格 千格 KiloCell

Online NanoID Generator

Quick Generate URL secure short IDs, customise length and character set

⚙️ Parameter Configuration
📄 GenerateResult
Click Generate button to start

NanoID: Why is it the first ID of the modern distribution system?

In the past, UUID (Universal Unite Identifier) was the criterion for generating the only identifier. But with Web Technology development, the shortcomings of UUID are gradually becoming apparent: they are too long (36 characters), they contain hyphens and they are not sufficiently friendly with URLs. NanoID The emergence of this situation has changed the situation completely. As a small, safe and friendly URL only ID Generator, it's becoming the new developer's pet.

1. Core difference between Nanod and UUD

The following are the following significant advantages compared to the traditional UUID, Nanod:

  • Smaller size: The default length is only 21 characters, but is fully comparable to 36 bit UUID in safety.
  • URL Security: The default character set contains only numbers, letters, underlineds and hyphens, which can be directly part of the URL without the need for an encoder.
  • • The performance of the following: Use a random generation algorithm of encryption intensity, faster than conventional UUID.
  • Highly customized: Developer can customise the length and character set of IDs based on business needs.

2. Addressing specific issues: How to avoid ID collisions?

In the distribution system, the most worrying thing is that two different entities are creating the same. ID (i.e. collision). Many developers would ask, "If I cut the length to 10, is it safe? ”

Ours. Online NanoID Generator A collision probability calculator is built in. Safety depends on two factors: Size of Character Set and Length of ID 。 By adding complexity to the character set, even a shorter ID provides a very high level of security. For example, a 21-bit long one. Nanod, with 1,000 IDs per second, takes about 140 million years to have a 1% chance of a collision.

Best practices: How to select the appropriate ID length?

Depending on the application scene, you can adjust the ID policy:

  • Short link/invite number: 6-10 bits of recommended length, using pure numbers or lowercase letters, to facilitate user memory and input.
  • Database primary key: It is recommended to maintain the default 21 bits to ensure global uniqueness and avoid data conflicts.
  • Frontend temporary state: Suggested length 12 bits, balancing performance with uniqueness.

4. NanoID application scenario for front-end development

In React or Vue applications, we often need to generate only 'key 'for list entries value, or dynamic `id ' for table cells. Traditional `Math.random() ' is not safe and easily repeated and introduced The Nanod library will also increase the volume of the package. With our online generator, you can pre-create a batch of IDs is used for testing or for fast-tracking the prototype at an early stage of the project.

5. Privacy and security guarantees

This tool is based entirely on the 'crypto.getRandomValues 'API running from the browser end. This means all IDs The generation logic is done locally. No data will be passed on to our server. 。 This not only ensures a very high rate of generation, but also the privacy of key identifiers on your system.