Clerk
Clerk.io is a software that helps your customers buy more from your webshop, through 4 amazing feature:
Consider an alternative
Clerk shows warning signs in 2026 — compare the alternatives below before installing. It runs on 400+ sites, is rated 5/5 and was last updated 2 years ago, and scores 37/100 on our health check.
- Small user base (400+ active installs)
- Very few reviews so far
- No update in over a year
- Only tested up to WordPress 6.5 (latest is 7.1)
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Clerk stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| customer conversion | >100 |
| customer retention | #68 |
| customer segmentation | #58 |
| product recommendations | >100 |
| semantic search | >100 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 5 from 1 reviews
About Clerk
From the official readme · v4.2.1Description
Clerk.io is a software that helps your customers buy more from your webshop, through 4 amazing feature:
- Dynamic Product Recommendations, which are based directly on your customers behaviour
- An Intelligent Search Engine, which ranks products based on what most customers will be likely to buy
- Automated Email Recommendations, which always shows the right products to each individual customer
- Customer Segmentation, which lets you find the best possible Audience for any type of marketing.
Clerk.io’s algorithms use your orders to continually updates each feature, so the right products will always be shown
to each unique customer, based on their behaviour.
When Clerk.io has been setup, it runs 100% automatically, so you can spend your time on other important parts of your business.
With this plugin, you can easily get started with Clerk.io in a matter of minutes.
You can get a 7 day free trial of Clerk.io, by going here:
https://my.clerk.io/#/signup
Once signed up, simply login to your my.clerk.io backend, which will guide you through the entire WooCommerce setup.
Changelog
= 4.2.1 – 2025-03-26
* Fix for real time update performance bug.
= 4.1.9 – 2024-07-29
* Added price_html field to product data.
* Added average_rating, rating_count and review_count to product data.
* Added guard to check that wc_products() is defined, to cover people installing plugin before woocommerce itself on their wordpress.
* Log email from active login, even if not typed into input field, if collect_emails enabled.
* Flatten child products custom attributes into single array.
= 4.1.8 – 2024-04-15
* Added guards for grouped products without get_regular_price method in product sync.
* Remove RTU trigger from variants being modified.
* Added new hooks position for product page recommendations.
* Added beRocket as source for brands.
= 4.1.7 – 2024-01-30
* Added RTU for pages.
* Added instant sync option for RTU pages.
* Restructured settings fields in admin.
* Added scope prefixed settings for polylang users.
* Added ability to force sync to give data in language context via lang param.
= 4.1.6 – 2024-01-04
* Added toggle for using legacy Authentication
* Made clerk.js path dynamic for each store
= 4.1.5 – 2023-12-08
* Fix custom scripts print statement
= 4.1.4 – 2023-11-30
* Fix site url
= 4.1.3 – 2023-11-27
* Added ability to programatically disable powerstep
* Added better custom attribute support for customer endpoint
* Added roles default field to customer endpoint
* Added option to not strip url params when redirecting for Powerstep
* Added WooCommerce Brands and PBW Brands to Category Data.
* Variant Images conform to selected dimensions in admin
* Reduced product and variant instanciation count during full sync
* Separated JS and CSS resources for admin
* Added support for WPML.
* Fixed access of min_raw_price to use method instead of property
* Added category names to product default data
* Added product tags to product default data
* Added support for getting product attributes created using Advanced Custom Fields
* Added JWT token to sync authorization
= 4.1.2 – 2023-08-09
* Cleaned up variable names for product attribute import
* Fixed json encoding to removing products via realtime updates
= 4.1.1 – 2023-08-06
* Added all prices both as Exc VAT and Inc VAT
* Improved Attribute Split Handling from String
= 4.1.0 – 2023-08-01
* Added support for currency conversion for clients using aelia_currency_convert.
* Fixed variant id param getting trimmed with non ajax powerstep page for some users.
* Change realtime update hook for products to be more deferred.
* Added option to exclude custom attributes from getting stripped and split.
= 4.0.9 – 2023-04-25
* Added more type safety to realtime update variant emulation.
= 4.0.8 – 2023-04-25
* Forced variant variations to instantiated as Class for real-time updates.
= 4.0.7 – 2023-03-30
* Fixed search page settings bug.
