Aldo's Toolkit

Aldo's Toolkit is a fast, offline-first set of developer and cybersecurity utilities, cert-prep study tools, a private password vault, a markdown notebook, and a few games - all in one app. Free, no ads, no tracking. LEARN (Security+ & eJPT prep) - Flashcards built from real study notes - Multiple-choice quiz with scoring - Daily question with a streak to keep you consistent - An AI tutor - ask any concept in plain English DEV + SECURITY TOOLS - Hash generator (SHA-1/256/512 + MD5) - Base64 encode/decode and a JWT decoder - UUID generator and a JSON formatter/validator - Color converter + picker (HEX / RGB / HSL) - A searchable command reference (nmap, hashcat, smb, and more) PASSWORD VAULT - Strong password generator with a strength meter - An on-device, biometric-locked credential vault - Your saved logins never leave your phone PRODUCTIVITY - Markdown notes with a live preview (plus a Learn Markdown lesson) - A regex tester with live match highlighting - A Pomodoro focus timer - A restaurant tip-out calculator with PDF export GAMES - 2048, Snake, a Caesar Cipher puzzle, and Hex Memory PRIVACY FIRST The toolkit is local-first - your notes, snippets, and progress live on your device. Sign in (optional) to sync across devices. No ads, no analytics, no third-party trackers, and you can delete your account any time from inside the app. Available in English, Spanish, Indonesian, and Turkish.