UUID Validator

Validate one UUID

1. Select Single UUID.
2. Enter a UUID in the single-line input, such as 550e8400-e29b-41d4-a716-446655440000.
3. Review the result shown below the input as you type.
4. Select Copy to copy the single-UUID result.

Validate multiple UUIDs

1. Select Multiple UUIDs.
2. Paste your values into the textarea. Use one UUID per line or separate UUIDs with commas, as shown by the placeholder Paste UUIDs - one per line or comma-separated.
3. Review the per-item validation results and the summary shown for the list.

Copy or export results

• In the single-UUID panel, select Copy to copy the displayed result.
• In the multiple-UUID panel, select Copy CSV to copy the bulk results as CSV text.
• Select Download CSV to save the bulk results as a CSV file.

Understand the validation results

The validator checks UUID structure and inspects version and variant information. For a version 1 UUID, it can also show timestamp information. These results describe the value you entered; they do not establish how the UUID was generated or whether it is unique.

Limitations and failure cases

• The page does not specify a maximum number of UUIDs or a maximum bulk input size.
• The documented bulk separators are one UUID per line and comma-separated input. Other formatting behavior is not documented here.
• A structurally valid UUID is not proof of uniqueness, secure generation, standards compliance, database performance, or generator-library correctness.
• Do not use the result as evidence that a UUID is private or safe to disclose. The page does not provide an absolute privacy or no-transmission guarantee.
• Version-specific behavior beyond the confirmed inspection output, including timestamp handling for v6 or v7, is not documented by this page.

Frequently Asked Questions