Optimize Images ALT & Filename for SEO


Alt text & filename are important for image SEO. Our plugin bulk optimize images to update your alt texts and filename with SEO friendly content. Save a ton of time.

Image SEO also generates Social Media preview cards and allows you to manually edit image filenames and alt.

Optimize images alt text

Auto optimize images alt for SEO using Artificial Intelligence.

  • Bulk optimize images alternative texts (alt text) using AI
  • Rewrite or bulk optimize images filenames for SEO
  • Auto optimize images alt tag on upload
  • Missing Alt tag checker
  • Images optimization for social media (preview cards)
  • Use AI or targeted keywords from Yoast, SEOPress, Rankmath

Save a ton of time, boost your traffic from Google Image & improve your accessibility.

Ideal for photographers and WooCommerce.


  • 1 – download and activate Image SEO
  • 2 – [create an account on Image SEO](https://app.imageseo.io/register-wordpress) to get an API Key
  • 3 – enter and save your API Key.
  • 4 – bulk optimize images alt and name for SEO

Images SEO learning centre: https://imageseo.io/images-alt-and-filenames-for-seo/
Image SEO best practices : https://imageseo.io/blog

How Image SEO Optimizer works ?

We use Artificial Intelligences (AI) to update your images alt tags for SEO.

What about the Premium?

Image SEO is free for small websites (10 images/month). Premium plans start at 4,99€ for WooCommerce, Photographer and SEO Agency. We offer professional support to premium users and payment are secured by Stripe : https://imageseo.io/pricing/

Auto Alt text / Alt tag

Automatically generating alt text or alt tag is the best way to optimize your image for SEO.

Optimize Images for SEO Ressources

Look this ultimate guides about image SEO optimization to learn about alternative texts (alt, alt tag or alt text), EXIF Data, Figure, Figcaption, Title text and Title tag, responsive images, Lazy load, image sitemaps, etc.



Minimum Requirements for Image SEO

  • WordPress 4.5 or greater
  • PHP version 5.6 or greater

Upload the plugin files to the /wp-content/plugins/image seo directory, or install the plugin from WordPress plugins directory.


What is an alternative text (alt) ?

alt tag, “alt attribute” and “alt description,” is an HTML attribute applied to image tags to provide a text alternative for search engines. Images with alt text impacts SEO. (ie : ).

Do I lose alt if I downgrade my plan ?

Nop filenames and alt will be saved.

difference between alt text and alt tag ?

There is no difference between alt text and alt tag.

How to write all text ?

Alt text should be short but descriptive. You need to describe your image in 2-3 words.

Do you optimize image title ?

Image title is not relevant for SEO. We don’t optimize images title attributes.

Does Image SEO integrates with other plugins?

We are compatible with including Featured Images, WooCommerce, NextGen Photo Gallery, Responsive Photo Gallery, FooGallery, Custom Post Type Images. ImageSEO also works with every image version : – full-sized optimized image, – full-sized WebP image, – optimized thumbnails, – WebP thumbnails, and many others.

Is Image SEO available in my language?

Image SEO works in every language.


يوليوز 15, 2021
Ease of use was an important factor for me and ImageSEO is really simple to use. A little expensive but I was able to fill in over 2000 alternative texts without any headaches!
يوليوز 9, 2021
Viel zu teures Plugin, das können andere kostenlos oder für wesentlich weniger Geld. Zum Beispiel für eine einmalige Lizenzgebühr. Dieses Plugin berechnet pro Bild.
يونيو 9, 2021
I tried this on 6 of my images, and it gave completely innacurate results. It seems to take into account some machine learning as well as your page description text, but without giving you any granular control, and picking bad words. Fo example, i uploaded a celebrity portrait, and the only "alt" tags it gave were "forehead" and "skin". Useless.
Read all 47 reviews

Contributors & Developers

“Optimize Images ALT & Filename for SEO” is open source software. The following people have contributed to this plugin.


