Social media image sizes – reference with sources
This overview lists the dimensions, the ratio and – where available – the official source for each format. Where a platform publishes no dimensions, that is stated explicitly.
For plain backgrounds (product photos, scans). No model, ready instantly.
Pick a mode, then click in the image or drag with the mouse held down. The connected area there is corrected.
Transparent cut-out: set Background → Transparent. JPEG cannot store transparency.
For web developers
Applies to chat and story templates. Without a custom choice, the template default is used.
Page settings
The images are processed entirely in this browser. Nothing is uploaded – you can verify this yourself in the network panel of your browser developer tools.
Images and order
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No images yet. The order in this list becomes the page order of the PDF.
How to use this reference
This page is the reference, not a tool: every image size MockupSizer knows, in one table, with the ratio, the platform and a note on where each value comes from. It is meant to be the page you keep open while you prepare assets – a place to look a figure up, not a list you scroll past.
Sizes change quietly. Platforms revise their specifications without announcing it, and a number that was correct last year can be wrong today. That is why every entry names its platform and its format instead of presenting one global table as permanent truth, and why the table marks the values that are de-facto standards rather than published specifications – worth knowing before you build a template around them.
From any row you can jump straight into the tool that produces that crop: the Story resizer for vertical formats, the feed post tool for square and portrait feeds, and the OpenGraph maker for the 1200 × 630 card that appears when a link is shared. Each link opens a tool with the format already selected, so the table is the shortest route from a number to a finished file.
Image sizes at a glance
All 24 formats on this site with dimensions and aspect ratio. Clicking a format opens the matching tool with that setting preselected.
| Format | Dimensions | Ratio | Safe zone |
|---|---|---|---|
| Instagram Post (1:1) | 1080 × 1080 px | 1:1 | – |
| Instagram Feed Post | 1080 × 1080 px | 1:1 | – |
| Instagram Story (9:16) | 1080 × 1920 px | 9:16 | – |
| Instagram Portrait (3:4, grid) | 1080 × 1440 px | 3:4 | – |
| Instagram Reel Cover (420 × 654) | 420 × 654 px | Reel | – |
| Facebook Feed Post (4:5) | 1080 × 1350 px | 4:5 | – |
| Facebook Page Cover (851 × 315) | 851 × 315 px | Page | – |
| Facebook Group Cover (1640 × 856) | 1640 × 856 px | – | |
| Facebook Link Preview (1.91:1) | 1200 × 630 px | Link | – |
| Pinterest Standard Pin (2:3) | 1000 × 1500 px | 2:3 | – |
| Web & Blog | |||
| OpenGraph / Blog Share Card (1200 × 630) | 1200 × 630 px | OG | – |
| LinkedIn Post (hook checker) | 1200 × 1200 px | Feed | – |
| LinkedIn Profile Banner (4:1) | 1584 × 396 px | 4:1 | – |
| LinkedIn Company Page Cover (1512 × 256) | 1512 × 256 px | Page | – |
| LinkedIn Link Preview (1200 × 627) | 1200 × 627 px | Link | – |
| WhatsApp Chat Message | 800 × 900 px | Chat | – |
| WhatsApp Status (9:16) | 1080 × 1920 px | 9:16 | – |
| Apple | |||
| Apple iMessage Chat | 800 × 900 px | iOS | – |
| Telegram | |||
| Telegram Chat | 800 × 900 px | Chat | – |
| Signal | |||
| Signal Messenger Chat | 800 × 900 px | Chat | – |
| YouTube | |||
| YouTube Thumbnail (16:9, 1280 × 720) | 1280 × 720 px | 16:9 | – |
| YouTube Shorts Cover (9:16) | 1080 × 1920 px | Shorts | – |
| TikTok | |||
| TikTok Video / Cover | 1080 × 1920 px | 9:16 | – |
| X (Twitter) | |||
| X (Twitter) Post | 1200 × 675 px | Feed | – |
Where available, the dimensions come from the official documentation of the respective platform. Where a platform publishes no dimensions, the value is marked as a convention – see the page for that format.
Related tools
Frequently Asked Questions (FAQ)
Four questions about this table – where the numbers come from, and what to do when a platform changes one.