Best form protection plugins for WordPress
The most popular form protection plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Anti-Spam Filter for Gravity Forms leads with 20+ active installs, ahead of Phone Validator for WPForms (20+) and FormShield (10+). All 8 plugins tagged “form protection” 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 8 form protection plugins
- 1.
Anti-Spam Filter for Gravity FormsThe most installed form protection plugin, with 20+ active installs. Only 1 review so far, last updated 1 year ago. Tested only up to WordPress 6.7.11.
- 2.
Phone Validator for WPForms20+ active installs. Only 1 review so far, updated 2 weeks ago.
- 3.
FormShield10+ active installs. No reviews yet, updated 6 months ago. Tested only up to WordPress 6.9.11.
- 4.
A1JSpamGuard10+ active installs. Only 3 reviews so far, last updated 1 year ago. Tested only up to WordPress 6.5.14.
- 5.
EchoFilterFewer than 10 active installs. No reviews yet, updated 6 months ago. Tested only up to WordPress 6.9.11.
- 6.
Hajik Form GuardFewer than 10 active installs. No reviews yet, updated 3 months ago.
- 7.
Opportify Fraud ProtectionFewer than 10 active installs. No reviews yet, updated 4 months ago.
- 8.
ProofShieldFewer than 10 active installs. No reviews yet, updated 4 months ago.
All 8 plugins tagged “form protection”

Anti-Spam Filter for Gravity Forms
Down in the last 7 days:466#25,477by teamtp1 year ago
A lightweight anti-spam solution for Gravity Forms that blocks unwanted submissions using keyword filtering and Cyrillic text detection.
- Installs
- 20+
- Rating
- 2.0(1)
- Downloads
- 3/day

Phone Validator for WPForms
Up in the last 7 days:44#25,708by Ilyntiy15 days ago
Stops junk phone numbers and bots in WPForms: number checks for any country, input mask, honeypot, per-IP limits and a submission history.
- Installs
- 20+
- Rating
- 5.0(1)
- Downloads
- 6/day

FormShield
Down in the last 7 days:2#29,023by GDimitrov6 months ago
FormShield protects your forms from bot spam using advanced pattern matching and behavioral analysis. No annoying captchas, unlimited forms.
- Installs
- 10+
- Rating
- –
- Downloads
- 0/day

A1JSpamGuard
Up in the last 7 days:1,199#44,989by A1JBot1 year ago
A1JSpamGuard is a simple and efficient WordPress plugin to block spam in comments, registration forms, and contact forms.
- Installs
- 10+
- Rating
- 5.0(3)
- Downloads
- 2/day

EchoFilter
#50,235by eugeniodev6 months ago
Stop fake leads in real time. No CAPTCHAs. Invisible to real users.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day

Hajik Form Guard
Down in the last 7 days:2,733#56,561by hatanaka3 months ago
Stops form spam and filters unsolicited sales emails using the Hajik cloud service. Built for Japanese-language forms. Account required.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day

Opportify Fraud Protection
#57,308by Opportify4 months ago
Stop fake leads, form spam, and bot registrations before they reach your database. AI-powered fraud scoring across 100+ signals. No CAPTCHA required.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day

ProofShield
Down in the last 7 days:7,529#59,785by Softwaregarten4 months ago
Block automated abuse on WordPress login, comments, and forms with privacy-friendly, self-hosted Proof-of-Work protection.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day