“Optimize Images ALT & Filename for SEO” has been translated into 2 locales. Thank you to the translators for their contributions.

Translate “Optimize Images ALT & Filename for SEO” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.


2.0.6 (06-26-2021)

Bugfix: Undefined variable
Improved: wording & UI

2.0.5 (06-26-2021)

  • Removed: Wizard after activate plugin
  • Improved: wording

2.0.4 (06-16-2021)

  • Bugfix: Timeout on register
  • Bugfix: social media meta
  • New: Integration with NextGEN Gallery
  • Next: Bulk gallery NextGEN
  • Bugfix: Check new filename
  • Bugfix: Prevent bulk page if limit excedeed

2.0.3 (05-06-2021)

  • Bugfix: Save options for social network images

2.0.2 (05-04-2021)

  • New: Wizard during activation to guide you through the plugin.

2.0.1 (04-26-2021)

  • Improved: Replacing all custom thumbnails in WordPress
  • Bugfix: on upload rename file

2.0.0 (04-19-2021)

  • New: Complete redesign of the UI/UX
  • New: Removed aliases and added real file renaming.
  • Improved: Bulk performance

1.3.2 (02-22-2021)

  • New: Creation of a new more efficient bulk process
  • Bugfix: Undefined index on social media head

1.3.1 (09-07-2020)

  • Improved: background process for processing images
  • Improved: no permanent updating of the social network image
  • Bugfix: Flush rewrite rules after an update

1.3.0 (08-19-2020)

  • New API

1.2.13 (08-12-2020)

  • Improved: plugin performance

1.2.12 (07-01-2020)

  • Bugfix: Correction of the custom format on the bulk process
  • Bugfix: Repairing the button to generate a social image when editing a post
  • Improved: Added an action to force the shutdown of a bulk process if it is crashed

1.2.11 (06-25-2020)

  • Improved: The bulk process. It is possible to quit your browser
  • Changed: The manual generation of a social image is no longer a background process.

1.2.10 (04-02-2020)

  • Bugfix: Fix parser to insert pinterest metas
  • Bugfix: Sanitize title of filenames to avoid spaces

1.2.9 (04-02-2020)

  • Bugfix: Error notice PHP for users who have not added their API key
  • Removal of file renaming option for NGinx servers

1.2.8 (03-23-2020)

  • Improved: Add compatibility rename file with Imagify
  • [NEW]: We can replace the alts in fro on any type of content (Elementor, Beaver Builder, etc…).

1.2.7 (03-16-2020)

  • [NEW] : New process to rename images. Completely safe!
  • Improved : Checking for images that no longer exist in the library during bulk

1.2.6 (03-08-2020)

  • Improved: Remove cache report so that the data is always up to date
  • Improved: Image query improvement

1.2.5 (03-01-2020)

  • New: Social card compatible with Rank Math
  • Remove bulk filename
  • Improved: Process rename and alt on upload file

1.2.4 (02-26-2020)

  • Bugfix: Updating the cache on the image counter
  • Improved: Background image counter processing (performance improvement)
  • Improved: Possibility to go back on a file name change
  • Remove useless files
  • Removing autoload from some options
  • Removing the duration of permanent image redirections (htaccess)

1.2.3 (02-19-2020)

  • Bugfix: Selection of the default language at the time of upload
  • Clean template settings files

1.2.2 (02-08-2020)

  • Improved: Loading social media images in post list
  • Update of the Image SEO PHP library

1.2.1 (02-04-2020)

  • Update of the Image SEO PHP library
  • Improved: Removing old social media images.
  • Improved: wording

1.2.0 (01-31-2020)

  • [NEW]: Social card optimizer. We automatically generate images for social networks.
  • Improved: Performance bulk optimization for alt and media filename.
  • Improved: Performance query SQL .
  • Bugfix: Support spaces (first element) in htaccess

1.1.4 (01-24-2020)

  • Improved: security
  • Improved: design

1.1.3 (01-18-2020)

