Security Tools

acme.sh automates SSL and TLS certificate management using a Unix shell script ACME client.

Analyze and reverse engineer software with radare2, a Unix-like framework and command-line toolkit.

This HTML sanitizer tool converts text with special characters into HTML-safe output.

Big Number Calculator evaluates very large mathematical expressions in a web browser.

Kismet monitors and captures Wi-Fi network traffic, with wireless intrusion detection and wardriving features.

This RSA calculator supports prime generation, encryption, and decryption.

Test how trackers and fingerprinting systems see your browser with Cover Your Tracks from the EFF.

Analyze a website with Web Check, an all-in-one tool described as an OSINT utility.

mess with dns provides an interface for viewing and editing DNS records.

Inspect iOS and macOS applications with Malimite, a decompiler project hosted on GitHub.

Analyze software with Ghidra, a framework for reverse engineering compiled programs.

Analyze software with Cutter, an open-source reverse engineering platform powered by Rizin.

Use Phishing Army’s blocklist to filter known phishing domains in Pi-hole, AdAway, Blokada, or other DNS filters.

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

Facia provides deepfake and liveness detection for identity verification and authentication.

Diceware Generator creates passphrases using Diceware word lists in 22 languages and offers formatting options.

Monitor network traffic with Sniffnet, a desktop network analysis application.

This converter changes infix expressions into postfix or prefix notation and shows the steps.

Use community-sourced threat intelligence and blocklists from CrowdSec to support security operations.

Explore ntop’s network visibility and cybersecurity offering; the supplied page gives little further detail.

Test HTTP security headers such as CSP and HSTS, then review recommendations for improving a site.

Nuclei scans for vulnerabilities using customizable templates written in YAML.

IP Intelligence detects proxies and VPN connections through an API intended to help prevent fraud.

Browse plugins for x64dbg, a Windows debugger used for reverse engineering and malware analysis.