Product comparison in WooCommerce: line products up side by side before the sale

A shopper deciding between three similar products faces a small but real friction: they have to hold prices, specs and stock in their head while clicking between pages. Product comparison removes that friction by putting the candidates in one table, side by side. This guide explains what WooCommerce product comparison is, why it matters for considered purchases, and what to look for in a tool.

What Product Comparison Is and Why It Matters

Product comparison is a feature that lets a shopper collect several products and view them together in a single side-by-side table. Instead of opening each product in its own browser tab and comparing prices, attributes and availability by hand, the shopper sees every candidate lined up in columns, with one row per piece of information.

This matters most for considered purchases: electronics, hardware, anything with specs that decide the choice. When the comparison happens on your store rather than in a shopper’s notes or across a dozen tabs, fewer people drop off, and the decision stays on the page where they can add to cart.

What to Look For

Not every comparison tool is built the same. A few properties separate a useful one from a drag on the store:

• A clear side-by-side table. Image, name, price, SKU, availability and a short description, plus a row for each product attribute, so the differences are obvious at a glance.
• Difference highlighting. Rows whose values differ should stand out, ideally with a toggle to show only the differences and hide everything the products share.
• Guest and customer lists. Logged-out visitors should be able to build a comparison too, with their list merging into their account when they log in.
• A sensible product cap. A table that grows without limit becomes unreadable. A configurable cap keeps it scannable.
• No performance tax. Comparison should not load heavy JavaScript on every shop listing. Plain JavaScript with no jQuery dependency keeps the shop fast.

How Versus Does It

Versus for WooCommerce is a free, open source (GPLv2) comparison plugin built around those properties. It adds a compare button automatically on shop listings and on the product page, and each placement can be toggled independently in the Versus menu.

The comparison opens as a side-by-side table showing image, name, price, SKU, availability and a short description, plus a row for each product attribute. Rows whose values differ are highlighted, and a show-only-differences toggle hides everything the products have in common. Guests get a comparison list stored per browser, customers get a Compare tab in My Account, and the two lists merge on login. The list is capped between 2 and 6 products, configurable, with the oldest item dropping off when the cap is exceeded.

Rendering is plain JavaScript with no jQuery dependency, and the buttons carry accessible labels and ARIA attributes. Everything above is in the free edition.

For stores that want more control, Versus Pro adds a [versus_compare] page shortcode that renders a full table including weight and dimensions, configurable rows you toggle under Products to Versus Pro, a sticky compare bar at the bottom of shop and category pages, CSV/PDF/print export of the table, and an option to restrict additions to products sharing a WooCommerce category. Those features are PRO-only and require the free Versus plugin active.

Versus vs Default WooCommerce

WooCommerce has no built-in product comparison. Here is the difference for comparison specifically:

Capability	Default WooCommerce	Versus
Side-by-side compare table	None built in	Image, price, SKU, availability, attributes
Difference highlighting	n/a	Yes, with show-only-differences toggle
Compare button placements	n/a	Shop listings and product page, each toggled
Guest comparison lists	n/a	Yes, per browser, merged on login
Customer comparison list	n/a	Compare tab in My Account
Product cap	n/a	Configurable 2 to 6, oldest drops off
Front-end dependency	jQuery in many themes	Plain JavaScript, no jQuery
Cost	Free (core has none)	Free; PRO adds shortcode, rows, sticky bar, export

The Short Version

Product comparison turns a multi-tab, by-hand chore into one side-by-side table on your store, which keeps considered purchases from drifting away. Look for a clear table, difference highlighting, guest and customer lists, a sensible cap and no performance tax. Versus delivers all of that free, with PRO adding a comparison-page shortcode, configurable rows, a sticky bar and export.