  • [New]: Possibility to use a custom template to rename alternative texts
  • [New]: Shortcode compatible with SEOPress
  • Improved: Improved bulk performance
  • Bugfix: Support for filename spaces in htaccess
  • Bugfix: Fixed SQL query for empty alts

1.1.2 (01-12-2020)

  • Bugfix: Fixed query for bulk on empty alts
  • Improved: Ability to manually edit the results of the bulk (alt and filename)
  • [New]: You can rename the file names in your library
  • Improved: Added a new template for alt with Yoast’s focus keywords

1.1.1 (01-10-2020)

  • Bugfix: Calculating the remaining credit percentage
  • Bugfix: Generate report attachement on manual action

1.1.0 (01-08-2020)

  • [NEW]: New design and global improvement of the plugin
  • Add: Ability to manually validate bulk results
  • Add: You can choose among 3 different alt templates during bulk optimization with a WooCommerce specific template
  • Add: It is possible to filter the images that you want to optimize.
  • Improved: You can block file renaming with a WordPress filter in your content database (useful for specific content such as Beaver Builder).

1.0.22 (20-10-2019)

  • Bugfix: Case sensitive on file renaming

1.0.21 (12-10-2019)

  • Improved: Improvement of mass optimization to use only the credits necessary for the optimization of empty alts only.
  • Improved: Prevention of infinite redirection loops on writing htaccess rules.

1.0.20 (12-09-2019)

  • Bugfix: Correction of the calculation of the images to be optimized with the alternative text

1.0.19 (12-03-2019)

  • Improved: Renaming your old file name by new ones throughout your database
  • Add: Creation of 301 permanent redirections for your images that change their name. (Only Apache, soon Nginx)
  • Bugfix: Consideration of images that have never had an alt (=empty) in media library filters

1.0.18 (12-01-2019)

  • New: You can register an account directly in the plugin
  • Improved: Improvement of the overview

1.0.17 (11-17-2019)

  • New: You can filter your library according to the filling of your alternative texts
  • Improved: Possibility to know the traffic gain you should get after optimization
  • Improved: Help to choose your image credit needs

1.0.16 (10-14-2019)

  • Improved: Adding features for developers
  • Bugfix: Unlocking the translation for “one time” purchases

1.0.15 (09-17-2019)

  • Bugfix: Consideration of additional credits on the meter purchased separately
  • Improved: Automatic support for images hosted on a bucket

1.0.14 (06-14-2019)

  • Bugfix: Separation of the 2 bulk options during the alts update
  • Improved: Support for unnecessary”.”” in upload file names

1.0.13 (05-24-2019)

  • Bugfix: Rename file on bulk optimization
  • Improved: Use cache request to avoid consuming too many images

1.0.12 (05-11-2019)

  • Bugfix: Error when replacing the file name if the account was full
  • Improved : Admin notice if the configuration is not completed

1.0.11 (05-03-2019)

  • Bugfix: Error on upload directly image

1.0.10 (05-02-2019)

  • Add : Language support to generate file names / alts

1.0.9 (04-28-2019)

  • Improved : esc_attr on data attribute for Pinterest
  • Add : automatically rename files during upload
  • Add : Featured image support

1.0.8 (04-28-2019)

  • Add : Manage data attribute for Pinterest
  • Improved : Bulk optimization

1.0.7 (04-24-2019)

  • Changed: Improve alt generator

1.0.6 (04-09-2019)

  • Changed: Update library PHP for new API

1.0.5 (03-12-2019)

  • Changed: Update library PHP for improve get mime types

1.0.4 (03-05-2019)

  • Changed: Improve wording
  • Changed: Improve rename file

1.0.3 (02-16-2019)

  • Changed : Improve rename file
  • Changed : Light settings
  • Changed : Improve bulk optimization

1.0.2 (02-09-2019)

  • Changed : prevent limitation images

1.0.1 (02-07-2019)

  • Changed : add start and stop on optimization bulk

1.0.0 (02-04-2019)

  • Initial version