Best freemium Security tools in 2026

These are the 5 most upvoted freemium Security products on IndieNeed, out of 5 listed. The pricing is what each maker chose when submitting; check the product's own site for current prices. The order comes from upvotes, not payment.

Ranked products

1. 1

   Lock It: Calculator Vault

   Real calculator hiding an encrypted photo, notes & 2FA vault

   I'm the developer of Lock It: Calculator Vault. It's a real calculator; enter your secret equation and press = to open a private vault.

   Freemium1 upvoteSecurity
2. 2

   HOL Guard

   Ask-first local guardrails for AI coding agent actions

   HOL Guard is a local checkpoint between AI coding agents and your machine. Before an agent runs a shell command, reads a secret, calls an MCP server, or installs a package, HOL Guard checks the action against your…

   Freemium1 upvoteSecurity
3. 3

   SayDo

   Offline Voice and Reader

   SayDo is a free offline voice keyboard and text reader for Android. Speak to type messages, emails and notes in any app, and listen to articles and documents read aloud.

   Freemium1 upvoteAI
4. 4

   KJMailDesk

   Instant, Private, Disposable Emails

   KJ MailDesk offers instant disposable email addresses to protect your real inbox from spam. With one-click setup, password protection, real-time email delivery, and optional premium features, it’s ideal for quick…

   Freemium0 upvotesDeveloper Tools
5. 5

   Assure

   Continuous technical compliance for WordPress

   Assure brings continuous technical compliance inside WordPress. It discovers risks across your scripts, forms, and integrations; audits against built-in GDPR (59 controls), OWASP Top 10 2025 (38), and NIST CSF 2.0 (17)…

   Freemium0 upvotesCMS

See all the best Security tools at every price, or every product on the Security category page.