Zernar.com/Home
ZERNAR.COM/FEATURES

auto

Fuel Consumption Calculator

Free privacy-first fuel consumption and trip cost calculator. Calculate your fuel economy in metric and imperial units for you.

Open →

Power & Torque Converter: HP to kW, Nm to lb-ft

Instant automotive unit converter. Switch between Horsepower (hp), Kilowatts (kW), Metric HP (ps), and Torque units (Nm, lb-ft). Privacy-first, browser-only calculations.

Open →

Car Total Cost of Ownership Calculator

Calculate the true cost of owning your vehicle. Includes fuel, insurance, maintenance, and hidden fees. 100% private and browser-based.

Open →

Luxury SUV Ownership Cost in your country: The Uncensored Financial Reality

Calculate the exact TCO of a luxury SUV in $. Uncover hidden expenses from premium fuel octanes to proprietary air suspension repairs and dealership tricks.

Open →

Sedan Ownership Cost in your country: The Financial Champion

Calculate the long-term TCO of a sedan. Analyze aerodynamic fuel efficiency on major highways, accurate insurance rates in major cities, and long-term reliability secrets.

Open →

Electric Car (EV) Ownership Cost in your country: The Future of TCO

Analyze the true TCO of an EV in $. Compare the higher upfront MSRP against massive long-term savings in kWh charging, battery degradation, and zero oil changes.

Open →

Used Car Ownership Cost in your country: The Financial Hack

Calculate the true mathematical cost of a used car. Perfectly balance massive depreciation savings with increased preventative repair budgets and PPI strategies in $.

Open →

health

BMR & TDEE Calculator

Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) instantly. 100% private, client-side calculator based on the Mifflin-St Jeor equation.

Open →

pc

Power Supply Calculator

Calculate the perfect power supply (PSU) wattage for your custom PC build. Accurate estimations with overclocking support, transient spike buffers, and 100% local processing.

Open →

img

Free Online Image Editor

Professional grade online image editor. Edit photos, apply filters, and use layers directly in your browser. 100% privacy, no server uploads.

Open →

Polaroid Photo Generator

Easily turn any digital photo into a vintage Polaroid picture. Add custom handwriting captions, adjust zoom, and download for free with zero watermarks and absolute privacy.

Open →

programming

Image to Code Converter

Professional tool to convert images to Base64, calculate SHA-256 integrity, generate BlurHash placeholders or pHash fingerprints. 100% private, client-side Wasm processing.

Open →

safety

Secure Password Generator

Generate high-entropy, cryptographically secure passwords. 100% browser-based CSPRNG generation following NIST standards. No logs, no server storage.

Open →

math

Compound Interest Calculator

Calculate your investment growth over time with our privacy-first compound interest calculator. Account for inflation, capital gains taxes, and regular contributions.

Open →

About Us

Privacy-First Approach

At Zernar, we believe that your data belongs to you. That's why we've built our entire suite of tools—from image converters to complex calculators—using modern web technologies that run directly in your browser. When you use Zernar, your files and data never touch our servers. Fast, secure, and completely private.

Our Mission

To provide a universal, high-performance hub of essential utilities that respect user privacy without compromising on quality or aesthetics.

Technology

We leverage WebAssembly and modern JavaScript to deliver desktop-class performance within a lightweight web application. This ensures zero latency and absolute data security.