Crintech Toolkit

Offline developer tools

Free · Designed for iPad. Not verified for macOS.

18+ developer utilities in one app: JSON, regex, hashes, JWT, UUID, passwords, converters, an HTTP client, and a snippets library. No accounts. No tracking. Crintech Toolkit bundles the utilities a developer (or any tinkerer) reaches for every day into a single app — no accounts, no ads, and nothing sent anywhere. TEXT & DATA • JSON formatter — format, minify, validate • Regex tester — match highlighting and example patterns • Text counter — words, characters, lines, paragraphs, reading time • Text diff — compare two texts line by line • Markdown preview — live rendering ENCODERS • Base64 — encode/decode, URL-safe variant • URL encoder — percent-encoding, query mode • Hashes — MD5, SHA-1, SHA-256, SHA-384, SHA-512 • HTML entities — encode/decode • JWT decoder — inspect header and payload (local decode) GENERATORS • Lorem Ipsum — paragraphs, sentences, or words • UUID generator — v4, in batches, uppercase or dashless • Password generator — configurable, with entropy in bits • QR generator — turn text, URLs, or vCards into a QR code CONVERTERS • Color converter — HEX ⇄ RGB ⇄ HSL with sliders • Timestamp — Unix epoch ⇄ ISO 8601 • Number base — binary, octal, decimal, hexadecimal • Case converter — camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, and more NETWORK • HTTP client — fire GET/POST/PUT/PATCH/DELETE requests at any REST API with custom headers and body, and inspect the response: status code, timing, and pretty-printed JSON. Ships with ready-to-run examples. SNIPPETS Save chunks of text, code, or tool output into a local library with tags and search. Everything stays on your iPhone — no cloud, no sync. PRIVACY • Works offline — the only network traffic is requests you fire yourself in the HTTP client • No accounts, no sign-up • No tracking, no telemetry, no ads • No in-app purchases Three languages (Spanish, English, Basque), light/dark mode, custom accent colors, and a "tip of the day" widget.

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The developer, CRISTOBAL RUIZ LORITE, 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

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

    Seller
    • CRISTOBAL RUIZ LORITE
    Size
    • 13.4 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 18.4 or later.
    • iPhone
      Requires iOS 18.4 or later.
    • iPad
      Requires iPadOS 18.4 or later.
    • Mac
      Requires macOS 15.4 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.4 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Crintech Studios