= 4.0.6 – 2023-03-29
* Force base api host to https
= 4.0.5 – 2023-03-20
* Force cast facets as array for admin
= 4.0.4 – 2023-03-06
* Fixed image mapping for custom image sizes on first install
= 4.0.3 – 2023-02-14
* Improved page / post import for custom types
* Removed email signup checkbox if message is only whitespace
* Fixed tax rate calculation on grouped products
* Fixed realtime update bug when duplicating individual products
= 4.0.2 – 2023-01-30
* Improved Object returns handling for custom taxonomies
* Added catalog visibility default field
* Fixed powerstep disable lockout
* Fixed quote type for powerstep embedcode
* Removed limit from search page template embed, on favor of content
* Added santinitation for empty attributes
= 4.0.1 – 2022-11-28
* Changed sorting for pagination to work better with overwritten Product ids from alternate import methods.
* Added featured image import to custom page types.
* Fixed escaped quote in facet titles string.
= 4.0.0 – 2022-11-17
* Corrected Syntax for WP standards.
* Added security sanitation to all request data.
* Updated methods for realtime updates, to none locking methods for post meta.
* Deferred template JS load time.
* Changed allowed methods for all external requests.
= 3.8.3 – 2022-10-14
* Added header scripts field to admin
* Added manual translations to powerstep
* Improved key verification for API
3.8.2 – 2022-10-14
- Added default null values to save_product function
3.8.1 – 2022-10-10
- Fixed realtime updates object eval
3.8.0 – 2022-05-10
- Added message to empty search pages.
- Added settings check before syncing variant stocks.
- Changed base domain determination to work with CLI updates.
- Added hooks for syncing new products, without them being edited.
- Added hooks for catching products created through WooCommerce CSV / Import feature in real time updates.
- Fixed bug where prices would be cast to strings when only updating that field.
- Removed css class from input widget, which could generate console errors.
- Added Get / Set config support for all settings fields in Admin.
3.7.1 – 2022-07-25
- Changed how On Sale attribute is calculated
- Changed default classes and title on powerstep to WP utility classes
- Changed variant exclusion based on missing price
- Added fallback for sales tracking parent id for grouped products
- Changed stock filter to happen in bulk query instead of per product
- Added fallback for getting page url
3.7.0 – 2022-06-15
- Added Exclude checkbox for all recs, and added filter to span generation.
- Added default lists with variable product data, similar to shopify.
- Added selector for image size to sync in admin.
- Added checkbox to enabled or disable pages in search page embedcode.
- Added sync method for subscriber type users, without historic orders.
- Added checkbox injection with custom message for log/subscriber from checkout page. This is a feature parity thing, with mailchimp/woocommerce mail module.
- Added shortcodes to allow printing, product, category and cart ids in templating engines like elementor.
- Fixed position of cart page slider, by changing hook position. Before it would get removed if the client used ajax cart, and edited their cart contents. Placement also overflowed checkout button on mobile.
- Added better tax handling on order tracking page, to allow us to work seamlessly with geoip modules.
- Fixed page type set wrong for All option on search page.
- Added sanity check for attribute keys with dashes, to make them compatible with our feed structure.
- Improved admin panel UX, with some colors, log and spacing, as well as a floating save button to avoid having to scroll our extensive settings to the bottom to save.
- Added New way to pull and register subscribers
- Fixed search page page type bug
- Change to variant handling to include more complete information.
- Change to sales tracking to account for geoip tax rates.
3.6.1 – 2022-01-20
- Fixed wrong product stock bug.
For developers
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FAQ
Clerk: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 5, 2026
Is Clerk free?
Yes. Clerk is free to download and use from the official WordPress.org plugin directory.
Is Clerk safe to use in 2026?
Clerk shows warning signs in 2026 — compare the alternatives below before installing. It runs on 400+ sites, is rated 5/5 and was last updated 2 years ago, and scores 37/100 on our health check.
How many websites use Clerk?
Clerk is active on 400+ WordPress websites and has been downloaded 17,539 times since it launched in May 2017. It was downloaded 218 times in the last 30 days.
Does Clerk work with WordPress 7.1?
Clerk is officially tested up to WordPress 6.5.12, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was Clerk last updated?
The latest version, 4.2.1, was released on March 26, 2025 (2 years ago).
Who makes Clerk?
Clerk is developed and maintained by clerkio.
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