CS-Cart add-ons and themes, built right.

Add-ons and storefront themes for CS-Cart and Multi-Vendor. Hooks only, no core edits, unencoded source code and a tested version range, so they fit your store the first time.

  • 88add-ons on sale
  • 27storefront themes
  • 4.17.2 – 4.21.xtested version range
  • 12months of updates included
88 add-ons · 27 themesCS-Cart & Multi-Vendor 4.17.2 – 4.21.x

CS-Cart

The add-ons stores ask about most

Twelve features with their own page: the problem, the options, how the add-on works and real screenshots.

Vendor Payouts Automation

Vendor payouts

Payout schedules, hold periods, approval batches and SEPA or PayPal payout files, on top of core vendor accounting.

from $149

Advanced Commission Rules

Commission rules

Commission by vendor, category, product, price or monthly sales on top of your vendor plans, with a simulator.

from $129

Sell by Weight & Length

Sell by weight

Decimal quantities with a unit, step, presets and price per kg or metre, with exact stock down to 0.001.

from $129

Make an Offer

Make an offer

A Make an offer button with counter-offers, deadlines and a single-use agreed price; vendors answer their own offers.

from $49

Product Personalizer

Product personalizer

Text, photo and choice fields on print areas with a live preview, server-rendered proofs and surcharges.

from $99

EU e-Invoicing: XRechnung, Factur-X/ZUGFeRD & Peppol-ready UBL

E-invoicing

XRechnung, Factur-X/ZUGFeRD and Peppol BIS 3.0 e-invoices and credit notes from every order.

from $99

Abandoned Cart Recovery Pro

Abandoned cart recovery

Up to three reminders, single-use coupons, one-click cart restore and recovered revenue per reminder.

from $69

Advanced Promotions: Buy X Get Y, Tiers, Schedules

Advanced promotions

Buy X get Y, cheapest item free, tier tables and time windows inside the promotion editor you already use.

from $99

Spreadsheet Bulk Product Editor

Bulk product editor

Edit the whole catalog in a spreadsheet grid, with mass actions, a preview, a change log and undo.

from $69

B2B Request a Quote (RFQ)

Request a quote

Quote lists, offers with quantity breaks and validity dates, and checkout at the quoted prices.

from $99

SEO Pro Suite: Rich Snippets, Canonical, Hreflang & llms.txt

SEO suite

Richer product markup, FAQs, robots rules, social cards, llms.txt and a page check, on top of the core SEO add-on.

from $99

Wholesale Price Lists

Wholesale price lists

Named price lists with quantity breaks for user groups or single customers, with CSV import and validity dates.

from $99

Storefront themes with live demos

27 themes for CS-Cart and Multi-Vendor, each with several styles and its own demo store.

Ledger theme

Ledger theme

A Swiss-editorial storefront theme with oversized type, a ruled category index and four bold styles, built on Responsive so every add-on keeps working.

CS-Cart $129Multi-Vendor $199
Atelier theme

Atelier theme

A fashion storefront theme that reads like a printed lookbook: editorial serif type, tall 3:4 imagery, quick size picking and four styles.

CS-Cart $149Multi-Vendor $219
Bazaar theme

Bazaar theme

A vendor-first marketplace theme: vendor chips on every product, shop cards, storefront banners and a seller box, in four lively styles.

Multi-Vendor $229
Pantry theme

Pantry theme

A grocery theme built for fast basket filling: aisle bubbles, unit prices, Add-to-stepper cards and a basket bar on phones.

CS-Cart $139Multi-Vendor $209

See all 27 themes

Why store owners choose Kavio Labs

No core edits

Everything runs through CS-Cart hooks and template overrides, so core upgrades and your other add-ons keep working.

Tested 4.17.2 → 4.21.x

Every release is tested on CS-Cart and Multi-Vendor across the supported range.

Yours to keep

A perpetual licence with unencoded source code. After the 12 months of updates and support everything keeps working; renewal is optional, at 50%.

Low risk

A 30-day refund on your first purchase of an add-on, and development hosts such as localhost never count as a licensed domain.

Guides

CS-Cart guides

Guide

Selling by weight compared

How five platforms handle 1.25 kg or 2.5 m, the usual workarounds and what to check before you choose.

Read the guide

Guide

E-invoicing explained

XRechnung, ZUGFeRD/Factur-X and Peppol BIS 3.0 explained, with the DE, FR and BE timelines and a store checklist.

Read the guide

Guide

Make-an-offer settings

Hidden minimums, auto-accept and auto-decline thresholds, deadlines and limits that keep offers profitable.

Read the guide

FAQ

Questions and answers

Which CS-Cart versions are supported?

CS-Cart and Multi-Vendor 4.17.2 up to 4.21.x. Every product page lists the tested range and the editions.

Do the add-ons work with Multi-Vendor?

Most of them do, with marketplace features such as vendor panels and per-vendor rules. Some are built for Multi-Vendor only; the edition is shown on every card.

Where can I buy them?

On our store at cs-cart.kaviolabs.com, by card in USD. Selected products are also listed on the CS-Cart Marketplace.

What happens after the 12 months?

The add-on keeps working, and you keep every version released during your period. Renew at 50% of the current price when you want new versions and support again.

Find the right add-on for your store

Product pages on the store have the full feature list, screenshots, documentation and the changelog.

Kavio Labs

Also by Kavio Labs

The same standards, the same support desk and one licence portal on every platform we build for.