Title: Welcart e-Commerce Author: info@welcart Published: 23. Oktober 2009 Last modified: 3. Juni 2026 --- Search plugins ![](https://ps.w.org/usc-e-shop/assets/banner-772x250.png?rev=2072308) ![](https://ps.w.org/usc-e-shop/assets/icon.svg?rev=2072308) # Welcart e-Commerce By [info@welcart](https://profiles.wordpress.org/uscnanbu/) [Download](https://downloads.wordpress.org/plugin/usc-e-shop.2.11.29.zip) * [Details](https://ltz.wordpress.org/plugins/usc-e-shop/#description) * [Reviews](https://ltz.wordpress.org/plugins/usc-e-shop/#reviews) * [Installation](https://ltz.wordpress.org/plugins/usc-e-shop/#installation) * [Development](https://ltz.wordpress.org/plugins/usc-e-shop/#developers) [Support](https://wordpress.org/support/plugin/usc-e-shop/) ## Description Welcart is a free WordPress e-commerce plugin with the top market share in Japan. It offers extensive features and flexibility to help you build your own online store with ease. Compatible with PHP 7.4 to 8.3. #### SHOPPING CART SYSTEM Sell physical products with no limits on the number of items or categories. Manage inventory with SKU codes and configure flexible pricing and shipping options. Additional extension plugins are available to support digital content sales and subscriptions. Over 16 payment services can be added through the official Welcart website. [Welcart Payment services (Japanese)](https://www.welcart.com/wc-settlement/) #### DESIGN A free responsive theme (Welcart Basic) is available, along with premium themes. You can customize the design and layout however you like. [Welcart Theme downloads (Japanese)](https://www.welcart.com/archives/category/item/itemgenre/template/) #### MANAGING SYSTEM Order data is automatically saved and updated in the database. The order list page offers powerful filtering by customer information, date, product type, and more. From the order editing page, you can modify order details, send confirmation emails, download receipt PDFs, and more. #### MEMBERSHIP SYSTEM Welcart includes a built-in membership system with no additional plugins required. The member list page supports searching by customer information and purchase history. A point system is also available for members. ## Screenshots * [[ * Item List page on the admin screen * [[ * Editing orders page on the admin screen * [[ * Top page (Free official theme ‘Welcart Basic’) ## Installation #### AUTOMATIC INSTALLATION In your WordPress admin panel, go to Plugins > Add New, search for “Welcart”, and click “Install Now”. #### MANUAL INSTALLATION Download the plugin ZIP file. Then go to Plugins > Add New > Upload Plugin in your WordPress admin panel, and upload the ZIP file to install. #### ATTENTION During activation, Welcart writes data to tables such as postmeta, options, and terms. If you are installing on an existing site, backing up your data beforehand is strongly recommended. Welcart is not liable for any damages resulting from the use of this plugin. All operations are performed at the user’s own risk. #### RECOMMENDED ENVIRONMENT * WordPress 5.6 or greater * PHP 7.4 or greater * MySQL 5.5 or greater * Own domain with SSL (shared SSL is not recommended) [Server Requirements (Japanese)](https://www.welcart.com/wc-condition/) ## FAQ Please see [Welcart Forum (Japanese)](https://www.welcart.com/community/forums). ## Reviews ![](https://secure.gravatar.com/avatar/0de363f5cc7f40f073627bb7151a70437f37ca45903353f60f279fac12183d0c? s=60&d=retro&r=g) ### 󠀁[使えるがUIが分かりづらい](https://wordpress.org/support/topic/%e9%80%94%e4%b8%ad%e3%81%8b%e3%82%89%e3%81%ae%e5%b0%8e%e5%85%a5%e3%81%af%e8%89%b2%e3%80%85%e3%81%a8%e5%8e%b3%e3%81%97%e3%81%84/)󠁿 [matthew1309](https://profiles.wordpress.org/matthew1309/) 17. September 2025 1 reply コンビニ決済に対応した決済サービスを導入しやすい点で、WooCommerceより便利。ただし、 WooCommerceのような分かりやすい説明はないため、慣れが必要。 以下の点で分かりづらく、 仕組みを理解するのに時間がかかった。・最初に商品の新規追加をしようとしても、配送 方法を登録しておかないとエラーとなり、配送方法の登録からやり直すことになる。・設定 欄によって文字を入力するだけでよいものと、文字の入力後に追加ボタンを押す必要がある ものがある（追加ボタンが入力欄を追加するボタンに見えるが、実際は確定ボタン相当と なっている）ため、統一性がなく非常に分かりづらい。 また、プラグインを有効化した瞬間 に固定ページと投稿カテゴリーを勝手に作り、無効化してもそれらが残ってしまうという、 一度でも有効化すると環境を汚してしまうところも美しくない。そのため、既存の環境に 安易に有効化せず、テスト用の環境で使ってみるのがお勧め。 （訂正）カスタム投稿タイプ は追加しない様子のため訂正した。SKUも商品の新規追加時に設定可能だったため、配送方法 だけ事前に登録しておけば、商品の新規追加が可能だった。 ![](https://secure.gravatar.com/avatar/7ce9bef159f68a6179082decc42c61f1591cd9a448cfda066cc3c89357178245? s=60&d=retro&r=g) ### 󠀁[無料とは思えない高機能](https://wordpress.org/support/topic/%e7%84%a1%e6%96%99%e3%81%a8%e3%81%af%e6%80%9d%e3%81%88%e3%81%aa%e3%81%84%e9%ab%98%e6%a9%9f%e8%83%bd/)󠁿 [阿部](https://profiles.wordpress.org/abema/) 15. Mäerz 2024 無料とは思えない高機能カートシステム。 設定が簡単です。 カスタマイズの幅も広いです。 他のプラグインと併用して機能拡張できるのも便利です。 ![](https://secure.gravatar.com/avatar/cb6b17974c72e3c31831005b3daee35ffa5a321c7dd56df5c536e8e9c81bc905? s=60&d=retro&r=g) ### 󠀁[無料のオンラインショップ制作](https://wordpress.org/support/topic/%e7%84%a1%e6%96%99%e3%81%ae%e3%82%aa%e3%83%b3%e3%83%a9%e3%82%a4%e3%83%b3%e3%82%b7%e3%83%a7%e3%83%83%e3%83%97%e5%88%b6%e4%bd%9c/)󠁿 [Hasan Islom](https://profiles.wordpress.org/hasanis/) 19. August 2022 オンラインショップを無料で制作するにすごくいいプラグインです。 カスタマーサポート も日本語で優しくしてくれて助かります。 ![](https://secure.gravatar.com/avatar/e8e4a12551b7e02640c2b45c6133e74212b507f53aeaa83edff08703ce5e2661? s=60&d=retro&r=g) ### 󠀁[really good.](https://wordpress.org/support/topic/really-good-179/)󠁿 [Carolrosent](https://profiles.wordpress.org/carolrosent/) 8. Februar 2017 Really good plugin , fairly simple to use [ Read all 6 reviews ](https://wordpress.org/support/plugin/usc-e-shop/reviews/) ## Contributors & Developers “Welcart e-Commerce” is open source software. The following people have contributed to this plugin. Contributors * [ info@welcart ](https://profiles.wordpress.org/uscnanbu/) * [ Welcart ](https://profiles.wordpress.org/welcart/) “Welcart e-Commerce” has been translated into 2 locales. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/usc-e-shop/contributors) for their contributions. [Translate “Welcart e-Commerce” into your language.](https://translate.wordpress.org/projects/wp-plugins/usc-e-shop) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/usc-e-shop/), check out the [SVN repository](https://plugins.svn.wordpress.org/usc-e-shop/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/usc-e-shop/) by [RSS](https://plugins.trac.wordpress.org/log/usc-e-shop/?limit=100&mode=stop_on_copy&format=rss). ## Changelog 3 Jun 2026 #### V2.11.29 * Security enhancement (Broken Access Control). * [PayPal] Fixed subsequent processing after payment error in automatic recurring billing. * Fixed a bug where radio buttons and checkboxes were not displayed in button_to_cart. * Readme file optimization. * Fixed PHP errors. 1 Apr 2026 #### V2.11.28 * [PayPal] Removed unnecessary IPN settings. * [PayPal] Fixed a bug that an error status was not displayed on the order list when a capture error occurred. * Fixed the style of the “Close” button on the mail sending dialog. * Added an index to the usces_order table. * Fixed the deprecated widget class declaration. * Fixed PHP errors. 21 Jan 2026 #### V2.11.27 * Made compatible with PHP 8.3. * [WelcartPay] Fixed a bug that error messages for credit card updates were not displayed on the My Page when using 3DS. * Fixed a bug that members using recurring payments could cancel their membership from the My Page. * [Security Enhancement] Improved security. 16 Dec 2025 #### V2.11.26 * Fixed a bug that the quantity could not be updated on the cart page when the SKU code contained specific symbols. * Fixed a bug that an error occurred when attempting to use points for shipping payment when purchasing a 0 yen item. * Fixed a bug that error messages were not displayed correctly after the “usces_filter_incart_check” filter hook. * Changed the payment service provider company name. For older versions, please see the [Changelog Archive (Japanese)](https://www.welcart.com/about/changelog/). ## Meta * Version **2.11.29** * Last updated **2 Deeg ago** * Active installations **10 000+** * WordPress version ** 5.6 or higher ** * Tested up to **7.0** * PHP version ** 7.4 or higher ** * Languages * [English (US)](https://wordpress.org/plugins/usc-e-shop/), [Japanese](https://ja.wordpress.org/plugins/usc-e-shop/), and [Vietnamese](https://vi.wordpress.org/plugins/usc-e-shop/). * [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/usc-e-shop) * Tags * [cart](https://ltz.wordpress.org/plugins/tags/cart/)[e-commerce](https://ltz.wordpress.org/plugins/tags/e-commerce/) [shopping](https://ltz.wordpress.org/plugins/tags/shopping/)[store](https://ltz.wordpress.org/plugins/tags/store/) [Welcart](https://ltz.wordpress.org/plugins/tags/welcart/) * [Advanced View](https://ltz.wordpress.org/plugins/usc-e-shop/advanced/) ## Ratings 4.5 out of 5 stars. * [ 4 5-star reviews ](https://wordpress.org/support/plugin/usc-e-shop/reviews/?filter=5) * [ 1 4-star review ](https://wordpress.org/support/plugin/usc-e-shop/reviews/?filter=4) * [ 1 3-star review ](https://wordpress.org/support/plugin/usc-e-shop/reviews/?filter=3) * [ 0 2-star reviews ](https://wordpress.org/support/plugin/usc-e-shop/reviews/?filter=2) * [ 0 1-star reviews ](https://wordpress.org/support/plugin/usc-e-shop/reviews/?filter=1) [Your review](https://wordpress.org/support/plugin/usc-e-shop/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/usc-e-shop/reviews/) ## Contributors * [ info@welcart ](https://profiles.wordpress.org/uscnanbu/) * [ Welcart ](https://profiles.wordpress.org/welcart/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/usc-e-shop/)