High-performance, private in-browser developer utilities. Decode JWT tokens, translate cURL to Python/Go/Fetch, convert Unix epoch timestamps, build cron schedules, and format SQL queries with zero server uploads.
Decode JSON Web Tokens, inspect headers and claims, verify HMAC-SHA256 signatures with Web Crypto, and audit expiration dates with zero server leaks.
Convert cURL commands to production-ready code for JavaScript (Fetch & Axios), Python (Requests & Httpx), Go, Node.js, PHP, and Rust.
Live Unix epoch clock with bidirectional seconds/ms/μs conversion, relative time calculations, date offset math, and batch log converter.
Visual interactive cron schedule builder with plain-English human translation and next 10 scheduled execution dates simulator.
Beautify, format, indent, and minify SQL queries for PostgreSQL, MySQL, SQLite, T-SQL, and BigQuery with configurable keyword casing.
Transform raw JSON objects into clean TypeScript interfaces, type aliases, Zod validation schemas, and JSON Schema definitions with custom casing and nullability.
Visual Linux and Unix file permissions calculator. Convert between octal and symbolic modes, toggle SUID/SGID/Sticky bits, and generate recursive bash commands.
Interactive security headers generator (CSP, HSTS, CORS, X-Frame) & authoritative HTTP status code reference with RFC specs and SEO crawler impact.
Interactive visual Git workflow architect and command generator. Undo commits safely, generate cherry-picks, rebase, squash commits, and master branching recipes.
Bidirectional HTML entity encoder and decoder with Named, Decimal, Hexadecimal formats, JavaScript Unicode escapes, CSS escapes, and searchable character catalog.
CodePen-style live HTML, CSS, and JavaScript editor and code formatter. Real-time sandboxed preview rendering videos, images, and audio with integrated developer console and live JS REPL.
No. Super ToolKit processes your files 100% locally in your web browser using WebAssembly and client-side memory. Your data never leaves your device or gets transmitted to external cloud servers.
Yes! Super ToolKit provides unlimited free conversions with zero subscriptions, no ads, no watermarks, and no sign-up required.
Yes. Super ToolKit is an installable Progressive Web App (PWA) optimized for smartphones, tablets, and desktop computers. Once cached, it processes tasks completely offline without an internet connection.
