Developer Pocket

Developer Pocket is a fast, native toolbox for the utilities you reach for every day — completely free, no ads, no account, no internet connection required. TOOLS INCLUDED • JSON Formatter — pretty-print, minify, and validate with precise error locations • JSON Diff — compare two JSON documents and see what changed • JSON Merge — deep-merge two documents (RFC 7386) • JSON Patch — apply RFC 6902 add/remove/replace/move/copy/test operations • JSONPath Tester — query JSON with $.user.roles[0]-style paths • JSON Schema Validator — validate an instance against a JSON Schema • JSON Repair — fix trailing commas, single quotes, unquoted keys, and more • JSON Flatten/Unflatten — dot-notation flatten and reverse • JSON Lines — convert between a JSON array and JSON Lines • JSON Escape/Unescape — escape text for embedding, or unescape it back • YAML Converter — JSON ↔ YAML • CSV Converter — JSON ↔ CSV • JSON to TypeScript — infer TypeScript interfaces from a JSON sample • JSON to Swift — infer Codable structs from a JSON sample • JSON to Go — infer Go structs with JSON tags • JSON to Python — infer Pydantic models • JSON to Kotlin — infer kotlinx.serialization data classes • JSON to SQL — infer a CREATE TABLE and INSERT statements • JSON to Markdown — render as a Markdown table • JWT Decoder — inspect header, claims, and expiry at a glance • JWK Viewer — inspect a JSON Web Key or key set • Base64 Encoder/Decoder — text and URL-safe variants • URL Encoder/Decoder — component or full-URL modes, with query parameter breakdown • UUID Generator — bulk generate v4 UUIDs, upper/lowercase, with or without hyphens • Unix Timestamp Converter — live clock plus both-direction conversion with timezone support • Hash Generator — MD5, SHA-1, SHA-256, and SHA-512 digests • Regex Tester — live match highlighting and capture groups • Color Converter — HEX, RGB, and HSL, both directions • QR Code Generator & Scanner — create codes or scan them with your camera PRIVATE BY DESIGN Every tool runs entirely on your device. Nothing you type, paste, or scan is ever sent anywhere — Developer Pocket doesn't have a server to send it to. FREE, NO CATCH All twenty-nine tools, unlocked, forever. No subscription, no paywall, no ads. Built natively for iOS with a modern, glass-inspired interface.