Free Online Utilities
Free online utilities to format JSON, validate CPF/CNPJ, generate passwords, convert data and process PDFs. Most run in your browser; a few tools use temporary server processing.
Popular tools
JSON Formatter
CPF Validator
CPF Generator
Password Generator
Base64 Encode/Decode
QR Code Generator
Character Counter Online
Percentage Calculator
UUID Generator
URL Encode/Decode
Email Validator
Age Calculator
Categories
Generators
Validators
Calculators
Dates & Time
Base Converters
Development
Image
Video
Tests and devices
Frequently asked questions
Is my data sent to any server?
Most tools run entirely in your browser. A few PDF tools temporarily upload files to a server for processing and delete them afterwards. Each page states its processing mode.
Do I need to create an account?
Not at all. Every tool is free and requires no registration, sign-up, or any kind of account.
Can I use it on mobile?
Absolutely. The site is fully responsive and works perfectly on desktop, tablet, and mobile.
How do I suggest a new tool?
We love hearing ideas. Use the contact form on the Contact page to send tool or feature suggestions.