Automated cover scaling
This tool locks the target dimensions to exactly 1080×1920 pixels (a vertical 9:16 aspect ratio) and forces “cover” mode. It scales your uploaded images proportionally until both dimensions meet or exceed the target, then crops the excess from the center. This guarantees a perfectly sized full-screen vertical frame without any stretching or letterboxing, ready for Instagram Stories, Reels, TikTok, or YouTube Shorts.
Local batch processing
The entire resizing pipeline runs directly in your browser using a background Web Worker pool. You can drop hundreds of images into the queue at once to prepare content for a social media campaign. The tool will process them in parallel without uploading anything to a remote server, keeping your original files private.
Output format and downloads
Processed files retain their original format (JPG, PNG, or WebP). The tool appends the 1080×1920 dimensions to the original filename (e.g., story-1080x1920.jpg). You can download the resized images individually from the list or package the entire batch into a single ZIP archive.