Just an Offline Toolbox

Just an Offline Toolbox brings everyday text, developer, image, PDF, conversion, and QR utilities into one app. Its core features work offline, and your inputs, files, and results are processed on your device. Everyday tools include: • Unit Converter — 31 categories, 234 units, and 100 calculators for power, cooling, data center, and everyday use • 2FA Authenticator — generate TOTP codes locally from a Base32 secret or otpauth URI • QR Code Generator — turn text or URLs into QR codes and save or share a PNG • JSON Formatter — beautify, minify, validate, or convert JSON to CSV or YAML • Image and PDF utilities — compress, crop, resize, convert, merge, and split • Text and developer utilities — encoders, hashes, regex, timestamps, Cron, UUIDs, and more Available tools may vary depending on the selected language. Switching languages never uploads your data. Ash QR enables one-time encrypted message sharing through QR codes. The recipient creates an inbox QR that expires after 24 hours. The sender imports it, enters up to 900 bytes of text, and generates an encrypted QR code. After successful verification, the recipient device destroys the one-time private key before showing the plaintext. Privacy by design: • No registration or sign-in • No ads or analytics • No cloud history • Inputs, files, and results are never uploaded to developer-operated servers The app requests camera access only when you choose to scan a QR code. If you save or share a QR image, the app or share destination you choose handles it.