Dev Tool box vs hYYa ink

DevToolbox is an essential collection of developer utilities designed to streamline your coding workflow. Whether you're debugging APIs, encoding data, or formatting JSON, DevToolbox provides the tools you need in a clean, native interface. KEY FEATURES: • JSON Formatter & Validator Format, validate, and beautify JSON with syntax highlighting. Tree view visualization for better structure understanding. Built-in search functionality to find text within large JSON files. • URL Encoder/Decoder Quickly encode or decode URLs for API testing and web development. RFC 3986 compliant encoding for maximum compatibility. • Base64 Encoder/Decoder Convert text to Base64 and vice versa. Supports URL-safe Base64 and auto-padding. Perfect for encoding credentials, tokens, and data URIs. • JWT Decoder Decode and inspect JSON Web Tokens without external services. View header, payload, and signature details instantly. Automatically handles "Bearer " prefix. • Text Case Converter Transform text between various cases: camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE_CASE, dot.case, UPPERCASE, lowercase, and Title Case. Smart parsing for any input format. • Hash Generator Generate secure hashes using MD5, SHA-1, SHA-256, and SHA-512 algorithms. Essential for checksum verification and security testing. • Unix Timestamp Converter Convert between Unix timestamps and human-readable dates. Supports seconds and milliseconds. Multiple output formats including ISO 8601, UTC, and local time. • Number Base Converter Convert between Decimal, Binary, Octal, and Hexadecimal. Auto-detects input format with 0x, 0b, 0o prefix support. • String Escape/Unescape Escape special characters for JSON strings or unescape encoded text. Handles \n, \t, \", \\ and more. • Color Converter Convert HEX colors to RGB and HSL with live preview. Generates ready-to-use SwiftUI, UIKit, and CSS code snippets. WHY DEVTOOLBOX? • Native Performance: Built with SwiftUI for blazing-fast performance • Privacy First: All processing happens locally on your device • Universal App: Works seamlessly on iPhone, iPad, and Mac • Dark Mode Support: Easy on the eyes during late-night coding sessions • No Ads, No Tracking: Just pure functionality • Offline Ready: No internet connection required Perfect for mobile developers, web developers, API developers, QA engineers, security professionals, and students learning to code. DevToolbox is your pocket-sized development companion. Stop switching between websites and online tools - get everything you need in one native app.

Stop reading syntax. Start reading documents. hYYa ink opens the files developers, students and academics work with every day, and turns them into beautiful, readable, editable documents instead of walls of raw text. On Mac, iPhone, iPad and Apple Vision Pro. ONE APP, MANY FORMATS • Markdown — rendered live, with a formatting toolbar (bold, headings, lists, quotes, links) • JSON, YAML, TOML — collapsible trees, with JSON values editable right in the tree • CSV & TSV — a real table, editable cell by cell • Mermaid & Graphviz — diagrams drawn instantly, fully offline • LaTeX — math typeset beautifully • Jupyter notebooks — cells, code and text outputs, cleanly laid out • AsciiDoc, Org-mode, XML, diff, logs — readable at last EDIT, DON'T JUST VIEW Edit the source and watch the document update. On Mac, iPad and Apple Vision Pro, a split view shows source and preview side by side. Change JSON values and CSV cells right in the preview, and hYYa ink writes the file back in valid syntax for you. Start a new document in any format: tap the format label at the top of a document, then choose Graphviz, Mermaid, LaTeX, JSON and more. PDF — READ, SEARCH, ORGANISE, SIGN Open any PDF as a real document. Find any word with a live match count. Browse by page thumbnail or by the document's own contents. Is the file password-protected? hYYa ink asks for the password and opens it. To add text, tap the exact spot on the page and type, then drag the text into place. Draw your signature by hand, then place, resize and rotate it. Mark up a page freehand with pen, pencil and marker, or highlight, underline and strike through the text you select. Make a scanned PDF searchable: text recognition adds a text layer to scanned pages, so you can search them. It runs on your device, and your pages are never sent anywhere. You can also reorganise pages, protect a PDF with a password, compress it or add a watermark. Each of these, like making a PDF searchable, writes a NEW file and leaves the PDF you opened untouched. And you can compare two PDFs to see which pages differ. BRING YOUR OWN AI Use your own key with an AI service: OpenRouter, Groq, Together AI, or another service that works the same way. The AI actions work on every format except PDF: "Explain", "Summarize", "Reformat" and "Fix errors", plus "Make diagram", which writes Mermaid code for a diagram of your document. Your key stays on your device. Only the open document's text is sent, and only when you use an AI action. Every AI result says it was written by AI and names the model. PRIVATE BY DESIGN. BEAUTIFUL BY DESIGN. No accounts. No tracking. No data collection. Documents open and display on your device without an internet connection, and they never leave your device unless you ask. FREE TO READ, PRO TO EDIT Reading and previewing every format hYYa ink opens is free forever, and so are the "Export to PDF" and "Print" commands. On PDFs, search, the page and contents browser, and opening password-protected files are free too. A free 7-day trial unlocks everything. After that, a single one-time purchase unlocks editing and the AI features permanently, on Mac, iPhone, iPad and Apple Vision Pro. On Mac, select a file in Finder and press Space: Quick Look shows CSV and TSV as a table, JSON neatly indented, and Markdown, YAML and other text files as plain, readable text. From hYYa — more than apps. Companions you can trust.