Is UUID Generator free to use?

Yes. UUID Generator on WoDeTool is completely free with no sign-up required. Open the page and start using it immediately.

Which UUID version is generated?

Defaults to common random UUIDs (v4-style). Follow your system’s version rules; generate v1/v7 in-app when you need time-ordered IDs.

Can I use a UUID as a password or secret?

No. UUIDs are not designed for secrecy and often appear in URLs/logs. Use cryptographically strong secrets with server-side checks.

online UUID generator

Generate UUID v4

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Quick start: UUID Generator in 3 steps

Choose how many IDs to create
Generate and copy one or all values
Paste into fixtures, request headers, or filenames

UUID Generator: curated examples

•Example: mint an `X-Request-Id` for joint debugging.
•Example: generate 20 UUIDs for mock user primary keys.

About UUID Generator

Generate RFC 4122 UUIDs (typically v4) one at a time or in batches, then copy them for keys, request IDs, or filenames.

Generation runs in your browser. Match the version and casing your system expects — not every service accepts every UUID shape.

How UUID Generator works

Every language can call uuid or crypto.randomUUID(), but opening an IDE for three sample values is heavy. This page is for quick grabs; bulk inserts, seeded data, and time-ordered v1/v7 IDs belong in application code.

A UUID is not a secret — if it appears in a URL or log, assume it is visible. For sensitive tokens, use cryptographically strong secrets and server-side validation.

Why use UUID Generator on WoDeTool

WoDeTool keeps UUID Generator, related utilities, clipboard detection, and pipelines together, so you can work through JSON, JWT, and Diff in one workspace.

Use Smart Clipboard on the home page to auto-detect pasted JSON, Base64, or JWT and jump to UUID Generator. Save a tool pipeline to chain UUID Generator with related utilities. Read our guides for real-world workflows.

Create a pipeline →Browse guides →

Common use cases

•Sample primary keys: Create a few 550e8400-e29b-41d4-a716-446655440000-style values for migration comments before coding.
•Request tracing: Paste one UUID into X-Request-Id so front end and API logs share the same call ID.
•Upload names: Rename report.pdf to {uuid}.pdf to avoid overwriting objects in storage.

Frequently asked questions

Is UUID Generator free to use?: Yes. UUID Generator on WoDeTool is completely free with no sign-up required. Open the page and start using it immediately.
Which UUID version is generated?: Defaults to common random UUIDs (v4-style). Follow your system’s version rules; generate v1/v7 in-app when you need time-ordered IDs.
Can I use a UUID as a password or secret?: No. UUIDs are not designed for secrecy and often appear in URLs/logs. Use cryptographically strong secrets with server-side checks.

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