Browser-only wallpaper cropper
Library thumbnails stay lightweight. The full-resolution file loads only after you select a wallpaper for editing.
Editing and export happen in this browser. Recent history stores names and dimensions only, never image pixels.
3840 × 2160
Batch export
Select up to four common screen sizes and download them in one run.
Recent local exports
Exports made in this browser will appear here.
Wallpaper sizing guide
FrameHalo combines exact pixel sizes with a live crop preview, so you can prepare a wallpaper for the screen you actually use without sending a personal image to an editing server.
Start with common 4K, QHD, Full HD, ultrawide, phone, tablet, lock-screen, and square presets, or enter a custom width and height.
Drag the preview or adjust horizontal position, vertical position, and zoom before exporting the final full-resolution crop.
Save JPEG, WebP, or PNG output locally, or prepare up to four device sizes in a batch while keeping the processing in your browser.