Social Image Composer: Resize, Crop, and Pad Social Images in Your Browser

We shipped a new free Social Image Composer in Shotomatic. Resize one image into social-ready formats for Instagram, X, LinkedIn, Facebook, YouTube, and Open Graph without leaving the browser.

Demo

What's New

• New free tool for social image sizing and export
• Preset sizes for posts, stories, covers, banners, thumbnails, and Open Graph cards
• Switch between Crop and Pad for each output frame
• Export PNG, JPEG, or WebP locally in the browser

Presets Across Major Platforms

The tool starts with platform-ready presets so you can skip hunting image dimensions before every post.

• Instagram feed, portrait, and story layouts
• X post and profile header formats
• LinkedIn feed, profile cover, and company cover sizes
• Facebook post, page cover, group cover, and event cover formats
• YouTube thumbnail, Shorts, and channel banner sizes
• Open Graph and generic social card ratios

Frame Each Variant the Right Way

Different targets need different framing. The editor lets you adjust each preview separately instead of forcing one crop across everything.

• Choose Crop to fill the frame edge to edge
• Choose Pad to preserve more of the original image
• Tweak zoom and pan per preset
• Pick neutral, blurred, branded, or custom pad backgrounds

Fast Export Workflow

Current workflow and guardrails:

• PNG, JPEG, and WebP export options
• Up to 50 MB input size
• Download one preset at a time from the preview set
• Local-only processing with no upload step

Try It

Open the tool at Social Image Composer.
Browse all utilities on the Tools page.