About this utility
How to use IPv4 Range Expander & Summarizer
Summarize an inclusive IPv4 range or expand a safely bounded range.
What to provide
Use start - end notation.
- Paste, type, or drag and drop a supported text file into the input area.
- Choose the options that match your intended result.
- Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.
What the result means
Produces a bounded, inspectable ipv4 range expander & summarizer result locally.
Privacy and safety
This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.
Limitations
- Expansion is bounded to 65,536 addresses and makes no ownership or reachability lookup.
Try the included example
Select “Load example” at any time to restore this tested sample.
192.0.2.1 - 192.0.2.12