DevUtils vs JettDB

DevUtils is an offline-first developer toolkit with 37+ essential tools — all running privately on your device. No data leaves your phone. PAYLOADS & DATA • JSON Formatter & Validator — Pretty-print, minify, or validate JSON with syntax highlighting • YAML ↔ JSON Converter — Seamless conversion between YAML and JSON • XML Formatter — Indent and beautify XML documents • CSV ↔ JSON Converter — Transform between CSV and JSON formats • SQL Formatter — Format and beautify SQL queries • HTML Entity Encoder/Decoder — Encode and decode HTML entities • Backslash Escape/Unescape — Handle string escaping • Text Diff Checker — Compare two texts and highlight differences ENCODING & DECODING • Base64 Text Encoder/Decoder — Encode or decode Base64 strings • Base64 Image Encoder/Decoder — Convert images to/from Base64 • URL Encoder/Decoder — Percent-encode or decode URLs • HTML Preview — Render HTML snippets live on device • Markdown Preview — Render Markdown with live preview • QR Code Generator — Create QR codes instantly • QR Code Reader — Scan and decode QR codes SECURITY & IDENTITY • JWT Debugger — Decode, inspect, and verify JSON Web Tokens • Hash Generator — MD5, SHA-1, SHA-256, SHA-512 and more • HMAC Generator — Keyed hash authentication codes • UUID/ULID Generator — Generate unique identifiers on demand • Password Generator — Create strong, customizable passwords • RSA Key Generator — Generate RSA key pairs • Certificate Decoder — Inspect X.509 certificates AUTOMATION & REGEX • RegExp Tester — Build and test regular expressions with live matching • Cron Expression Parser — Decode and schedule cron jobs • Chmod Calculator — Unix file permission calculator • Lorem Ipsum Generator — Generate placeholder text TIME & NUMBERS • Unix Time Converter — Convert between Unix timestamps and dates • Date Converter — Parse and format dates in multiple formats • Number Base Converter — Convert between binary, octal, decimal, hex • Color Converter — Convert between HEX, RGB, HSL, and more • Byte Converter — Convert between data size units • Pixel Converter — Convert between px, pt, em, rem ADDITIONAL TOOLS • Text Inspector & Case Converter — Word count, case transforms • List Converter — Sort, deduplicate, transform lists • JSON to Code — Generate model code from JSON • Phone Number Parser — Parse and validate phone numbers • URL Parser — Break down URLs into components All tools work 100% offline. Your data never leaves your device.

JettDB is the JSON editor people reach for first. Whether you're a developer wrangling API responses, a data analyst cleaning up a messy export, or someone who just opened a .json file for the first time and wants to actually read it, JettDB makes JSON approachable on iPhone, iPad, and Mac. A visual tree editor lets you expand, collapse, edit, and rearrange JSON without touching a single bracket. A syntax-highlighted text editor sits one tap away for when you'd rather type. Toggle between them at will — your document stays the same. QUERY WITHOUT THE LEARNING CURVE Build jq-style queries by pointing and clicking. Pick an operation from a curated list — select, map, filter, group, sort, flatten, unique, and dozens more — and JettDB shows you the result instantly. Save the pipelines you use often to a personal library. The Ask in plain English pane understands phrases like "books with rating over 4" or "append a new tag to every entry." EDIT IN BULK Mass-edit operations let you add, rename, delete, or change fields across an entire document in one pass. Every change previews before it lands, and undo is always one tap away. FIND DUPLICATE RECORDS Point at any array of records, pick a field, and JettDB flags every group that shares a value — perfect for catching copy-paste mistakes in ids, names, or ISBNs. COMPARE, VALIDATE, AND CONVERT Side-by-side diff highlights exactly what changed between two documents. JSON Schema validation flags structural issues with clear, plain-language errors, and schema inference builds a starting schema from any document with one tap. Import from JSON, JSON Lines, the clipboard, or a URL; export to JSON, CSV, YAML, or XML, or send a document by email. BUILT FOR THE APPLE ECOSYSTEM Native SwiftUI on every device. iCloud sync keeps your library in step across iPhone, iPad, and Mac. The Mac build ships full menu bar support, middle-click autoscroll, and keyboard shortcuts for everything. Dynamic Type, VoiceOver, and high-contrast support are first-class — not afterthoughts. JSON5 SUPPORT Comments, trailing commas, unquoted keys, single quotes — JettDB reads and writes JSON5 when you want it to, and stays strict when you don't. PRIVATE BY DEFAULT Your documents live in your iCloud, not ours. No analytics, no tracking, no account required. Nothing leaves your device unless you choose to share it. A bundled sample library shows you the ropes; the in-app help is searchable, and the tutorial tips and jq cheat sheet are written for humans, not parsers. JettDB. The JSON editor people reach for first.