
Responsive Picture Tag Generator
Output
🛠What this tool does
The Responsive Picture Tag Generator helps Blogger users create SEO-friendly, responsive <picture>
tags for images hosted on Blogger.
By default, Blogger adds fixed-size image URLs in posts, which often leads to SEO and performance issues such as:
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🔺"Improve image delivery"
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🔺"Largest Contentful Paint element"
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🔺"Properly size images"
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🔺"LCP request discovery"
- 🔺"Image elements do not have explicit width and height"
This tool solves those problems by automatically generating a <picture>
tag that serves:
✅ Smaller images on mobile
✅ Larger images on desktop
✅ A properly sized fallback image — all using the modern WebP format.
✅ Why use it
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Optimizes your images for faster loading across devices.
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Helps improve Core Web Vitals scores (especially LCP).
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Fixes common SEO warnings from tools like Google PageSpeed Insights.
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Keeps your blog lightweight and user-friendly — without any coding.
How to use this tool
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Prepare your image:
Make sure your original image size is around w1200-h675 (for standard SEO) and is in WebP format for better performance. -
Upload your image in Blogger:
In your Blogger post, add your image as usual. -
Switch to HTML view:
Copy the image URL from the<img>
tag. -
Paste the URL into this tool under Image URL.
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Adjust:
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Alt Text (for SEO and accessibility)
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Title (optional)
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Mobile, Desktop, and Fallback sizes (default values are provided).
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If you are using a different size:
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First, publish the post with uploading image through default method with noindex.
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Check the post URL in PageSpeed Insights.
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See which image sizes are requested for mobile and desktop.
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Use those sizes in this tool.
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Choose the Load Mode:
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Fetch Priority (High): if the image is at the very top of your post.
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Lazy Loading: for images further down.
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Click GENERATE.
-
Copy the generated
<picture>
tag. -
Replace the old
<img>
tag in your post’s HTML view with this new<picture>
tag. -
Remove noindex from your post and update/publish.
💡 Extra tips
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Always keep your original uploaded image around w1200-h675 in WebP for best quality and performance.
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Use descriptive Alt Text to help Google understand your image.
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Regularly test your important posts in PageSpeed Insights to stay optimized.
By following these steps, your images will:
✔ Load faster
✔ Look sharper on every device
✔ Pass SEO audits more easily
✔ Improve user experience and rankings
This tool makes the whole process quick and beginner-friendly — perfect for Blogger users who want professional results without technical hassle.