Merge Images Online

This composite creation tool combines multiple uploaded images into single files through horizontal concatenation, vertical stacking, or grid arrangements useful for comparisons, collages, or documentation. The merger accepts various image formats (JPEG, PNG, GIF), arranges them according to user-specified layouts, applies alignment and spacing rules, and generates unified output images. Users upload multiple files, drag-drop to reorder positioning, configure spacing between images, and download merged results. Resizing options scale images to matching dimensions before merging ensuring visual consistency, border addition separates distinct images with visible dividers, and background color selection fills gaps in uneven layouts. Batch processing merges multiple image sets simultaneously, template saving preserves layout configurations for reuse, and format conversion handles output optimization. Applications include creating before/after comparison images for portfolios, assembling product photo grids for e-commerce listings, generating documentation screenshots showing multiple UI states, or building social media collages combining event photos. The tool preserves image quality without unnecessary compression during merging.