Interactive Tools & Calculators

Interactive propulsion calculator for FPV quads, RC planes, and heavy-lift UAVs. Every curve is interpolated directly from real, bench-tested motor and propeller measurements. Never guesses or extrapolates beyond measured datasets.

Commercial-grade quoting and billing engine for FDM 3D printing jobs. Calculates exact material mass, machine power wattage, hardware depreciation, operator prep/post-processing labor, and risk contingency buffers.

Token counter and multi-LLM cost calculator. Accurately counts tokens via byte-pair encoding (BPE) and compares inference pricing across OpenAI (GPT-4o, o1), Anthropic (Claude 3.5), Google (Gemini 1.5), and DeepSeek models.

Offline-capable developer swiss army knife. Contains essential conversion, formatting, and encoding utilities that run 100% inside your browser sandbox with zero telemetry or network calls.

Retro space combat engine built from scratch on the browser Canvas API without game engines. Features particle systems, progressive wave scaling, boss encounters, and global persistent leaderboards.

Mortgage calculator built for buying a home in Greece. Payment, interest, the Law 128/1975 levy and every purchase cost (who is paid and for what), with extra repayments, a moving Euribor and real-calendar day-count. Opens in Greek; switch to English with one click. Everything is calculated in your browser.