The Best Kali NetHunter Alternatives in 2026

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

Store, generate, and organize one-time password codes with 2FAuth, a self-hosted manager for individuals and teams.

Rawsec’s CyberSecurity Inventory catalogs more than 1,700 security tools and resources, helping practitioners browse a curated cybersecurity reference.

GitHub Advisory Database catalogs CVEs and GitHub-originated security advisories affecting open-source software.

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

Manage two-step verification tokens on Android with Aegis Authenticator, a free, open-source app.

Inspect and reverse engineer Android application packages using the Apktool utility.

Block internet access per Android app with NetGuard, a firewall that does not require root.

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.

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

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

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

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.

Steganography Online encodes a message into an image and can decode messages from images.

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

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

Fraunhofer FKIE maintains Malpedia, a reference that organizes information about malware families.