The Complete Guide to Resizing Images for Every Social Platform

Resizing images for social is the most repetitive job in content marketing. Every platform wants something different, every upload comes from a different source, and getting it wrong shows up immediately in the feed.

The two ways to resize

In a design tool (Canva, Photoshop, Figma): full control, but slow for batch work. In a browser-based resizer like Gitsize: instant, no account, supports every preset out of the box, and your file never leaves your device.

The right dimensions for each platform

Instagram: 1080×1080 (square), 1080×1350 (portrait), 1080×1920 (story). LinkedIn: 1200×627 (post), 1584×396 (banner), 400×400 (profile). YouTube: 1280×720 (thumbnail), 2560×1440 (banner). Facebook: 1200×630 (post), 851×315 (cover). TikTok: 1080×1920. Pinterest: 1000×1500. Twitter/X: 1600×900 (post), 1500×500 (header).

Bookmark the complete 2026 spec page for the rest.

The workflow that scales

Pick your hero image at the largest dimension you'll need (usually 2560×1440 for YouTube or 1920×1080 for everything else). Resize once to each platform target, save with platform names in the filename, and upload. Gitsize handles the batch step — pick multiple presets, download a ZIP, done.

Ready to resize? Use GitSize free — no signup, nothing uploaded, your image stays on your device.