UUID and Regex Fixture

Generate UUIDs and regex-constrained companion values for fixtures.

Intermediate~3 minjsongeneratetesting

Use case

Use this when test payloads require both unique IDs and formatted codes.

Workflow overview2 steps0 / 2 completed~3 min

Follow the steps from left to right for a quick overview, then use the inline stepper below to run each tool.

Generate UUIDs and regex-constrained companion values for fixtures.

Current focusStep 1 · UUID / ID Generator

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Step 1json-tools Waiting

JSON → JSON

Generate IDs

IDs in the selected output format.

Step 2json-tools Waiting

JSON → JSON

Generate regex data

Pattern-matching values formatted as JSON array or newline text.

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Work through each tool step here. Running a step automatically prepares the next step with the correct handoff value.

Workflow shortcut

Next unlocked step: Step 1 · UUID / ID Generator

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Step 1Ready to runjson-tools

Generate UUID or sequential IDs in JSON array, newline, or CSV formats.

Provide { "type": "uuid-v4|sequential", "count": 5, "format": "json-array|newline|csv", "prefix": "optional" }.

IDs in the selected output format.

Run this step to process the current input and prepare the next workflow stage.

Step 2Lockedjson-tools

Given a regex pattern, generate N example strings that match it. Useful for structured IDs, codes, and format-specific mock values.

Complete the previous step first

This step unlocks automatically after all earlier workflow steps are completed successfully.

Provide { "pattern": "regex", "count": 5, "seed"?: 7, "format": "json-array|newline" }.

Pattern-matching values formatted as JSON array or newline text.

Run this step to process the current input and prepare the next workflow stage.