toolnotch*
Simple. Fast. Secure.
Developer Utilities Suite
10 toolsFormat JSON, decode JWT tokens, generate UUIDs, test regex patterns, and generate hashes directly in your browser.
100% In-Browser Processing
Your files and sensitive data never leave your device. Zero cloud uploads, zero tracking, maximum security.
Complete PDF Toolkit
Merge, split, compress, and convert PDF documents in seconds without watermarks or file size limitations.
Image Optimizer & Converter
Compress photos, crop ratios, and convert between WebP, AVIF, PNG, and JPG while preserving pristine quality.
Calculators & Invoicing
Simulate mortgages, amortization schedules, compound interest, and generate professional PDF invoices.
Tech Interview Readiness
Real system architecture scenarios, database indexing deep-dives, TypeScript challenges, and backend patterns.
Interactive Quizzes & Trivia
Sports trivia, Formula 1, football history, and fun personality quizzes to test your knowledge.