Nano ID Generator

Online generator of short URL-safe Nano IDs with configurable length, count, and alphabet.

Обработка выполняется локально в браузере. Данные не отправляются на сервер.

For this tool, processing runs locally in your browser and data is not sent to the server.

Nano ID Generator is a free online tool for creating short URL-safe identifiers for links, slugs, invite codes, sessions, and API. Processing runs locally in your browser.

What it does

Output

Processing

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How to use

Specify Nano ID count and identifier length.
Choose alphabet: URL-safe, lowercase, numbers, hex, or custom.
Optionally exclude similar characters, add a prefix, and choose output format.
Click Generate and copy Nano IDs for links, invite codes, sessions, API, mock data, or client-side IDs.

More about this tool

Nano ID Generator creates short URL-safe identifiers for links, slugs, invite codes, sessions, API, mock data, client-side IDs, and dev tasks.

Configure ID count, length, alphabet, output format, prefix, and exclusion of visually similar characters. Generation uses a crypto-safe approach via Web Crypto API when available.

The tool shows alphabet size, approximate entropy, and warnings for IDs that are too short.

Processing runs locally in your browser.

Generates short Nano IDs
Supports URL-safe alphabet
Configurable length and count
Can use custom alphabet
Shows approximate entropy
Suitable for links, invite codes, API, and mock data
Runs in the browser
Data is not sent to the server
No registration required

Frequently Asked Questions

What is Nano ID?

Nano ID is a short random identifier often used for links, slugs, invite codes, sessions, client-side IDs, and API.

How is Nano ID different from UUID?

UUID has a fixed standard format and is usually longer. Nano ID is shorter and lets you configure length and alphabet for URLs and public IDs.

How is Nano ID different from ULID?

ULID contains a time component and sorts by time. Nano ID is usually fully random and not meant for chronological sorting.

What is URL-safe Nano ID?

URL-safe IDs use characters safe in links without extra encoding, such as Latin letters, digits, underscore, and hyphen.

Can I configure Nano ID length?

Yes. Longer length and larger alphabet reduce collision probability.

Can I use a custom alphabet?

Yes. Choose Custom and specify character set. The alphabet must contain at least 2 unique characters.

Does Nano ID guarantee absolute uniqueness?

Nano ID has low collision probability with sufficient length and alphabet, but application-level guarantees require uniqueness checks such as a database unique index.

Can Nano ID be used as a secret token?

For security tokens choose length, alphabet, and crypto-safe generation carefully. Critical tokens need specialized generators and proven security requirements.

Is my data sent to the server?

No. Processing runs locally in your browser and data is not sent to the server.

Do I need to register?

No. The tool works without registration.

More about this tool

Nano ID Generator creates short URL-safe identifiers for links, slugs, invite codes, sessions, API, mock data, client-side IDs, and dev tasks.

Configure ID count, length, alphabet, output format, prefix, and exclusion of visually similar characters. Generation uses a crypto-safe approach via Web Crypto API when available.

The tool shows alphabet size, approximate entropy, and warnings for IDs that are too short.

Processing runs locally in your browser.

Generates short Nano IDs
Supports URL-safe alphabet
Configurable length and count
Can use custom alphabet
Shows approximate entropy
Suitable for links, invite codes, API, and mock data
Runs in the browser
Data is not sent to the server
No registration required

Frequently Asked Questions

What is Nano ID?

Nano ID is a short random identifier often used for links, slugs, invite codes, sessions, client-side IDs, and API.

How is Nano ID different from UUID?

UUID has a fixed standard format and is usually longer. Nano ID is shorter and lets you configure length and alphabet for URLs and public IDs.

How is Nano ID different from ULID?

ULID contains a time component and sorts by time. Nano ID is usually fully random and not meant for chronological sorting.

What is URL-safe Nano ID?

URL-safe IDs use characters safe in links without extra encoding, such as Latin letters, digits, underscore, and hyphen.

Can I configure Nano ID length?

Yes. Longer length and larger alphabet reduce collision probability.

Can I use a custom alphabet?

Yes. Choose Custom and specify character set. The alphabet must contain at least 2 unique characters.

Does Nano ID guarantee absolute uniqueness?

Nano ID has low collision probability with sufficient length and alphabet, but application-level guarantees require uniqueness checks such as a database unique index.

Can Nano ID be used as a secret token?

For security tokens choose length, alphabet, and crypto-safe generation carefully. Critical tokens need specialized generators and proven security requirements.

Is my data sent to the server?

No. Processing runs locally in your browser and data is not sent to the server.

Do I need to register?

No. The tool works without registration.