Perfect wallpapers across every monitor — dual, triple, ultrawide, or mixed-resolution setups. 3840×1080, 5120×1440, dual 4K, and beyond. Pixel-perfect PNGs, mixed DPI supported. Works on Mac, Windows, and Linux. No install. No accounts. No uploads.
Your images never leave your device
Define any number of monitors with exact pixel dimensions, positions, and DPI scale factors. Built for mixed-resolution and mixed-DPI setups — dual 1080p, dual 4K, triple 1080p, 3840×1080, 5120×1440 ultrawide, and beyond.
See exactly how your wallpaper will be split across monitors of different resolutions in real time. Drag monitors to reposition them on the fly and the preview updates instantly.
Get all your monitor slices in a single ZIP archive — clearly labeled monitor-1.png, monitor-2.png, and so on.
Choose between Fill (crop to cover, no letterboxing) or Fit (letterbox to preserve the full image).
Instantly load common configurations: Dual 1080p, Dual 4K, Triple 1080p, plus ultrawide (3840×1080) and super-ultrawide (5120×1440). Or build a completely custom layout from scratch. → See all supported setups
All image processing happens on your machine using the Canvas API. Your wallpapers are never uploaded anywhere — not even temporarily. The privacy-first multi-monitor wallpaper tool. → See our privacy FAQ
Whether you're running a dual monitor setup, a triple monitor setup, an ultrawide, or a mixed-resolution rig with different DPIs, SliceScreen has you covered.
Two 1080p, two 1440p, or any combination — including mixed resolutions and DPIs. Covers the most common multi-monitor configuration perfectly.
Center plus two flankers, or three identical panels. 5760×1080 and 7680×1440 presets included for instant triple-monitor wallpaper splitting.
3840×1080 (32:9), 5120×1440 (32:9), 3440×1440 (21:9) — pick a preset or go fully custom for your ultrawide setup.
The hardest case for native OS tools. SliceScreen crops each slice at the exact pixel dimensions you specify — no stretching, no guessing.
Enter each monitor's resolution and position. Use a preset or drag to arrange them to match your physical desk.
Drop a JPEG, PNG, or WebP. The live preview instantly shows how it maps across your virtual desktop.
Hit the button — the app crops each monitor's slice in the browser and packages them into a ZIP in seconds.
SliceScreen is a purely client-side app. All cropping happens in the browser via the Canvas API — no files are ever transmitted to any server. There's no backend, no storage, and no account required.
Use a wallpaper whose total pixel width matches both monitors combined — e.g., 3840×1080 for two 1080p monitors. SliceScreen takes any panoramic image and crops it into per-monitor PNGs you can apply individually, which avoids Windows' "Span" mode quirks with mixed resolutions.
SliceScreen handles mixed resolutions and mixed DPI natively. Configure each monitor's exact pixel dimensions and SliceScreen crops a precise slice for each one — no stretching or letterboxing forced on you. See the supported setups for more.
Yes. Presets exist for 3840×1080, 5120×1440, and dual 4K. You can also build custom layouts at any aspect ratio. Check the setups section for the full list.
Yes — open any monitor in the app and click Add bezel. The image will continue conceptually behind the bezel, so straight lines stay straight across the gap between monitors (the same approach NVIDIA Surround and AMD Eyefinity use). Bezels can be entered in monitor pixels or millimetres, symmetric or per-side.
Measure the visible black border on each side with a ruler — most modern monitors have ~5–10 mm side bezels and a thicker chin (15–25 mm). In SliceScreen, switch the bezel input to mm and type the values in directly; the app converts them to pixels using each monitor's PPI. If you only know your monitor model, manufacturer spec sheets list bezel widths under "border" or "frame thickness".
No. All processing happens in your browser via the Canvas API. There's no backend, no uploads, no accounts — your image never leaves your device.
Yes — SliceScreen runs entirely in your browser. The split PNGs work with whatever wallpaper system your OS uses: macOS, Windows 10/11, GNOME, KDE, and so on.
SliceScreen is a free, browser-based multi-monitor wallpaper splitter — no install, no account, no uploads. SplitWall is a similar online tool but doesn't publish a privacy guarantee, and its cropping flow is less explicit about mixed-resolution / mixed-DPI setups. DisplayFusion is a paid Windows-only desktop app aimed at power users. MultiWall is free but requires a Windows install. If you're on Mac or Linux, want a tool that handles mixed-DPI rigs precisely, or simply don't want to install anything, SliceScreen is the closest fit. → Open the app
JPEG, PNG, and WebP as input. Output is always PNG so quality is preserved on solid colors and text.
No sign-up. No install. Just open and go.
Open SliceScreen — it's free