AllTools.dev is a modern, fast, free online toolkit built for people who need quick, accurate calculators and converters without signing up, creating an account, or wading through cluttered interfaces. The platform offers 500+ tools across finance (mortgage calculators, loan amortization, compound interest, currency conversion, debt payoff, retirement planning), health (BMI, calorie needs, pregnancy tracking, ideal weight, body composition), math (scientific, statistical, geometric, percentage, fraction), science and engineering, date and time utilities, unit conversions (volume, length, temperature, power, area), developer utilities (JSON, regex, JWT, hashing), and interactive math and algorithm visualizations. Every tool is free and works instantly in the browser. No accounts, no paywalls, no sign-in walls, no data collection beyond standard analytics. Calculations happen client-side for speed and privacy. Unlike older established calculator sites that grew through 20 years of ad-heavy layouts and outdated UX, AllTools.dev is built fresh on Astro with a clean, mobile-first, accessibility-conscious interface. New calculators ship weekly based on user demand. Ideal for: students doing homework, developers needing quick conversions, finance-minded folks planning loans and investments, professionals doing scientific or engineering calculations, and anyone who just needs a fast answer without installing an app.

Muxtly is a free, privacy-first platform offering 300+ online tools that run entirely in your browser. No data is ever uploaded to a server — every calculation, conversion, and generation happens locally on your device.

Our tools span 10 categories: Finance (mortgage, loan, APR, annuity), Health (BMI, BMR, calorie, water intake), Math (scientific, fraction, statistics, trigonometry), Text Tools (case converter, character counter, Base64), Generators (QR code, barcode, password, color palette), Converters (area, angle, data storage, energy), Date & Time (age, hours, countdown), Construction (concrete, paint, carpet), Academic (GPA, grade, typing speed), and Fun (dice roller, bingo, Pomodoro timer).

What makes Muxtly different?

• Privacy by Design: Your inputs never leave your browser. No accounts, no cookies, no analytics on your data.
• 9 Languages: Full translations in English, Spanish, French, Portuguese, German, Japanese, Korean, Simplified Chinese, and Traditional Chinese.
• Lightning Fast: Static-site architecture means instant page loads. Works offline once loaded.
• Dark & Light Themes: Auto-detects your system preference, with a manual toggle that persists.
• No Paywalls: Every tool is free, forever. No premium tiers, no locked features.

Whether you're a student calculating GPA, a homeowner comparing mortgage rates, or a developer encoding Base64 — Muxtly has a tool for that.