Developer Tools
Complete set of free tools organized by category. Quickly find what you need for web development.
π₯ Most Popular
The most used tools by our users
Document Generators & Validators
Generate and validate documents from Brazil, USA, Germany, India, UK, and Canada. Fictitious but mathematically correct documents.
Code Formatter
Format JSON, XML, HTML, YAML, Python, JavaScript and more. Automatic indentation and validation.
Password Generator
Create secure and customizable passwords with different complexity levels. Essential for online security.
QR Code Generator
Create QR codes for URLs, text, email, phone, WiFi and more. High quality download.
Online API Tester
API and REST microservices tester
Regex/Regular Expression Tester
Test and validate regular expressions online. View matches, capture groups and test regex patterns with text in real time.
Document Generators & Validators
Generate and validate documents from Brazil, USA, Germany, UK, Canada and India
Credit Card Generator
Create fictitious credit card numbers for testing.
Brazilian Document Validator
CPF, CNPJ, RG, CEP and Voter ID validator. Fast and accurate verification of Brazilian documents.
Brazilian Document Generator
Generate valid CPF, CNPJ, RG, CEP, CNH, PIS, Passport, Voter ID, bank account and vehicle plates for testing. Fictitious but mathematically correct documents.
American Document Generator
Generate SSN, Driver's License, Passport Number, State ID Number, Vehicle Registration, ZIP Code. Fictitious but mathematically correct documents.
German Document Generator
Generate Steueridentifikationsnummer, Personalausweis, FΓΌhrerschein, Reisepass, Postleitzahl (PLZ) and other documents. Fictitious but mathematically correct documents.
British Document Generator
Generate National Insurance Number, Driving Licence, Passport Number, NHS Number, Postcode and other documents. Fictitious but mathematically correct documents.
Canadian Document Generator
Generate Social Insurance Number, Driver's Licence, Health Card, Passport Number, Postal Code and other documents. Fictitious but mathematically correct documents.
Indian Document Generator
Generate Aadhaar Number, PAN Card, Driving Licence, Voter ID Card, Passport Number, PIN Code and other documents. Fictitious but mathematically correct documents.
Converters
Convert between different formats, bases and data types
Validators
Validate data, formats and code structures
Generators
Generate data, codes and unique identifiers
Formatters
Format and organize code, text and data
Security
Tools for encryption, passwords and security
Development
Specific tools for development and debugging
Utilities
Various tools for the developer's daily routine