Syntex is a clean, fast developer toolkit built for people who write code. Stop switching between browser tabs just to format a JSON response, generate a UUID, or convert a timestamp. Syntex puts 8 essential dev tools in one place — always offline, always instant. — TOOLS INCLUDED — { } JSON Formatter Paste any JSON and instantly format it with proper indentation. Validates structure and highlights errors so you know exactly what's wrong. b64 Base64 Encode plain text to Base64 or decode Base64 strings back to readable text. Great for working with APIs, tokens, and encoded payloads. uid UUID Generator Generate one or multiple UUIDs (v4) in lowercase or uppercase. Copy individually or copy all at once. ts Timestamp Converter Convert Unix timestamps to human-readable dates, or pick any date and get the Unix timestamp back. Shows current time live. Aa Text Case Transform text between 8 formats instantly: UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, PascalCase, and CONSTANT_CASE. ### Hash Generator Hash any string with MD5, SHA-1, SHA-256, or SHA-512. Results appear instantly as you type. Copy with one tap. ▦ QR Code Generator Generate a scannable QR code from any text or URL. Save directly to your Photos library or share with any app. /// Notes & Snippets A quick-access notepad for API keys, code snippets, curl commands, and anything else you need at your fingertips. Local, private, no sync required. — WHY SYNTEX — • Works 100% offline — no internet required • No accounts, no sign-in, no tracking • Dark interface built for developer comfort • Monospaced typography throughout • Instant results — no loading, no spinning Built by a developer, for developers.