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Image SEO Optimizer

Compress an image and get a suggested SEO-friendly filename and alt text based on your target keywords. Runs entirely in your browser.

🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.

Choose an image to see compression results and SEO suggestions.

How the image SEO optimizer works

  1. Choose an image file and enter your target keywords.
  2. Adjust the quality slider to balance file size and visual quality.
  3. Download the compressed image, and use the suggested filename and alt text.

FAQ

How is the image compressed?

The image is redrawn onto a canvas and re-encoded at your chosen quality level using the browser's native image encoder - PNGs are converted to WebP for better compression, other formats keep their original type.

Why does filename and alt text matter for SEO?

Search engines can't "see" an image, so descriptive filenames and alt text (rather than IMG_1234.jpg) help image search and accessibility tools understand what's in the picture.

Does compression reduce image quality noticeably?

At 70-85% quality, most photos look visually identical while file size drops significantly. Lower the quality slider further for smaller files at the cost of visible compression artifacts.

Is my image uploaded anywhere?

No - compression happens entirely in your browser using the Canvas API. The image file never leaves your device.

How we compare

Feature Online Tool Store Manual image editor export Cloud image CDN
Compression + SEO suggestions together
No install or account required
Image never leaves your device

Useful for quickly prepping blog or product images before upload - smaller files load faster and rank better in image search.

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Embed this tool

Paste this on your own site — it stays free, and every file still stays in your visitor's browser, not yours or ours.