10 Core Tool Categories
Explore 275+ production-grade utilities grouped across 10 core engineering domains. 100% private in-browser compute.
Everyday Math & Precision Solvers
Instant percentage calculators, aspect ratio resizers, fractional arithmetic, and scientific computing. 100% in-browser accuracy.
Personal Finance & Loan Calculators
Mortgage payoff simulators, compound interest models, auto loan amortization, and sales tax calculators with zero data logging.
Health, Body & Ergonomics Calculators
Clinical BMI evaluations, calorie expenditure, body measurements, and wellness metrics. Strict client-side confidentiality.
Unit, Measurement & Format Converters
Multi-dimensional unit conversions, metric to imperial transformations, color format bridges, and file format encoders.
Time, Date & Epoch Utilities
Global timezone converters, Unix timestamp decoders, date difference estimators, and schedule timers.
Text, Document & Writing Tools
Word counters, text diff comparators, case transformers, Markdown editors, and string manipulation utilities.
Design & CSS Visual Generators
Visual CSS generators, palettes, gradient designers, and vector SVG processors for modern web design.
Web Utilities & Everyday Calculators
Instant UUID generators, QR builders, Unix timestamp calculators, and unit converters running at sub-millisecond speeds.
Developer Tools & Code Utilities
Essential coding utilities, formatters, syntax linters, and AST development engines. 100% client-side privacy.
Security & Cryptography Suites
Client-side JWT inspectors, hash generators, encryption suites, and credential evaluators with zero server uploads.