Nano ID Generator
Create secure, URL-friendly unique identifiers online
Generator Settings
Character Set
Characters to remove from the character set
Generation Settings
Length of each generated ID (1-1000 characters)
How many IDs to generate (1-1000)
Generated IDs
No IDs generated yet
Configure settings and click "Generate Nano IDs" to create unique identifiers
When to Use Nano ID Generator
Database Primary Keys
Generate unique identifiers for database records that are shorter than UUIDs but maintain security and uniqueness
URL Slugs & Short Links
Create URL-friendly identifiers for short links, article slugs, and user-friendly URLs that are safe to use in web addresses
Session Tokens
Generate secure session tokens and API keys that are cryptographically secure and resistant to guessing attacks
File Names & IDs
Create unique file names, document IDs, and resource identifiers that avoid naming conflicts and maintain security
Mobile App Development
Generate user IDs, device tokens, and app-specific identifiers that work well in mobile applications and APIs
Testing & Development
Create test data, mock IDs, and development identifiers for testing applications and building prototypes
Frequently Asked Questions
What is a Nano ID?
A Nano ID is a secure, URL-friendly unique string identifier generator. It's smaller than UUID and uses a larger alphabet, making it more compact while maintaining security. Nano IDs are perfect for generating unique identifiers for databases, URLs, session tokens, and any application requiring unique string IDs.
How do I use this Nano ID generator?
Using our Nano ID generator is simple: 1) Choose your character set (default A-Za-z0-9_- or custom), 2) Set the ID length (1-1000 characters), 3) Specify how many IDs to generate, 4) Optionally exclude specific characters, 5) Click 'Generate IDs' to create your unique identifiers, 6) Copy or download the results as needed.
Is this Nano ID generator free to use?
Yes, our Nano ID generator is completely free to use with no registration required. You can generate unlimited Nano IDs, use custom character sets, and download results without any cost. There are no hidden fees, premium features, or usage limits.
What character sets can I use for Nano IDs?
You can use the default character set (A-Za-z0-9_-) which includes uppercase letters, lowercase letters, numbers, underscore, and hyphen. Alternatively, you can define a custom character set with any characters you need. You can also exclude specific characters from the default set to avoid confusion or meet specific requirements.
How secure are Nano IDs?
Nano IDs are cryptographically secure and use a secure random number generator. The probability of collision is extremely low, making them suitable for production applications. The default 21-character length provides 128 bits of entropy, which is considered secure for most use cases.
Can I generate multiple Nano IDs at once?
Yes! Our tool supports batch generation of Nano IDs. You can specify how many IDs you want to generate (up to 1000 at once) and they will all be created with the same settings. This is perfect for bulk operations, testing, or when you need multiple unique identifiers for your project.
What are common use cases for Nano IDs?
Nano IDs are commonly used for: database primary keys, URL slugs, session tokens, API keys, file names, user IDs, order numbers, tracking codes, and any application requiring unique string identifiers. They're particularly popular in web development, mobile apps, and distributed systems.
Can I download the generated Nano IDs?
Absolutely! You can copy individual IDs to your clipboard or download all generated IDs as a text file. The download feature creates a simple text file with each ID on a new line, making it easy to import into your applications or use in bulk operations.
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