IPv6 ULA generator
Generate an IPv6 ULA prefix
Create a random Unique Local Address prefix for private IPv6 networks and lab documentation.
The result includes the /48 prefix, a configurable /64 subnet and sample host addresses.
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The tool runs directly in the browser and is ready for quick checks without installing software.
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Input can be cleared and recalculated immediately, which is useful for repeated small tasks.
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Use fullscreen mode when you need more space for long text, structured data or large result blocks.
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Copy buttons are available on generated output so results can be reused in code, documents or support chats.
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Most operations are deterministic: the same input and options produce the same output.
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For sensitive content, prefer local browser tools and review the result before sharing it further.
