🛠️ General Tools

Free Online Utility Tools

Everyday tools for words, numbers, health, security and files — all free, no sign-up, results in seconds.

Count words, characters, sentences, paragraphs, reading time and keyword frequency instantly.

Text Case Converter

Convert text to uppercase, lowercase, title case, sentence case, camelCase, snake_case and more.

Remove extra spaces, tabs, duplicate lines, unwanted line breaks and hidden formatting.

CSV / Table Formatter

Convert CSV, TSV and messy rows into clean tables, Markdown, HTML, JSON or standard delimited files.

Percentage Calculator

Calculate percentages, discounts, increases, decreases and original values instantly.

QR Code Generator

Create QR codes for links, text, email, phone, SMS and Wi-Fi, then download PNG or SVG.

Invoice Generator

Create professional invoices with line items, taxes and discounts, then print or save as PDF.

Word Unscrambler

Enter jumbled letters and instantly find every valid word — perfect for Scrabble, Wordle and crosswords.

Password Generator

Create strong passwords — random, memorable word-based or PIN style. Copy in one click, nothing stored.

Convert weight, height, temperature and more — kg to lbs, cm to feet and inches, °C to °F instantly.

Crossword Solver

Enter known letters and blanks (e.g. C _ R) and find every matching word from a full English dictionary.

Calculate your Body Mass Index with metric or imperial units, with a visual gauge and health context.

Service quality slider, unequal splits, line items and per-person totals. Print a receipt in one click.

Your exact age live to the second — plus zodiac signs, birthday countdown, life milestones and world events.

Convert images, documents, data and audio files — all privately in your browser. Nothing is ever uploaded.

Also on ZingoTools

Finance Calculators

Mortgage, compound interest, loans, retirement, currency

Assistive Tools

Reading ruler, visual timer, dyslexia formatter — ad-free

Guides on passwords, file conversion, currency and more