30+ expert-built tools for finance, daily math, development, health, and file management — free, instant, zero signup.
Professional-grade finance tools with real-time charts.
Calculate monthly loan EMI, total interest, and view amortization schedule.
Compare loan options with different tenures, rates, and prepayment scenarios.
Plan wealth with systematic investments and step-up SIP projections.
Add or remove GST at 5%, 12%, 18%, or 28% with reverse calculation.
2026-27 Income Tax estimator with Old vs New regime comparison.
Convert between 10+ major world currencies with live-feel rates.
Calculate profit/loss percentage, markup, and margin from cost and selling price.
Quick calculations for dates, percentages, discounts, and more.
Calculate exact age in years, months, and days from date of birth.
Find the exact number of days, weeks, and months between two dates.
Calculate percentage of, increase/decrease, and ratio conversions.
Add or subtract hours, minutes, and seconds between time values.
Calculate final price after discount, savings amount, and stacked discounts.
Full-featured scientific calculator with trigonometry, logs, and memory.
Code formatters, generators, converters, and security utilities.
Beautify, minify, and validate JSON with syntax highlighting and tree view.
Encode text or files to Base64 and decode Base64 back to original content.
Generate QR codes for URLs, text, WiFi, and vCards. Download as PNG or SVG.
Cryptographically secure passwords up to 64 chars with entropy scoring.
Convert length, weight, temperature, volume, speed, data, and more.
Convert between HEX, RGB, HSL, and CMYK with visual color picker.
Compress JPEG and PNG images client-side. Adjust quality, preview results.
Evidence-based health and wellness estimation tools.
Calculate Body Mass Index with WHO category classification and chart.
Estimate daily calorie needs based on age, weight, height, and activity.
Find your ideal daily water intake based on weight and activity level.
Estimate due date and trimester timeline from last menstrual period.
Estimate body fat percentage using the U.S. Navy method.
Process PDFs, images, and files entirely in your browser — nothing uploaded.
Combine multiple PDF files into a single document. Drag to reorder.
Extract specific pages or split a PDF into individual page files.
Convert images between JPG and PNG formats instantly in-browser.
Resize images to exact dimensions or percentage with aspect ratio lock.
Compress files into ZIP archives or extract ZIP contents in-browser.