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Tool reference

UUID Generator: instructions, examples and limits

Generates random version-4 UUIDs with the browser’s Web Crypto API.

Open UUID Generator
Processing location: your browser

This tool is registered for local processing. Its tool input is handled in the current page; LittleKit’s product analytics do not include the input value.

What it does

Generates random version-4 UUIDs with the browser’s Web Crypto API.

Worked example

Each UUID has the form xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx.

The example demonstrates the operation. For file-based tools, results depend on the selected file and options.

How the result is produced

Generates random version-4 UUIDs with the browser’s Web Crypto API.

Important limits

UUIDs provide practical uniqueness, not a permission system or guaranteed collision impossibility.

Choosing the next step

Treat these tools as a local scratchpad. Validate the format before transforming it, keep secrets out of shared screenshots and remember that a decoded token is not an authenticated token. Use the smallest input that reproduces the problem.

JSON ValidatorUses the browser’s strict JSON parser.JSON FormatterParses strict JSON and serializes with two-space indentation.Base64 DecodeDecodes standard Base64 bytes as strict UTF-8 text.

See a mismatch between these instructions and the tool? Report a correction with a non-sensitive example.