Get your blog images ready for Google in one step. Keyword file names, the right size, WebP format and an alt text sheet.
- 100% free
- No sign-up
- Files never leave your device
- ZIP + alt text CSV
Before you upload images to a blog post, each one should have a clear file name, a sensible size and good alt text. Doing this by hand takes time. This free image SEO optimizer does it for a whole article at once. It renames, resizes and converts your images. It also removes hidden location data and flags images that are too small for Google Discover.
What this tool does in one click
- Keyword file names: IMG_2034.jpg becomes samsung-galaxy-a55-review-1.webp.
- Right size: large photos are scaled down to a width you choose.
- WebP format: smaller files that load faster.
- Privacy: camera data such as GPS location is removed.
- Discover check: warns if an image is under 1200 px wide.
- Alt text sheet: type alt text for each image and get it back in a CSV file.
How to use the image SEO optimizer
- Type your main keywordUse the keyword of the article, such as samsung galaxy a55 review.
- Add the article imagesDrop all images for one post. Each gets a numbered keyword name.
- Edit names and alt textChange any file name. Write a short alt text that describes each image.
- Optimize and downloadGet a ZIP with the new images and a CSV with names and alt text.
Our test: one article’s images
Three large photos, ready for a post
We ran three large test photos through the tool with the default settings: 1600 px max width and WebP at 82% quality. Two were 4000 px phone-size images. One was 2400 px wide. Together they weighed 6.52 MB.
The whole set dropped from 6.52 MB to 457 KB. Each image got a keyword file name and stayed at least 1200 px wide. That is the sweet spot for blog posts: sharp on big screens, light on mobile data and ready for Google Discover.
Why image file names and alt text matter
Search engines cannot see a picture the way people do. They read the file name, the alt text and the text around the image. A name like IMG_2034.jpg tells them nothing. A name like samsung-galaxy-a55-camera-sample.webp tells them a lot. Alt text also helps people who use screen readers.
| Element | Bad example | Good example |
|---|---|---|
| File name | IMG_2034.jpg | galaxy-a55-back-camera.webp |
| Alt text | image | Back of the Galaxy A55 showing three cameras |
| Width | 4000 px | 1200–1600 px |
| Format | PNG photo, 3 MB | WebP, about 100–200 KB |
Google Discover and the 1200 px rule
Google Discover can show large image previews that get more clicks. Google advises using images that are at least 1200 pixels wide for this. Your site should also allow large previews in its settings. This tool marks any image that would end up narrower than 1200 px, so you can swap it before you publish.
Tip for alt text: describe what is in the picture in one short sentence. Use the keyword only when it fits naturally. Do not stuff keywords.
Frequently asked questions
What is a good SEO file name for an image?
Use short, lowercase words joined by hyphens. Describe the image and include the main keyword when it fits. For example: iphone-16-battery-test.webp.
Does this tool write alt text for me?
No. You type the alt text, because only you know what each picture shows in your article. The tool saves it in a CSV file so you can paste it into WordPress quickly.
Why remove EXIF data?
Phone photos can store the exact GPS location where they were taken. Removing this data protects your privacy. It also makes files a little smaller.
Should I use WebP or JPG?
Use WebP for most websites. WordPress has handled WebP uploads since version 5.8. Pick JPG if your site or theme does not support WebP.
Are my images uploaded?
No. Your images are processed on your own device.
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Final thoughts
Image SEO is easy to skip, yet it adds up across every article. Clear file names and alt text help search engines understand your pictures. Smaller WebP files help your pages load faster. Wide images give you a chance to show up in Google Discover with a large preview. This image SEO optimizer handles all of these steps for a whole article at once.
Type your keyword, drop in the images and add a short alt text for each one. Then download the ZIP and the CSV. Upload the new files to your post and paste the alt text. Your original photos and their location data never leave your device.