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268+ free online tools for PDF, images, SEO, developers, color, and productivity. Fast, browser-based, and private — no signup, no installs, no limits. Search above or browse by category below.
Total tools26810.8K total uses
Categories13Active categories
Most usedJSON Formatter4.1K uses
Recently addedExperiment RandomizerNewest tool
Readability Checker
Analyze text readability with Flesch, Flesch-Kincaid, SMOG, Coleman-Liau, ARI, and Gunning Fog scores.
Used 0 times•Updated never
BMI Calculator
Calculate Body Mass Index from metric or imperial measurements with health-range guidance.
Used 0 times•Updated never
Age Calculator
Calculate exact age in years, months, and days from a birth date, with next birthday countdown.
Used 0 times•Updated never
EMI Calculator
Calculate loan EMI, total interest, and payment breakdown for any principal, rate, and tenure.
Used 0 times•Updated never
Loan Calculator
Calculate monthly loan payments, total interest, and a full amortization schedule for any loan.
Used 0 times•Updated never
Mortgage Calculator
Estimate monthly mortgage payments including principal, interest, taxes, insurance, PMI, and HOA.
Used 0 times•Updated never
Currency Converter
Convert amounts between world currencies using live mid-market exchange rates.
Used 0 times•Updated never
Unit Converter
Convert length, weight, temperature, volume, area, speed, time, data, pressure, force, energy, power, torque, density, and flow rate units instantly. Metric and imperial. Free, browser-based.
Used 0 times•Updated never
Calorie Calculator
Estimate daily calories from BMR and activity level, with targets for weight loss, maintenance, or gain.
Used 0 times•Updated never
GST Calculator
Add or remove GST from an amount with standard India slabs and CGST/SGST or IGST breakdown.
Used 0 times•Updated never
GST Invoice Generator
Create GST-compliant tax invoices with CGST, SGST, or IGST, HSN/SAC codes, and PDF export.
Used 0 times•Updated never
Discount Calculator
Calculate sale price, savings, and discount amount from percentage or fixed discounts.
Used 0 times•Updated never