The Best 2FAuth Alternatives in 2026

Manage two-factor authentication codes with OTP Auth, an iOS app listed on the App Store.

Generate two-factor authentication codes in Chrome, Firefox, or Edge with the Authenticator extension.

UUID Tools generates individual or bulk UUIDs and supports multiple UUID versions.

Generate secure SSL configurations for selected web, database, and mail software.

View Toronto Police calls for service on a map that updates in real time, according to the supplied page description.

Kali NetHunter App Store provides an installable catalog of applications for the Kali NetHunter platform.

Cyberthreat Real-Time Map displays a map and statistics about cyber attacks using data from listed sources.

Snyk helps software teams identify and manage security risks in code and dependencies while building AI-enabled applications.

This WebAuthn guide explains an authentication API intended to replace passwords with stronger authentication.

Online Color Picker lets users select colors and view values such as RGB, HSL, and hexadecimal codes.

SSLMate CAA helps generate CAA DNS records and explains which certificate authorities support the record type.

A GitHub repository collecting a library of various cybersecurity resources, with folders for cybersecurity and hacking documentaries, cybersecurity YouTube channels, and free red team practice labs.

Solve reverse engineering challenges published on challenges.re, a challenge-focused site.

GoPlus offers Web3 security tools including audits, APIs, a user security hub, and a browser extension.

Search the National Vulnerability Database, a public resource for vulnerability information.

WhatsMyDNS checks DNS record propagation across global resolvers for record types including A, AAAA, MX, and TXT.

Add proof-of-work verification to websites with mCaptcha, a privacy-focused automated CAPTCHA system.

Use Metasploit to find security issues, verify mitigations, and manage authorized penetration testing assessments.

The Snyk Security Database provides vulnerability details and remediation guidance for packages and cloud configurations.

The URL Decoder and Encoder converts text between encoded and decoded forms, including JavaScript URLs.

Lucia was deprecated in March 2025. The website was updated in July 2026 and points to code/auth_session.ts as a single-file replacement for the NPM package and to the Auth Book for auth information.

DNSPerf compares the performance and uptime of enterprise and commercial DNS providers.

Search a community-curated collection of bug bounty writeups and learning resources.

Test a browser for privacy leaks, including exposed IP addresses, device information, and fingerprinting risks.