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Powerful Web Engines

Everyday Utility Tools, Zero Telemetry.

High-performance calculators, unit converters, and media optimizers running directly and privately inside your browser memory.

Catalog

934
Developer

Logic Gate Simulator

Interactive logic gate simulator supporting AND, OR, NOT, NAND, NOR, XOR, XNOR gates with live truth tables and 2-stage compound circuits.

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Finance

401(k) Match Calculator 2026

Calculate your 401(k) employer matching dollars, paycheck contributions, instant return on investment, and unclaimed match.

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Finance

Missouri Unemployment Benefits Calculator 2026

Calculate Missouri DES unemployment compensation: weekly benefit amount (max $320/week), maximum 20-week duration, and base period wages.

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Finance

Roommate Rent Split Calculator 2026

Fairly divide apartment rent between roommates based on private bedroom square footage, private bathrooms, and shared common area amenities.

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Converters

BPM to MS Converter

Interactive BPM to milliseconds delay and reverb time calculator with note divisions, tap tempo, and audible metronome.

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Finance

Earthquake Insurance Cost Calculator 2026

Calculate California Earthquake Authority (CEA) and hazard earthquake insurance premiums, deductibles, and catastrophic protection.

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Finance

Pennsylvania Property Tax Calculator 2026

Calculate Pennsylvania property taxes across counties, school district millages, and Act 1 Homestead exclusions.

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Educational

Typing Speed Race

Race your car by typing fast in this free speed test game with real-time WPM.

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Finance

Stock Return Calculator 2026

Calculate total stock returns including capital appreciation, dividends, and annualized CAGR.

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Science

Momentum & Impulse Calculator

Calculate linear momentum (p = mv), kinetic energy, impulse (J = FΔt), and inelastic collision outcomes.

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Finance

Whole Life Insurance Cash Value Calculator & Growth Projection

Project permanent whole life insurance cash value growth, compounding dividends, cumulative premiums, and available policy loan limits.

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Math

Percent Variance Calculator

Calculate percent variance and dollar differences between budget and actual figures.

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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.