Everyday Utility Tools, Zero Telemetry.
High-performance calculators, unit converters, and media optimizers running directly and privately inside your browser memory.
MPG to L/100km Converter
Convert fuel efficiency between Miles Per Gallon (US/UK) and Liters per 100km.
Cycling Calories Calculator
Calculate calories burned cycling based on body weight, speed, and ride duration.
Days in Year Counter
Calculate days, weekdays, and working days remaining in any year.
Force Calculator
Calculate force using Newton’s second law (F = ma).
IQ Test Score Calculator
Complete logical reasoning questions to estimate your IQ score range.
Attractiveness Quiz
Score self-care, grooming, style, and confidence across key dimensions.
NY Sales Tax Calculator
Calculate NY sales tax with the 4% state rate and 8.54% average combined rate for 2026.
BAH Calculator 2026
Calculate your 2026 Basic Allowance for Housing (BAH) and compare annual tax savings.
Percentage Increase Calculator
Calculate the percentage increase or decrease from one value to another.
Butter Measurement Converter
Convert butter between sticks, cups, tablespoons, teaspoons, grams, ounces, pounds, kilograms, and milliliters instantly.
Business Day Calculator
Calculate the date after adding business days, or count business days between two dates. Excludes weekends automatically.
Time Calculator
Add or subtract hours, minutes, and seconds, and calculate duration between two times.
About ToolSlash Engine
ToolSlash is a high-performance utility platform engineered for speed, privacy, and efficiency. Our core engine powers a wide array of everyday tools - from quick converters to sophisticated text and media processors. By running complex algorithms directly in your browser, we eliminate server round-trips to deliver a seamless, lightning-fast experience.
Frequently Asked Questions
- Are the utilities free?
- Yes, all utility tools on the ToolSlash platform are 100% free to use. There are no premium tiers, hidden fees, or paywalls.
- How is data processed?
- We strongly prioritize client-side processing. Most of our tools execute entirely within your browser memory for maximum speed and zero data exposure.
- Is my data saved?
- While some computationally heavy tools may require our backend engine, your files and data are never saved, stored, or analyzed by us.