Welcome to urbi.tools — Free Browser Tools for Developers
Urbi Tools is a collection of free, privacy-first browser tools for developers and makers. No installs, no accounts, no tracking. Everything runs locally.
Word Counter Online: Count Words, Characters & Reading Time Instantly
Count words, characters, sentences, and reading time instantly. Free online word counter — no sign-up, updates as you type, works on any device.
How to Generate WhatsApp API Credentials: Complete Guide for n8n, Make.com & Zapier
Complete guide to setting up WhatsApp Business API — create your Meta app, get a permanent token, and connect to n8n, Make.com, or Zapier in minutes.
Base64 Decode Online — Instant, Free, Browser-Based
Decode any Base64 string online instantly — no uploads, no sign-up, 100% private. Free browser-based decoder with URL-safe and MIME support. Try it now.
ROI Calculator: Measure Your Return on Investment
Calculate your return on investment instantly. Enter your cost and revenue to see ROI percentage and net profit. Free online ROI calculator — no sign-up.
Compound Interest Calculator: See How Your Money Grows Over Time
Calculate compound interest on any investment. See how your money grows over time with different rates and compounding frequencies. Free online calculator.
Pregnancy Due Date Calculator: Estimate Your Baby’s Arrival Date
Calculate your estimated due date from your last period or conception date. See your current week of pregnancy too. Free pregnancy due date calculator.
Calorie Deficit Calculator: Find Your Daily Calorie Target
Calculate the calorie deficit you need to reach your weight loss goal. Enter your stats and target weight to get a daily calorie target. Free calculator.
BMI Calculator for Women: Find Your Body Mass Index
Calculate your BMI instantly using height and weight. See which category you fall in and what it means. Free BMI calculator for women — no sign-up needed.
Take Home Pay Calculator: See Your Net Pay After Taxes
Estimate your take-home pay after federal taxes, Social Security, and Medicare. Enter your salary and filing status for instant net pay. Free calculator.