DevUtils vs dev

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.

Your agents keep working when you step away from the desk. dev-mux shows you what they're doing — and lets you answer them from anywhere. dev-mux is a cockpit for the terminal sessions running on your own machines: AI coding agents, builds, test runners, deploys, service logs. It connects to a hub you run yourself, so your code and your machines stay yours. THE FLEET AT A GLANCE See every machine and every session in one view. Live status tells you what's running, what finished, and — the one that matters — what is sitting blocked waiting for you. ANSWER WITHOUT SITTING DOWN When an agent stops to ask "apply this patch?", dev-mux tells you. Approve or decline straight from the notification, or open the session and answer in full. The thing that used to cost you a round trip to the desk now costs a tap. VOICE, ON DEVICE Talk to a session instead of typing at it. Tap the Talk button, say what you want, watch the words appear as you speak, tap again, and dev-mux sends it. Recognition runs entirely on your iPhone using Apple's on-device speech engine — your voice is never uploaded, not to dev-mux, not to your hub, not to anyone. The microphone can be opened between the tap that starts it and the tap that stops it. LIVE ACTIVITIES Pin a session to your Lock Screen and Dynamic Island. Watch a long build or a working agent without unlocking your phone. FILES Browse, read, and edit files on your machines. Fix the typo you spotted in the log without opening a laptop. A REAL TERMINAL WHEN YOU NEED ONE For the times a cockpit isn't enough, dev-mux includes a full terminal for the machines you already have access to — proper PTY, real keyboard, host-key verification that refuses a changed key. BUILT TO BE YOURS * No account. No sign-up. No email address. You point the app at your hub and that's the whole setup. * No analytics, no trackers, no advertising, no third-party SDKs collecting anything. * Your credentials live in the iOS Keychain, on this device only. * Everything talks to your hub and nothing else. dev-mux requires a hub to connect to your own machines. Setup instructions at dev-mux.com.