Useful Online Tools - Generators, Validators and Utilities

Complete collection of free online tools: generators, validators, text converters, calculators, QR codes and much more. Essential tools for developers and users.

Development Tools

Essential tools for developers and programmers

UUID Generator

Generate universal unique identifiers

Generate UUID

Slug Generator

Convert texts to SEO-friendly URLs

Generate Slug

URL Encoder

Encode and decode URLs

URL Encoder

User Agent Generator

Generate browser User Agents for testing

Generate UA

Timestamp Converter

Convert Unix timestamp to readable date

Convert

Hash Generator

Generate MD5, SHA1, SHA256 and SHA512 hashes

Generate Hash

Base64 Encoder

Encode and decode text in Base64

Base64

JWT Decoder

Decode JWT tokens securely

Decode JWT

Fake Credit Card

Generate fake credit cards for testing

Generate Card

EAN Code Generator

Generate valid EAN-13 codes for testing and labels

Generate EAN

EAN Validator

Validate if an EAN-13 code is valid

Validate EAN

General Utilities

Useful tools for daily use and productivity

UTM Generator

Create URLs with UTM parameters for marketing campaigns

Generate UTM

Barcode Generator

Generate multiple barcode formats for testing and development

Generate Barcode

Password Generator

Generate secure and customizable passwords

Generate Password

QR Code Generator

Generate custom QR codes for links, text and data

Generate QR Code

WhatsApp Link

Create direct links for WhatsApp

Generate Link

Fancy Text

Transform texts into stylized letters for social media

Fancy Text

Character Counter

Count characters, words and text lines

Count Text

Random Letter Generator

Generate random letters for testing and development

Generate Letters

Lorem Ipsum Generator

Generate Lorem Ipsum placeholder text for design and development

Generate Lorem

Emoji Copy

Copy emojis easily with categories and search

Browse Emojis

My IP

See your IP address and location information

See My IP

Day Counter

Calculate the difference in days between dates, including business days

Calculate Days

Rule of 3

Calculate proportions and percentages with simple or inverse rule of three

Calculate Rule of 3

Age Calculator

Calculate your exact age in years, months and days from birth date

Calculate Age

Case Converter

Convert texts to uppercase, lowercase, capitalized and more

Convert Text

BMI Calculator

Calculate your Body Mass Index (BMI) and discover your classification

Calculate BMI

Anagram Generator

Generate anagrams of words or phrases instantly

Generate Anagram

Free Fire Nick Generator

Generate creative and stylish nicks for Free Fire

Generate Nick

RPG Name Generator

Generate creative names for RPG characters (fantasy, medieval, elf, dwarf, etc)

Generate Name

⚠️ Important Notice

The generated documents are valid only for testing and development. Do not use fake documents for fraudulent or illegal purposes. This tool is intended exclusively for developers and companies that need test data.

Why choose our tools?

Fast and Efficient

Generate valid documents in seconds with optimized algorithms

Secure and Private

All data is processed locally in your browser. Nothing is sent to our servers.

100% Valid

We follow official Brazilian algorithms to ensure validity