Frequently Asked Questions
Find answers to common questions about our free online generator tools, security practices, and usage guidelines. Get help with password generation, QR codes, UUIDs, data generation, and more.
General Questions
What is OnlineGenerator and what tools do you offer?
OnlineGenerator is a comprehensive platform offering free online tools for developers, designers, and content creators. We provide password generators, UUID generators, QR code generators, barcode generators, username generators, data generators, Excel generators, routine planners, Lorem Ipsum generators, and image placeholder tools. All tools are completely free and require no registration.
Are your online generator tools completely free to use?
Yes, all our tools are 100% free to use with no hidden costs, subscriptions, or registration requirements. You can generate unlimited passwords, QR codes, UUIDs, barcodes, and other content without any limitations.
Do I need to create an account to use your generators?
No account creation is required. All our tools work directly in your browser without any registration, login, or personal information collection. Simply visit any tool page and start generating content immediately.
Do you store or track the data I generate?
We prioritize your privacy and do not store, log, or track any data you generate using our tools. All generation happens locally in your browser, ensuring your passwords, codes, and other generated content remain completely private.
Security & Password Tools
How secure are the passwords generated by your password generator?
Our password generator uses cryptographically secure random number generation to create truly random passwords. You can customize length (up to 128 characters) and include uppercase, lowercase, numbers, and special characters for maximum security. The passwords are generated client-side for enhanced privacy.
What makes a strong password and how can your tool help?
A strong password should be at least 12 characters long, include a mix of uppercase and lowercase letters, numbers, and special characters, and be unique for each account. Our password generator automatically creates passwords meeting these criteria and can generate different passwords for all your accounts.
Are the PIN codes generated safe for real-world use?
Our PIN generator creates cryptographically secure numerical codes suitable for testing and development. However, for real-world applications like banking or device security, we recommend using official methods provided by your bank or device manufacturer.
What are UUIDs and when should I use your UUID generator?
UUIDs (Universally Unique Identifiers) are 128-bit identifiers used in software development for creating unique database records, API keys, and system identifiers. Our UUID generator creates RFC 4122 compliant Version 4 UUIDs that are virtually guaranteed to be unique across all systems.
QR Codes & Barcodes
What types of QR codes can I generate?
Our QR code generator supports multiple content types including URLs/websites, plain text, contact information (vCard), WiFi credentials, email addresses, phone numbers, and SMS messages. You can also customize the size and error correction level of your QR codes.
Which barcode formats does your barcode generator support?
Our barcode generator supports popular formats including UPC-A, UPC-E, EAN-13, EAN-8, Code 128, Code 39, and ITF (Interleaved 2 of 5). These formats are suitable for retail products, inventory management, and various commercial applications.
Can I use generated QR codes and barcodes commercially?
Yes, all QR codes and barcodes generated by our tools can be used for commercial purposes without any restrictions. They're suitable for product packaging, marketing materials, inventory systems, and business applications.
What's the difference between QR codes and barcodes?
QR codes can store much more information (up to 4,296 characters) and can be scanned from any direction, while traditional barcodes store limited data and must be scanned horizontally. QR codes are better for URLs and contact info, while barcodes are ideal for product identification and inventory.
Data & Content Generation
What types of test data can your data generator create?
Our data generator creates realistic test data including names, emails, addresses, phone numbers, dates, numbers, and various custom fields. You can export data in CSV, JSON, or Excel formats with customizable row counts and field types, perfect for database testing and application development.
How does your Excel generator work?
Our Excel generator allows you to create custom spreadsheets by defining field types (text, numbers, dates, emails, etc.) and generating structured data. You can specify the number of rows, include headers, and download files in Excel (.xlsx), CSV, or JSON formats.
Is the Lorem Ipsum text generator customizable?
Yes, our Lorem Ipsum generator allows you to specify the amount of text (words, sentences, or paragraphs), choose between classic Lorem Ipsum or alternative placeholder text, and copy the generated content directly to your clipboard for use in designs and mockups.
What image placeholder options do you offer?
Our image placeholder generator creates custom images with specified dimensions, background colors, text overlays, and file formats. You can generate placeholder images for web development, design mockups, and prototyping with custom text and styling options.
Technical Questions
Do your tools work on mobile devices?
Yes, all our tools are fully responsive and optimized for mobile devices, tablets, and desktop computers. The interface adapts to different screen sizes, ensuring a seamless experience across all devices.
Which browsers are supported?
Our tools work on all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. We use standard web technologies to ensure compatibility across different platforms and browser versions.
Can I integrate your tools into my website or application?
While our tools are designed for direct browser use, you can link to specific tools from your website. For API integration or embedding, please contact us to discuss custom solutions for your specific needs.
Do you have keyboard shortcuts or bulk generation features?
Yes, many of our tools support keyboard shortcuts (like Enter to generate) and bulk generation features. For example, you can generate multiple passwords, UUIDs, or usernames at once, and our data generator can create thousands of records in various formats.
Use Cases & Best Practices
How can developers benefit from your online generators?
Developers can use our tools for generating test data, creating unique database identifiers (UUIDs), generating secure passwords for development environments, creating placeholder content for applications, and generating QR codes for app features. All tools integrate seamlessly into development workflows.
What are the best practices for using password generators?
Use unique passwords for each account, generate passwords with at least 12 characters including mixed case, numbers, and symbols. Store passwords in a secure password manager, enable two-factor authentication where possible, and regularly update passwords for important accounts.
How can businesses use your generator tools?
Businesses can use our tools for creating secure employee passwords, generating QR codes for marketing campaigns, creating barcodes for inventory management, generating test data for system testing, and creating Excel reports for data analysis. All tools support commercial use without restrictions.
Are there any limitations on usage or generation volume?
There are no artificial limitations on usage volume. You can generate as many passwords, codes, or data records as needed. However, very large data generation requests (10,000+ records) may take longer to process depending on your device's performance.
Still Have Questions?
Can't find the answer you're looking for? Explore our comprehensive tool guide or check out our most popular generators to get started.
Security Tools
Generate secure passwords, PINs, and UUIDs
Code & Visual Tools
Create QR codes, barcodes, and images