIP.

    Questions and answers

    Will a small photo look sharp as a 4K wallpaper?
    The result depends on the source. When a photo has to be enlarged, the queue says by how much (for example “enlarged ×2.4”), and the tool uses edge-aware upscaling and adaptive sharpening rather than a plain resize. It cannot invent detail the photo does not have, so the larger the enlargement, the softer fine textures look.

    What does “Crop to fill” cut off?
    The parts of the photo that do not fit the screen shape. The preview shows the kept area as a frame over your photo; drag the focus point, or move it with the arrow keys, to choose what stays. Each image keeps its own focus point.

    How does the blurred background work?
    The whole photo stays visible, and the empty space around it is filled with a blurred, slightly darkened copy of the same photo. The strength slider sets how blurry it is.

    Which size should I pick for my screen?
    Choose the resolution of your display: on Windows it is under Settings → Display, on a Mac under System Settings → Displays. For phones and tablets, the sizes listed match common screens; if yours differs, use a custom size.

    Can I make wallpapers for several photos at once?
    Yes. Add up to 10 photos; the selected size applies to all of them, each keeps its own focus point, and you can download them together as a ZIP.

    Tools

    More free image tools

    Every tool runs in your browser. Nothing is uploaded.