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Modern ID Generator

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Decode timestamp

Paste a UUIDv7 or ULID to extract its embedded creation time.

What This Tool Does

Modern ID Generator is built for deterministic developer and agent workflows.

Generate UUIDv7, ULID, and NanoID identifiers in bulk and decode the embedded timestamp from sortable IDs.

Use How to Use for execution steps and FAQ for constraints, policies, and edge cases.

Last updated:

This tool is provided as-is for convenience. Output should be verified before use in any production or critical context.

Agent Invocation

Best Path For Builders

Browser workflow

Runs instantly in the browser with private local processing and copy/export-ready output.

Browser Workflow

This tool is optimized for instant in-browser execution with local data handling. Run it here and copy/export the output directly.

/modern-id-generator/

For automation planning, fetch the canonical contract at /api/tool/modern-id-generator.json.

How to Use Modern ID Generator

  1. 1

    Choose an ID type

    Select UUIDv7, ULID, or NanoID. UUIDv7 and ULID are time-sortable; NanoID is a compact, URL-safe random string with a configurable alphabet and length.

  2. 2

    Set count and options

    Enter how many IDs to generate, from 1 to 100. For NanoID, customize the alphabet and length to match your collision and readability requirements.

  3. 3

    Generate and copy

    Press Generate to create the batch using cryptographically secure randomness, then copy a single ID or use Copy all to grab the entire list.

  4. 4

    Decode a timestamp

    Paste a UUIDv7 or ULID into the decode panel to read its embedded creation time as an ISO date plus a human-readable relative time.

Frequently Asked Questions

What is Modern ID Generator?
It is a browser tool that creates UUIDv7, ULID, and NanoID identifiers in bulk, and decodes the creation timestamp embedded in sortable UUIDv7 and ULID values.
How do I use Modern ID Generator?
Pick an ID type, set how many you need, adjust NanoID alphabet and length if relevant, then press Generate. Copy individual IDs or copy the whole batch at once.
Is Modern ID Generator free?
Yes. It runs entirely in your browser at no cost, with no account, so you can generate IDs for tests, fixtures, or production seeds anytime.
Does Modern ID Generator store or send my data?
No. IDs are produced locally with the Web Crypto API and nothing is uploaded. Decoding a pasted ID also happens entirely in your browser.
Why choose UUIDv7 or ULID over UUIDv4?
UUIDv7 and ULID embed a millisecond timestamp in their leading bits, so they sort chronologically and index better in databases than random UUIDv4 values.