Klarna for WooCommerce vs Japanized for WooCommerce (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Japanized for WooCommerce
10K+ active installs
Free
Quick Verdict
As of April 2026, Japanized for WooCommerce has a higher user rating (3.3/5 from 21 reviews) while Klarna for WooCommerce leads in active installations (30K+ vs 10K+). Both are free WordPress plugins. Klarna for WooCommerce has accumulated 1.8M+ total downloads while Japanized for WooCommerce has 558K+. Klarna for WooCommerce has a higher support resolution rate (62% vs 0%).
Detailed Comparison
| Metric | Klarna for WooCommerce | Japanized for WooCommerce | |
|---|---|---|---|
| Rating | 2.3/5 | ► | 3.3/5 |
| Total Reviews | 20 | ► | 21 |
| Active Installs | 30K+ | ◄ | 10K+ |
| Total Downloads | 1.8M+ | ◄ | 558K+ |
| Support Resolution | 62% | ◄ | 0% |
| Last Updated | 4 days ago | ◄ | 2 weeks ago |
| First Released | 2017 | 2014 | |
| Age | 9 years | 12 years | |
| WP Requires | 6.7+ | 6.7+ | |
| PHP Requires | 7.4+ | 8.1+ | |
| Business Model | Free | Free | |
| Latest Version | 4.9.0 | 2.9.4 |
Rating Breakdown
Klarna for WooCommerce
Japanized for WooCommerce
Download Trends
Over the past 30 days, Klarna for WooCommerce averaged approximately 1,410 daily downloads while Japanized for WooCommerce averaged 160.
Recent Reviews
Klarna for WooCommerce Reviews
crashed my website
this plugin crashed my website, i find out payment plugins are the worst type on wordpress, can anybody tell me why
How did 4.5.0 Pass Testing?
Version 4.5.0 is absolute rubbish and should never have been released to the repository. Compatibility with WordPress 6.9 is supposedly “100%” according to the author – yeah, sure. Was this even teste
not so great
the plugin works but:1. translations / internationalisation is barely there, many buttons cannot be translated 2. it adds a s**t load to the checkout for no real purpose 3. you need a 2nd plugin
Japanized for WooCommerce Reviews
2.6.27 『このサイトで重大なエラー』
Japanized for WooCommerce最近、更新間隔が短いので注意していたのですが無効化してから更新しても 『このサイトで重大なエラー』 発生しました。 復旧作業疲れました。 This topic was modified 1 year, 1 month ago by yuyu009.
Fatal error: Uncaught Error: Call to undefined function get_current_screen()
Version2.6.15にアップデートしたらエラーになりました。 wp-content/plugins/woocommerce-for-japan/woocommerce-for-japan.php on line 159表示されます。 This topic was modified 1 year, 8 months ago by 3488521.
休日設定をしても配達希望日として設定できてしまう
食料品には対応してない印象を受けます。生鮮食品関係のECで無料版を利用していますが、いくら休日期間を設定してもお客側からは配達希望日を設定できてしまいます。商品の消費期限が短く出荷調整などがあるため、こちらで休日とした日はお客側には配達希望日として表示しないようにして頂けると助かります。3年前のフォーラムでも似たような質問（配送に関する新機能希望2020年3月25日）が出ていて機能追加される旨が書
More E Commerce Worth Comparing
Top alternatives in the same category as Klarna for WooCommerce and Japanized for WooCommerce
WCBoost - Wishlist lets shoppers create wishlists for later purchases, reminding them of desired items, driving repeat visits and boost sales.
Install the Amazon Pay plugin for your WooCommerce store and take advantage of a seamless checkout experience
Powerful, easy to use ecommerce shopping cart for WordPress. Sell on Facebook and Instagram. iPhone & Android apps. Superb support.
Adds various conversion tracking codes to cart, checkout, registration success and product page on WooCommerce
Welcart is a free e-commerce plugin for Wordpress with top market share in Japan.
The leading checkout in the Nordics, built for higher conversion and returning shoppers. Easy to integrate, supports Klarna and all popular payment me …
Frequently Asked Questions
Is Klarna for WooCommerce or Japanized for WooCommerce more popular?
Which has better ratings — Klarna for WooCommerce or Japanized for WooCommerce?
Are Klarna for WooCommerce and Japanized for WooCommerce free?
Which plugin has better support — Klarna for WooCommerce or Japanized for WooCommerce?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.