FREE · DEVELOPER TOOLS
Snowflake ID Layout Calculator.
Construct a decimal ID from timestamp, epoch, worker ID and sequence.
How to use Snowflake ID Layout Calculator
Enter the required text or settings and generate locally. Review the displayed algorithm and limits before copying or downloading.
How it works
Construct a decimal ID from timestamp, epoch, worker ID and sequence. 41 time bits, 10 node bits and 12 sequence bits. Repeated inputs repeat IDs; no distributed coordination. Web Crypto uses the browser’s secure random generator; pasted data is not sent to a server.
Example
Generate the supplied public example settings to inspect the result.
Questions about Snowflake ID Layout Calculator
Is Snowflake ID Layout Calculator free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
41 time bits, 10 node bits and 12 sequence bits. Repeated inputs repeat IDs; no distributed coordination. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.