Masquerade: A Quiet Toolbox

A quiet toolbox for builders.

Only for iPhone

$0.99 · Designed for iPhone. Not verified for macOS.

iPhone

A pocket of conversions for the data you carry — timestamps, JSON, JWT, UUID, color, base64, cron, hashes, diffs, QR. Offline. No tracking. No noise. Masquerade is a quiet toolbox for builders. Convert timestamps between epoch and ISO. Reformat JSON, YAML, and TOML. Decode base64 and JWTs. Read cron schedules in plain English. Move between hex, binary, decimal, and bytes. Translate colors across HEX, RGB, HSL, and OKLCH with WCAG contrast. Convert basis points to percent and back. Scan or generate QR. Then the deeper drawer: generate and inspect UUIDs and ULIDs. Hash with MD5 through SHA-512. Diff two texts. Subnet IPv4/IPv6 and CIDR blocks. Percent-encode URLs and edit query strings. Evaluate math expressions. Split and join lists. Generate passwords and tokens. Everything runs on-device. Nothing is collected, tracked, or sent anywhere. No accounts. No ads. No telemetry. Built with Cupertino. Typeset in IBM Plex.

Ratings & Reviews

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The developer, Chia-hao Tai, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Chia-hao Tai
    Size
    21.1 MB
    Category
    Utilities
    Compatibility
    Requires iOS 13.0 or later.
    • iPhone
      Requires iOS 13.0 or later.
    • iPod touch
      Requires iOS 13.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Howard Tai
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.