nomoat / Invisible Anti-Spam / Alternatives
Alternatives to Invisible Anti-Spam
Invisible Anti-Spam: Free WordPress plugin that blocks form spam with a small browser proof of work, without cookies, captchas or Google. Here are 24 other products that do a similar job. Of these, 21 have a free plan, 2 sell for a one-off price.
- ActiveLayer
Service that checks form, signup and comment submissions for spam without CAPTCHAs, via a WordPress plugin or REST API.
Subscription · Forms and surveys
- Maspik
A WordPress plugin that stops spam in contact forms using several checks instead of CAPTCHAs, with a log of what was blocked.
Free plan · Forms and surveys
- ALTCHA
CAPTCHA that blocks bot sign-ups and form spam without cookies or tracking, available as a WordPress plugin, self-hosted or managed.
Free plan · Security and passwords
- Antideo
APIs and a WordPress plugin that check IP location and reputation, emails and phone numbers to filter out fake form signups.
Free plan · Security and passwords · Developers
- Captcha Ajax
Free WordPress plugin that loads a fresh captcha on forms and logins, even on cached pages, without outside accounts.
Free · Security and passwords
- Form Block Pro
Make accessible forms inside the WordPress block editor, with a free version and a yearly paid tier.
Free plan · Forms and surveys
- FormKeep
Point your website's HTML form at this service to store submissions, filter spam and send them to email or other apps.
Since 2014
Free plan · Forms and surveys · Agencies
- HeroTofu
A form backend that collects submissions from any HTML form and sends them to email, Slack or Zapier, for static site builders.
Since 2021
Free plan · Forms and surveys · Freelancers
- ChatWall
A browser extension that hides personal and sensitive data in your prompts before they are sent to ChatGPT or Claude.
Since 2026
Free plan · Security and passwords
- Faable
Hosts apps from Git on European servers and adds user login through a hosted OAuth and OpenID Connect server.
Free plan · Security and passwords · Developers
- Ikiform
A form endpoint for any site that keeps every submission, emails you, and retries webhooks for days if your server fails.
Since 2025
One-off payment · Forms and surveys · Developers
- Advanced Form Integration
A WordPress plugin that passes form entries and WooCommerce orders on to CRMs, email tools and spreadsheets with no task limits.
Free plan · Forms and surveys
- Atomic Edge
A firewall at the network edge that stops login attacks, bots and plugin exploits on WordPress sites before they hit your server.
Free plan · Security and passwords · Online sellers
- Auto-Install Free SSL
Gets and renews free Let's Encrypt SSL certificates on cPanel shared hosting without command line work.
Free plan · Security and passwords
- BackWPup
Schedules encrypted backups of a WordPress site to cloud storage and restores or moves the site when needed.
Free plan · Security and passwords
- BlogVault
Backs up WordPress sites off server as changes happen, with one click restores, staging copies and host migrations.
Subscription · Website builders
- Brave
WordPress plugin for making popups, sticky bars, optin forms and quizzes to turn visitors into leads.
Free plan · Forms and surveys
- CloudFilt
Blocks scrapers, spam bots and fake signups before they reach your site, by plugin, API or a DNS change.
Free plan · Security and passwords · Online sellers
- Controls for Contact Form 7
Add-on for Contact Form 7 that tracks form submissions in analytics tools and sends people to a thank-you page, with no code needed.
Free plan · Forms and surveys
- Custom Contact Forms Pro
WordPress form plugin for taking Stripe or PayPal payments, signed waivers and bookings right inside the form.
Free plan · Payments and checkout
- E2Pdf
WordPress plugin that fills PDF templates from form entries and emails the finished documents.
Free plan · Forms and surveys
- Easy Form Builder
A WordPress plugin for building multi-step contact, payment, survey and registration forms by drag and drop.
Free plan · Forms and surveys
- Easy Post Submission
A free WordPress plugin that lets guests and members submit and manage posts from the public site, with approvals and spam checks.
Free · Forms and surveys · Creators and writers
- FluentAuth
Protects WordPress logins with two-factor checks, passkeys and attempt limits, and adds social and magic link sign-in.
Free · Security and passwords