The common 2026 post sizes are: Instagram square 1080×1080 (1:1), Instagram portrait 1080×1350 (4:5, the tallest feed post), Instagram Story / Reel 1080×1920 (9:16); Facebook feed / link 1200×630 (~1.91:1); X (Twitter) in-stream 1600×900 (16:9); LinkedIn link post 1200×627 (~1.91:1); Pinterest standard pin 1000×1500 (2:3); and a YouTube community post 1080×1080 (1:1). A width of 1080 px is still the most common standard, and vertical 4:5 and 9:16 formats get the most screen space on mobile. This tool locks the canvas to each of these and exports a pixel-perfect PNG at the exact size. These are current best estimates — platforms change specs without notice, so verify on your live account.

It is a lightweight, popular design apps-style multi-platform post maker that runs entirely in your browser with no signup, no account and no watermark. You get preset platform sizes, editable starter templates, text / shape / emoji / image layers with drag-resize-rotate, solid / gradient / pattern / photo backgrounds, and a pixel-perfect PNG export. It is deliberately simpler than popular design apps — there is no cloud library, no stock-photo search, no team sharing and no AI generation — but everything is local and private, and it covers the core job of making a well-sized, on-brand post fast. Your design never leaves the device.

Privacy is structural. The post is drawn on an HTML canvas in your browser and the PNG is produced locally with canvas.toBlob — there is no server, upload, database or logging in the processing path, and no CDN. When you add a background or layer photo, the browser creates an in-memory object URL and draws straight from it; that URL is revoked automatically when you replace the image, delete the layer, load a template, reset, or leave the page, so nothing lingers. The tool works offline once cached, and closing the tab discards your design. The only optional network use anywhere on the site is consent-gated advertising, which never sees your images.

This is a design and layout tool with no access to your social accounts, so it cannot post, schedule or publish — you export a PNG at the chosen size and upload it in each app through the normal flow. Templates are editable starting points rather than finished brand assets. Switching size re-flows your layers vertically to keep the layout, but a big change in aspect ratio (square to a wide banner, say) can crowd elements, so give it a quick tidy. The decorative “stickers” are LOCAL graphics (emoji rendered as text plus simple shapes), not any platform’s interactive stickers, and text uses your device’s system font stacks only, so type can look slightly different on another machine and platforms re-compress uploads so colours may shift.