UUID Inspector (GUID Analyzer)

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About this tool

This UUID Inspector analyzes UUID structure, validates format, and extracts version-specific metadata where available. It supports UUID v1, v4, and v7 with deeper inspection for time-based identifiers.

Time-based UUIDs (v1 and v7) expose embedded timestamps, allowing inspection of creation time and chronological behavior. Random UUIDs (v4) are analyzed structurally without inferred metadata.

The tool also performs heuristic checks to detect anomalies such as invalid timestamps, low entropy patterns, or inconsistent formatting. These are presented as warnings rather than hard validations.

This tool is intended for debugging, forensic inspection, and understanding UUID generation patterns in real systems.

Other sources

You can read more about UUIDs in the article the anatomy of a UUID

Open Source & Libraries

The core engine responsible for generating and inspecting unique identifiers behind this tool is fully open-source. You can find, use, and integrate the free IdCraft.js library on GitHub directly into your own JavaScript projects.

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