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Security and passwords software
Small, specific security and passwords tools, ready to use today. 634 products listed. Of these, 344 have a free plan, 32 sell for a one-off price, 17 carry proof such as verified revenue, update history or uptime.
- BotBlocker
WordPress plugin that blocks scrapers, fake search crawlers and password guessing bots before they reach your pages.
Free plan · Security and passwords
- BotCost.dev
Reads your server logs in the browser to show which AI crawlers hit your site and what they cost, then writes rules to block them.
Since 2026
Free · Website analytics · Developers
- Bramble
A password manager that syncs encrypted vaults straight from device to device, with no cloud server and no account needed.
Security and passwords · Individuals and families
- Breach Insider
Plants fake customer accounts in your systems and alerts you if their details show up online after a data breach.
Since 2017
Free trial · Security and passwords · Online sellers
- Burner Mail
A browser extension that makes a separate forwarding address for every site you join, so you can block senders later.
Security and passwords · Individuals and families
- Burnshot
Send an image or PDF through a link that is encrypted in your browser and deleted once the recipient has viewed it.
Since 2026
Free · Security and passwords
- BX
Starts AI apps such as Claude Code or Cursor on your Mac in a sandbox that sees only the folders you pick.
Since 2026
Security and passwords · Individuals and families
- Cachety
Adds a watermark naming the purpose and recipient to ID and document copies, all done in your browser without uploading.
Since 2026
Free · Documents and e-signature · Individuals and families
- CallWall
An iPhone app that scores unknown numbers from community reports and public data, and blocks spam calls and texts above your threshold.
Free plan · Security and passwords · Individuals and families
- Canny Pigeons
Reads DMARC reports for your domain, shows who sends mail as you, and helps you move step by step to blocking spoofers.
Free plan · Security and passwords
- Cap
Free self-hosted CAPTCHA that checks visitors with background proof-of-work and browser tests instead of puzzles, a swap for reCAPTCHA.
Free · Security and passwords · Developers
- CAPTCHA 4WP
WordPress plugin that puts reCAPTCHA, hCaptcha or Turnstile on login, comment and checkout forms to block spam bots.
Security and passwords
- Captcha.eu
Bot and spam protection for websites that blocks bots without puzzles, cookies or tracking, hosted in Austria.
Subscription · Security and passwords
- CarryPass
An open-source password manager that runs in the browser, works offline and lets teams share credentials that expire or get revoked.
Since 2025
Free · Security and passwords
- Cerbos
Authorization service that lets engineering teams define access policies in one place and check permissions for users and AI agents.
Security and passwords · Developers
- CertAvert
Checks SSL certificates for expiry, trust and chain problems, and emails you before a certificate runs out.
Since 2026
Free plan · Uptime and monitoring · Developers
- CertKit
Discovers, renews and deploys SSL certificates across servers and appliances for IT teams and MSPs, then watches for expiry.
Since 2026
Subscription · Uptime and monitoring · Developers
- CertObserver
Finds hosts under your domains from certificate logs, watches their SSL certificates and warns you before they expire.
Since 2026
Free trial · Uptime and monitoring · Developers
- CertPulse
Tracks security certificates across cloud accounts and public sites so operations teams spot expiring or broken renewals early.
Since 2026
Free plan · Uptime and monitoring · Developers
- Check4ID
Reads the chip and MRZ on passports and ID cards with a phone so shops and venues can check identity and age.
Security and passwords · Shops and retail
- CipherStash
Encrypts Postgres fields so data stays searchable but can only be decrypted under per-user identity policies.
Since 2025
Security and passwords · Developers
- Citadel
An encrypted vault for passwords, cards and identity documents that syncs between iPhone, Mac and Windows.
Free plan · Security and passwords · Individuals and families
- Clampd
A self-hosted proxy that checks every tool call an AI agent makes against policy and blocks risky ones.
Since 2026
Free plan · Security and passwords · Developers
- CleanTalk
Blocks spam sign-ups, comments and form submissions on websites without a CAPTCHA, through plugins or an API.
Security and passwords
- Cloud Snitch
Shows what is happening in your AWS account so teams can spot unknown activity and meet compliance needs.
Since 2025
Uptime and monitoring · Developers
- Cloud-IAM
Runs, upgrades and monitors Keycloak for you on the cloud you pick, hosted in Europe.
Free plan · Security and passwords · Developers
- Clova.Email
Gives every company you deal with a separate email address, locked to that sender, so leaks and spam are easy to cut off.
Since 2026
Free plan · Security and passwords · Individuals and families
- Codebook Password Manager
Password manager that keeps encrypted credentials on your own devices, with you holding the keys, across phone and desktop.
Security and passwords · Individuals and families
- Codekeeper
Holds copies of your software's source code and SaaS setup in escrow so customers can recover them if the vendor fails.
