DevKit: JSON, JWT & Dev Tools

About

DevKit: Essential Developer Tools, 100% Offline Stop juggling browser tabs. DevKit puts 30 powerful development utilities in your pocket—all working completely offline with privacy-first design. PRIVACY-FIRST DESIGN > 100% Offline: Every tool works without internet. Your data never leaves your device. > Local Storage Only: All processing happens on your device. No servers, no tracking. > No Personal Data Collection: We don't collect, store, or transmit any of your work. 30 ESSENTIAL TOOLS FORMATTERS > JSON Formatter: Beautify or minify JSON with error highlighting and tree view > HTML Formatter: Beautify, minify, and preview HTML with live rendering > CSS Formatter: Format and validate CSS with syntax highlighting > JS Formatter: Format and minify JavaScript > XML Formatter: Format and validate XML documents > SQL Formatter: Format and validate SQL queries PARSERS & DEBUGGERS > JWT Debugger: Decode tokens, inspect headers and payloads, verify signatures > Cron Parser: Parse cron expressions with next run calculations > Certificate Decoder: Decode X.509 certificates ENCODERS & DECODERS > Base64: Encode and decode Base64 strings > URL Encoder: Encode, decode, and parse URLs > HTML Encoder: Handle HTML entities > Hash Generator: Generate MD5, SHA-1, SHA-256, SHA-512 hashes > Backslash Escape: Escape and unescape special characters CONVERTERS > Timestamp: Convert Unix timestamps to readable dates > Case Converter: Transform between camelCase, snake_case, UPPER CASE, and more > Color Converter: Convert between HEX, RGB, HSL with live preview > YAML ↔ JSON: Convert between YAML and JSON with tree view > Number Base: Convert between Binary, Octal, Decimal, Hexadecimal > Hex ↔ Text: Convert between hex and ASCII > CSV ↔ JSON: Convert between CSV and JSON GENERATORS > UUID/ULID Generator: Create UUIDs and ULIDs instantly > QR Code: Generate customizable QR codes and export as images > Lorem Ipsum: Generate placeholder text > Random String: Generate secure passwords and API keys PRO-TIER UTILITIES > Diff Checker: Compare text with highlighted differences > RegEx Tester: Test regex with live match highlighting > Markdown Previewer: Preview Markdown with GitHub Flavored support > Line Sort: Sort and deduplicate lines > String Inspector: Analyze string statistics BUILT FOR MOBILE > Smart History: Auto-saves recent work (10 items free, unlimited with Pro) > Instant Paste: Smart clipboard detection > Quick Actions: One-tap copy, clear, share > Native Performance: Blazing fast, no loading screens > Light & Dark Modes: Beautiful design for any environment > Organized by Category: Easy browsing and discovery FLEXIBLE PRICING Pro: $9.99/month or $39.99/year (save 67%) 3-Day Free Trial | Cancel anytime PERFECT FOR: > Mobile developers debugging on the go > DevOps engineers managing infrastructure > Web developers formatting data > QA testers generating test data > Anyone needing dev tools without internet WHY DEVKIT? > 100% offline—no Wi-Fi required > Privacy-focused—data stays on device > Fast & reliable native performance > Regular updates with new tools > No ads, ever > Built by developers, for developers Download DevKit and take your essential tools anywhere. Terms of Use: Apple's Standard EULA (https://www.apple.com/legal/internet-services/itunes/dev/stdeula/)