Percentage Calculator
Calculate percentage changes, increases/decreases, discounts, differences, and fractions instantly.
- ✓X% of Y & Y is what % of X
- ✓Percentage increase/decrease
- ✓Markup & discount computation
A comprehensive suite of 44+ client-side tools running 100% locally in your browser memory: 22 Utility Tools (9 mathematical & financial calculators, 10 document, QR & career generators, 3 developer/SEO tools, security scorecard & AI detector) alongside 22 cybersecurity research & recon utilities. Unlock the entire suite for a one-time fee of ₹500 (~$6 USD / €5.50 EUR) with lifetime access and zero subscriptions.
100% Client-side execution in your browser with zero server data logging and instant exports.
Calculate percentage changes, increases/decreases, discounts, differences, and fractions instantly.
Calculate precise age in years, months, days, hours, and seconds with birthday countdowns and astrological insights.
Count exact days, business working days, weekend days, and add/subtract time from any calendar date.
Simulate Home, Car, and Personal Loan EMIs with monthly amortization schedules and prepayment analysis.
Calculate Inclusive & Exclusive GST with CGST, SGST, IGST splits and itemized multi-product bill builder.
Compare Old vs New Tax Regime slabs, calculate standard deduction (₹75,000), 80C/80D/HRA exemptions, and in-hand salary.
Real-time exchange rates across 40+ world currencies with bank fee simulator and global rate board.
Convert Length, Weight, Digital Storage, Temperature, Speed, Area, Volume, and Time units with live formulas.
Compare global business hours with interactive time slider, working hours heatmap, and meeting invite copy.
Design employee badges, student IDs, and visitor passes with photo upload, barcode/QR code, and print sheets.
Create visiting cards with vCard QR codes (scan-to-save contact), dual sides, and multi-up print sheets.
Crop Indian (35x45mm), 8 & 10 photo sheets on 4x6" paper, US Visa, UK, Schengen, and Canadian standard photos.
Generate hotel guest folios and tax invoices with room charges, F&B, taxes, advance deposits, and A4 PDF export.
Generate payment receipts, HRA rent receipts with landlord PAN, and donation 80G receipts with instant PDF prints.
Create sales quotations and project estimates with itemized line items, payment terms, and client sign-off blocks.
Generate monthly employee salary slips with Basic, HRA, PF, ESI, TDS, and statutory A4 printable PDF vouchers.
Generate tailored, professional cover letters with 6 industry presets, custom tones, quantified impact metrics, and A4 PDF export.
Create legally structured Master Service Agreements (MSA), mutual NDAs, and project SOWs with IP transfer and A4 PDF print.
Generate custom high-resolution QR codes for UPI payments, WiFi connect, WhatsApp, and URLs with luxury color themes.
Audit HTTP security headers, TLS configuration, server leakage, and tech stack with A+ to F scorecard ratings.
Detect ChatGPT, Claude, and Gemini text with perplexity, burstiness, sentence heatmaps, and 1-click humanizer.
Generate cryptographically secure random passwords and passphrases with entropy meters and real-time HaveIBeenPwned breach checks.
Format, validate, and minify JSON, generate strongly-typed TypeScript interfaces, and export to CSV client-side.
Decode and inspect JSON Web Tokens (JWT) with syntax highlighting, claim expiration checks, and Base64URL conversions.
Generate SEO-optimized HTML meta tags with live visual simulators for Google SERP, Twitter/X cards, and WhatsApp bubbles.
Automate Google and GitHub search dorks for bug bounty recon, exposed credentials, .env files, and admin panels.
Calculate IPv4 subnet masks, usable host ranges, broadcast addresses, wildcard masks, and visual VPC subnet divisions.
Identify cryptographic hash types, detect Hashcat & John-the-Ripper modes, and generate instant MD5/SHA digests.
Build production-ready Content Security Policy (CSP) headers, evaluate bypass risks, and export to Nginx, Apache, Cloudflare, Next.js, and Vercel.
Audit domain DMARC policies, SPF records, and MX servers against Google & Yahoo 2024 compliance rules via DNS-over-HTTPS.
Zero-Telemetry Suite
22 client-side cybersecurity reconnaissance utilities and risk calculators (OWASP, CVSS 4.0, DREAD, EPSS). All cryptographic processing, token inspection, and subnet calculations execute strictly inside your local browser sandbox without server data collection.
Checking access...
Generate penetration test reports with OWASP Web/API/LLM mapping & PDF/HTML/DOCX exports.
Module locked. Complete ₹500 payment to access live interactive panels.