Since 2017
Subscription · Security and passwords · Software companies
- Comp AI
Helps companies prepare for GDPR, HIPAA, SOC 2 and ISO 27001 audits by gathering evidence automatically, with auditor and pen test bundled.
Since 2025
Security and passwords · Software companies
- ContextFort
Logs the files, processes and network calls AI coding agents touch on engineers' laptops, for security teams.
Since 2026
Security and passwords · Developers
- Crow Backup
Free desktop app that backs up your encrypted files onto friends' computers while you store theirs in return.
Since 2021
Free · Security and passwords · Individuals and families
- CrowdHandler
A hosted waiting room that queues visitors during traffic spikes so shops and ticket sites stay up and bots are held back.
Free plan · Online shops · Online sellers
- CrowdSec
Blocklists of known attacking IP addresses, gathered from a shared network, so teams can block attacks before they land.
Since 2020
Security and passwords
- Cryptomator
Encrypts your files before they go to Dropbox, Google Drive or OneDrive, with a team version to manage shared access.
Free · Security and passwords
- Cuepass Password Vault
Phone vault for passwords and private files, stored on the device, with autofill and emergency access.
Security and passwords · Individuals and families
- DataBlur
Browser extension that blurs names, emails and numbers on web pages before you share your screen or record.
Since 2026
Free plan · Security and passwords
- Databunker
Secure store for customer personal data and sensitive files, with access control and audit logs, to help teams meet privacy rules.
Security and passwords · Health and clinics
- DataVault Password Manager
Password manager that stores logins and private records and syncs them across phones and computers without a central cloud vault.
One-off payment · Security and passwords · Individuals and families
- Decoy
Gives each online account you open its own private email address, password, passkey and 2FA code, which you can delete later.
Security and passwords · Individuals and families
- DeepFace Cloud
A hosted API that checks whether two photos are the same person and returns face embeddings, with no servers to run.
Since 2026
Free plan · Security and passwords · Developers
- DefendWP Firewall
A free WordPress plugin that blocks attacks on known plugin and theme flaws using community-sourced patches.
Free · Security and passwords
- Detail
Runs deep scans of your codebase to find serious bugs like security holes or billing errors, then fixes the top ones.
Since 2025
Free trial · Security and passwords · Developers
- digitup
Scans a site built with AI tools for leaked keys and broken pages, explains fixes in plain words, then keeps checking it.
Since 2026
Uptime and monitoring
- DMARC Defender
Monitors DMARC reports and checks SPF and DKIM across your domains to stop spoofing and meet bulk sender rules.
Since 2026
Uptime and monitoring
- DNSAudit.io
Scans a domain's DNS records for misconfigurations and exposed services and grades its security.
Since 2025
Free plan · Uptime and monitoring · Agencies
- DNSniffer
Searchable index of registered domains with new registration feeds, subdomain lookup, lookalike checks and brand alerts.
Since 2026
Free · Security and passwords · Developers
- Dont Text
iPhone filter that moves texts from unknown senders into junk when they match keywords you choose
Free plan · Security and passwords · Individuals and families
- DontCallMe
Look up a phone number to see if others reported it as spam or scam, and let the app block those calls on your phone.
Free · Security and passwords · Individuals and families
- Donut Call
An iPhone app that stops spam calls by blocking every number that starts with a prefix you choose.
Free · Security and passwords · Individuals and families
- Double Check
App that tells you in plain English whether a message, letter or link is a scam, and can alert family members.
Free · Security and passwords · Individuals and families
- DropScam
An iPhone app that helps older people check suspicious calls, texts and mail, and share them with family for a second opinion.
Free · Security and passwords · Individuals and families
- Ekko
A Chrome extension that encrypts the messages you type in Instagram, WhatsApp, Telegram and other chat apps.
Since 2026
Security and passwords · Individuals and families
- Email Encoder
WordPress plugin that hides the email addresses and phone numbers on your pages from scraper bots to cut spam.
Free · Security and passwords
- Email OTP Authenticator
A WordPress plugin that emails one-time codes for password-free login, sign-up and two-step checks.
Free plan · Security and passwords
- EmailOnDeck
Gives you a throwaway email inbox in two steps so sign-ups, trials and tests stay out of your real inbox.
Free plan · Security and passwords · Individuals and families
- EnvMaster
Keeps environment variables and secrets for all your projects encrypted in one place and loads them from the terminal.
Since 2026
Subscription · Security and passwords · Developers
- Etchv
An API that hides a unique watermark in each image, PDF or video you send out so you can trace which copy leaked.
Since 2026
Security and passwords · Creators and writers
- Everest Backup
WordPress plugin that backs up, restores and moves sites, saving copies to cloud storage on a schedule.
Free plan · Security and passwords
- eWallet
Stores passwords and other private details in an encrypted wallet you can open on phone or desktop.
Security and passwords · Individuals and families
