Best sig plugins for WordPress
The most popular sig plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Signature Field For Contact Form 7 leads with 700+ active installs, ahead of Ninja Forms Signature Contract Add-On (300+). All 2 plugins tagged “sig” 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.
Research this niche or see all plugins.
Top 2 sig plugins
- 1.
Signature Field For Contact Form 7The most installed sig plugin, with 700+ active installs. Only 3 reviews so far, last updated 3 years ago. Tested only up to WordPress 6.2.15.
- 2.
Ninja Forms Signature Contract Add-On300+ active installs. Only 3 reviews so far, updated 3 weeks ago.
All 2 plugins tagged “sig”

Signature Field For Contact Form 7
Up in the last 7 days:8#7,879by wpdebuglog3 years ago
Easily add drawing smooth signature field to Contact Form 7 form
- Installs
- 700+
- Rating
- 3.3(3)
- Downloads
- 7/day

Ninja Forms Signature Contract Add-On
Down in the last 7 days:7#10,667by approveme26 days ago
Instantly produce a legally enforceable & court recognized contract from a Ninja Form submission. Signature Pad Contracts. Proposals.
- Installs
- 300+
- Rating
- 5.0(3)
- Downloads
- 22/day