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🧬 NanoID Generator

Generate secure NanoIDs with customizable length and alphabet. Great for developers needing short unique IDs.

🔑 NanoID Generator

Generate random IDs with custom length and alphabet. All locally in your browser.

Length

Alphabet (optional)

Count

NanoID best practices

What makes NanoID special?

NanoID creates tiny, URL-safe identifiers with excellent entropy. A length of 21 characters using the default alphabet gives roughly 128 bits of randomness—more than enough for public IDs or invitation links.

Common use cases

Generate collision-resistant IDs for database records.
Create shareable tokens for invites and referral programs.
Produce short slugs for URLs without exposing incremental integers.

Tips for secure IDs

Longer IDs dramatically reduce collision risk—consider 24+ characters for high-traffic APIs.
Use a custom alphabet to limit characters when copying into systems that disallow symbols.
Regenerate any IDs that contain leading or trailing spaces after manual edits.

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