Aldo's Toolkit

Your pocket dev + security toolkit: hashes, JWT, Base64, a biometric password vault, Sec+/eJPT flashcards with an AI tutor, notes, and games. Free, no ads, offline.

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.