Developer Utilities & Architecture Tools
High-utility interactive tools for software engineers, full-stack architects, and startup founders. 100% client-side privacy.
Data, Types & Query Utilities
Convert raw JSON or API payloads into strictly typed TypeScript interfaces and types with instant export and formatting.
Inspect, decompose, and construct complex URLs and query strings with real-time bidirectional editing and JSON export.
Client-side JSON Web Token debugger and payload inspector with expiration verification and zero tracking.
Beautify and capitalize raw SQL queries with instant index and query performance recommendations.
Semantic side-by-side and inline line diff comparison for code snippets, JSON objects, and SQL scripts.
Convert curl commands into JavaScript Fetch, Axios, Python Requests, Node.js, and Go client code with 1-click copy.
Beautify, validate, sort, and minify JSON payloads with instant error detection and payload analytics.
Frontend, Design & Content Tools
Write, format, and preview Markdown in real-time with zero latency. Export clean HTML or download markdown files.
Design sleek multi-layered shadows, elevation presets, and frosted glassmorphic UI cards visually with instant CSS export.
Verify WCAG 2.1 AA & AAA compliance ratios for text, buttons, and UI components in real-time.
Convert raw SVGs into optimized CSS background data-URIs, Base64 strings, and typed React / Next.js JSX components.
Safely escape and unescape HTML characters for XSS defense, convert to decimal/hex entities, and strip tags.
Cryptography, Regex & Background Workers
Test, debug, and inspect regular expressions with real-time match highlighting, group capture, and developer presets.
Encode/decode Base64 and URLs, and compute hardware-accelerated SHA-256 and SHA-512 hashes via WebCrypto.
Generate cryptographically secure UUID v4, time-ordered UUID v7, NanoIDs, and API secret keys in bulk.
Construct standard cron schedule expressions with human-readable explanations for background workers and schedulers.
Convert Unix timestamps in seconds, milliseconds, and microseconds to UTC, ISO 8601, and local time with live ticker.
Calculate Linux file and directory permissions between octal values (755, 644) and symbolic notation (rwxr-xr-x).
Project Planning & Architecture Consultation
Interactive calculator to plan your web app's architecture, choose tech stacks, estimate delivery timelines, and generate a freelance proposal.
Schedule a 1:1 system design, architecture discovery, or code review video call with instant Calendly scheduling.