Creative gets cropped or rejected when dimensions miss platform specs. ToolYour Social Image Size Validator compares width/height to common Instagram, Facebook, LinkedIn, Twitter, TikTok, and YouTube sizes (exact or near-ratio match). Paste dimensions — it does not upload or compress images. Same route via REST and MCP (POST /api/v1/marketing-apis/social-image-size-validator).
- Free
- No signup
- Fast
- Privacy-friendly
Free · API · MCPToolYour platform
Use Social Image Size Validator three ways
The free Social Image Size Validator on this page works in your browser. The same workflow is available via REST API for apps and via MCP for Cursor, Claude, and other agents — one API key, one plan, one quota. This tool is part of the marketing-apis module under Marketing Tools.
- Free in browserUse Social Image Size Validator here — no account required.
- REST APICall from your server with
X-Api-Key. - MCP for agentsConnect Cursor or Claude to ToolYour MCP with the same key.
- 1. Get an API keySign in and open Dashboard → API Keys (works for REST and MCP).
- 2. Call or connectUse the REST API from your server, or paste the MCP URL into your agent config.
- 3. Same qualityOutput matches the free web tool across all three surfaces.
What is Social Image Size Validator?
What are common questions about Social Image Size Validator?
Do I upload the image?
No — enter numeric width and height from your design tool export.
Are specs exhaustive?
No — common feed/story/thumbnail sizes only. Always confirm current Ads Manager requirements.
Does it work for video dimensions too?
No — this checks static image width/height only. Video aspect ratio and duration specs are out of scope.
What are the key features of Social Image Size Validator?
Multi-platform specs
Match against labeled sizes per network.
How do you use Social Image Size Validator?
Enter platform, width, height
From Figma/Photoshop export info.
Resize if needed
Aim for exact or ≥90% of the target with correct ratio.
Why this tool exists
Creative that misses a platform's size or ratio spec gets cropped awkwardly or rejected at upload — and remembering exact pixel dimensions for six networks' feed, story, and thumbnail formats isn't realistic. Social Image Size Validator exists to check width/height against common specs before export.
Problems it solves
Design handoffs often export at 'close enough' dimensions that fail a strict platform check, and the failure only surfaces at upload time — after the design review is already done and the deadline is closer.
Common use cases
- Agency creative QA: checking a client's exported ad creative against Meta/Instagram/LinkedIn specs before delivery.
- In-house designer: confirming a Figma export matches the target platform's feed or story dimensions.
- Pre-launch: validating every creative size variant before a multi-platform campaign goes live.
- QA before spend: catching a wrong aspect ratio before it gets rejected (or cropped badly) by the ad platform.
Honest scope
You enter numeric width and height — this tool does not upload, preview, or compress the actual image file. Specs cover common feed/story/thumbnail sizes only, not every placement; always confirm current requirements in Ads Manager before a final export.
Where do you browse more marketing tools tools?
- Marketing Tools tools
Browse the full Marketing Tools category on ToolYour.
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Back to Category
Marketing tools
Social Image Size Validator
Creative gets cropped or rejected when dimensions miss platform specs.
Campaign workspace
Social Image Size Validator
Structured inputs and readable results — copy URLs, scan limits, and review findings without digging through JSON.
Results
WaitingResults appear here
Fill the form and run the tool — outputs are structured cards, not a raw JSON dump.