Best nip plugins for WordPress
The most popular nip plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Nip Finder leads with 50+ active installs, ahead of Yzukar B2B Invoice Fields for KSeF (fewer than 10) and Ksefshop Invoices for WooCommerce (fewer than 10). All 4 plugins tagged “nip” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
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Top 4 nip plugins
- 1.
Nip FinderThe most installed nip plugin, with 50+ active installs. No reviews yet, updated 4 months ago.
- 2.
Yzukar B2B Invoice Fields for KSeFFewer than 10 active installs. No reviews yet, updated 2 months ago.
- 3.
Ksefshop Invoices for WooCommerceFewer than 10 active installs. No reviews yet, updated 1 week ago.
- 4.
Mizzox InvoicesFewer than 10 active installs. No reviews yet, updated 2 months ago. Tested only up to WordPress 6.8.12.
All 4 plugins tagged “nip”

Nip Finder
#20,352by codepress4 months ago
Automatyczne dane firmowe z GUS do WooCommerce. Szybsze zamówienia B2B, zero błędów w fakturach!
- Installs
- 50+
- Rating
- –
- Downloads
- 0/day

Yzukar B2B Invoice Fields for KSeF
Up in the last 7 days:10,831#59,392by rakuzy2 months ago
Collect the Polish NIP and B2B invoice data at checkout, validate the NIP checksum locally, export orders to CSV. Classic and block checkout.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day

Ksefshop Invoices for WooCommerce
Down in the last 7 days:7,277#70,155by Ksefshop13 days ago
Issues Polish KSeF e-invoices (FA(3)) for paid WooCommerce orders with a NIP via the Ksefshop service: NIP at checkout, refund corrections, PDF.
- Installs
- <10
- Rating
- –
- Downloads
- 6/day

Mizzox Invoices
Down in the last 7 days:13,366#74,126by Mizzox2 months ago
Plugin integrating Mizzox application with WooCommerce, enabling automatic Mizzox invoice generation based on WooCommerce orders.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day