Utilidades e geradores grátis online
Encontre ferramentas grátis online simples para tarefas do dia a dia, como gerar QR Codes, criar números aleatórios, montar nomes de teste, produzir UUIDs e fazer cálculos rápidos.
Todas Utilidades e geradores
Gerador de QR Code
Crie QR codes para URLs, texto ou informações de contato
Gerador de números aleatórios
Gere números aleatórios dentro de um intervalo personalizado
Gerador de nomes aleatórios
Gere nomes aleatórios para projetos, personagens ou ideias
Gerador de UUID
Gere UUIDs únicos (v4) para suas aplicações
Calculadora básica
Faça cálculos matemáticos básicos
Medidor de força de senha
Avalie o nível de segurança da sua senha
Gerador de HTACCESS
Gere configurações de servidor em `.htaccess`
Analisador de User-Agent
Extraia informações de navegador e sistema operacional
Gerador aleatório de cartão de crédito
Gere números de cartão de crédito de teste para validar interfaces
Verificador de senha forte
Analise a entropia da senha e o tempo estimado de quebra
Gerador de dados fictícios
Gere dados de teste em lote com nomes e e-mails
Gerador de seed phrase BIP39
Gere frases mnemônicas BIP39 para testes de cripto
Ferramenta de cifra de Vigenère
Criptografe e descriptografe texto com a cifra de Vigenère
Gerador de hash MD5
Gere checksums MD5 a partir de texto para verificação de dados
Overview
Utility and generator tools act as the digital Swiss Army knife for everyday tasks. From QR codes and UUIDs to password checks and random data, this catalog provides fast, client-side helpers you can rely on during planning, development, or daily work.
Small tasks still need reliable tools
Teams repeatedly need quick outputs like IDs, random numbers, or configuration snippets. Without standardized utilities, these tasks become manual or inconsistent.
Security-related helpers like password checks or hashing need to be fast and trustworthy. Client-side processing reduces exposure of sensitive inputs.
Utility tasks are often urgent and time-bound, so the tools must be frictionless and easy to access.
Catalog Breakdown
Random and unique generators
Create IDs and random values for testing and production.
- Generate UUIDs
- Create random numbers or names
- Build dummy data quickly
Security and validation helpers
Evaluate or generate secure credentials and hashes.
- Check password strength
- Generate strong passwords
- Create MD5 hashes
QR and sharing utilities
Generate quick shareable assets for links and data.
- Create QR codes for URLs
- Share contact or WiFi details
- Add scannable links to print
Configuration helpers
Build simple config snippets and rules without manual typing.
- Generate .htaccess rules
- Parse user-agent strings
- Create seed phrases for testing
How to Use These Tools
Identify the utility need
Select the generator or helper that matches your task.
Enter any parameters
Set lengths, ranges, or options for the output.
Generate the result
Use the tool to create IDs, hashes, or codes instantly.
Validate the output
Confirm formats or security requirements before use.
Copy and reuse
Apply the output in your workflow or documentation.
Repeat with consistency
Reuse the same settings for predictable results.
Use Cases
Software testing
Generate IDs, dummy data, and random values for QA.
Marketing collateral
Create QR codes for campaigns and print materials.
Security reviews
Check password strength and hash inputs locally.
Infrastructure setup
Create .htaccess rules or parse user-agent strings.
Product planning
Use random generators for naming and ideation.
Education demos
Show cryptography and randomness concepts quickly.
Professional Applications
Software engineering
Generate UUIDs, hashes, and test data.
IT administration
Create configuration snippets and inspect user agents.
Marketing
Build QR codes and trackable assets.
Security
Evaluate password quality locally.
Education
Demonstrate random generation and identifiers.
Best Practices
- Use cryptographically secure generators for passwords and IDs.
- Avoid MD5 for security-sensitive use cases.
- Document generated values in secure storage if needed.
- Validate outputs before using them in production systems.
- Keep QR code content short to improve scan reliability.
- Use consistent naming conventions for generated data sets.
- Regenerate sensitive data regularly to reduce risk.
FAQs
Are random values secure?
Many generators use cryptographic APIs for secure randomness.
Do you store generated outputs?
No. Outputs are generated locally and not saved.
Can I generate multiple UUIDs?
Yes. Generate as many as you need.
What is a BIP39 phrase?
It is a mnemonic seed phrase standard used for wallets and testing.
Are password checks private?
Yes. Analysis happens in your browser.
Is MD5 safe for security?
MD5 is not recommended for secure hashing but is useful for checksums.
Can I use QR codes commercially?
Yes. Outputs are free to use.
Do you validate user-agent strings?
The parser helps interpret, but validation depends on the source string.