The problem we solve
Social platforms do not share one “correct” image size. A Facebook cover is a wide banner that phones re-frame. An Instagram feed post looks strongest as a taller 4:5 photo. Stories and Reels fill the phone under menus and buttons. Profile photos become tiny circles in comments. Shop banners, podcast covers, and livestream offline screens add even more ratios.
Charts online often mix display sizes with upload sizes, or copy numbers from another year. People then upload a link-preview graphic as a cover, or a cover strip as a feed post—and the result looks soft, cropped, or empty where it matters.
PostSize gives you a practical size for each surface, explains the safe zone in plain language, and lets you crop before you publish.
What you can do here
- Open a size guide for YouTube, Instagram, Facebook, X, LinkedIn, TikTok, Pinterest, and many more—including Etsy, Shopify, podcasts, Slack, and regional apps like LINE, WeChat, and Xiaohongshu (RED).
- Check the safe zone so mobile crops, avatar overlap, and on-screen controls do not hide your subject.
- Crop on the page with presets that match those guides, then download a file at the exact pixels to upload yourself.
- Compare related surfaces so you do not reuse one export for every slot on a profile or shop.
How to get a good result quickly
- Decide where the image will live (feed, cover, story, shop banner, or avatar)—not just “on Instagram.”
- Open that guide, or pick the matching preset in the homepage crop section.
- Keep faces and headlines inside the safe area shown for that surface.
- Download the export, then upload it in the platform’s own editor and preview once on your phone.
Need the full checklist for a specific banner? Start with a popular guide such as Facebook cover size, Instagram post size, image size converter, or Etsy listing photo size, Amazon product image size, Open Graph image size, or browse cross-platform size charts and Facebook vs Instagram post sizes from the header and footer.
Who PostSize is for
Creators, small businesses, social managers, sellers, streamers, and anyone who publishes profile or product art without a full design team. If you have ever asked “what size is a cover photo?” or watched text vanish on mobile, these pages are for you.
We are not a scheduling product, an ad manager, or an official partner of the networks we document. We focus on sizes, safe framing, and a straightforward crop-and-download step. Where a platform does not publish a single official pixel, we label practical community sizes and ask you to preview after upload.
About our size information
Platforms change layouts. Each guide shows a last-verified date so you know when we last checked the practical dimensions we recommend. Treat those numbers as working defaults for common personal, Page, shop, and creator workflows—not as a guarantee that every account type, ad product, or region matches exactly.
When a platform offers its own on-upload crop, use PostSize to arrive prepared, then confirm the live preview inside the app or site before you post.
Privacy in one sentence
Cropping is meant to stay on your device; we do not require an account to export. Read the full Privacy Policy for cookies, ads, and contact details.
Contact
Questions about a size guide, a missing surface, or this site:
Tell us which platform and which slot (for example “LinkedIn cover on mobile”) so we can help faster. For privacy requests, use the same address and say so in the subject line.