Social Media Image Size Guide
Image canvases for six platforms with source checks, draft status and placement-specific limits.
A reference guide, not an upload validator. Draft dimensions are planning canvases, not confirmed platform requirements.
How to use the reference
Select the actual placement, review its source and date, then test text and logos in desktop and mobile previews. Keep draft measurements separate from confirmed facts.
The synthetic YouTube example uses a 3840×2160 video thumbnail canvas (16:9). Mobile and desktop image limits are separate; they are not video-file limits.
This guide does not predict reach, engagement or ranking.
TOOL GUIDE
What does the image size guide speed up?
This guide shows source checks and draft status for image canvases across six platforms. The recommended canvas, the file limit, and the placement context are kept separate. Rows without a verified source are not presented as current platform requirements.
From one catalog it produces the selected reference, the exact mathematical ratio, a proportional canvas, and a sourced JSON report. It does not upload files or test image acceptance, compression, or real platform cropping.
How to use it
- Choose the platform first, then pick the matching placement among that platform's content types.
- Review the source check date and the draft status. If a file limit is not verified, do not treat it as an acceptance limit.
- Before exporting, check the primary source and the real publishing preview, and review text and logos across devices.
When to use it
- Prepare platform-specific creatives for Instagram, LinkedIn, YouTube, and WhatsApp.
- Avoid cropping and resolution loss when one campaign runs across several networks.
- Standardize design briefs within an agency or an in-house team.
This tool processes supplied data in your browser. Text and inputs are analyzed on your device without being sent to a server.
Frequently asked questions
How often do platform dimensions change?
Social networks make small updates from time to time. Check current dimensions regularly, especially for ad and cover images.
Can I use the same image on every platform?
You can reuse the core visual idea, but ratios and safe areas usually differ, so a platform-specific variation is the safer choice.
Which format should I choose?
JPG usually works better for photo-heavy creatives, PNG for text and sharp-edged designs, and video for motion content where the platform supports it.