Professional Tools & Calculators

Comprehensive collection of developer tools and business calculators designed to streamline your workflow. From SEO optimization to financial calculations, all tools are free, secure, and built with 16+ years of industry expertise.

100% Free Secure & Private Instant Results

Business & Finance

Calculate costs, analyze investments, and track financial performance

Cloud Storage Calculator

Compare costs across AWS S3, Google Cloud, Azure, and other providers. Calculate monthly expenses and optimize storage classes.

Open Calculator

Crypto Profit & Loss Calculator

Calculate your cryptocurrency trading profits and losses with fees, taxes, and portfolio tracking.

Open Calculator

Compound Interest Calculator

Calculate compound interest for investments, savings, and loans. Visualize growth over time with charts.

Open Calculator

Tech Team Performance Calculator

Analyze your development team's velocity, efficiency, and productivity metrics. Track sprint performance.

Open Calculator

SEO & Web Development

Optimize your websites, validate code, and improve search engine rankings

Semantic HTML5 Inspector

Analyze your HTML for semantic structure, accessibility, and SEO optimization. Get actionable recommendations.

Open Inspector

Hreflang Validator

Validate hreflang implementation for international SEO. Check single URLs, multiple URLs, or sitemaps for multi-language sites.

Validate Hreflang

QR Code Generator

Create custom QR codes for URLs, text, contact info, WiFi, and more. Download high-quality images with customizable colors.

Generate QR Code

Password Generator

Generate secure, random passwords with customizable length and character types. Perfect for creating strong passwords for your accounts.

Generate Password

Need a Custom Tool?

Have an idea for a developer tool or calculator? I build custom solutions for teams and businesses. From API integrations to specialized calculators, let's bring your vision to life.

Request Custom Tool