TOOL
Range To Cidr (Aligned Only)
Range To Cidr — pure client-side tool. Privacy-first, no server round-trip. Simplified tool: succeeds only when the range exactly matches one aligned CIDR block (e.g. 10.0.0.0-10.0.0.255 → /24); non-aligned ranges are rejected — this is not a general range-to-CIDR splitter.
Try an example:
Local only
Recent history
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How to use
- Type or paste your input into the input box.
- Adjust any parameters if needed.
- Copy or download the result.
Frequently asked questions
- Is my data uploaded anywhere?
- No. All processing happens locally in your browser with no server round-trip.
- Does this tool work offline?
- Yes. Once the page loads, the tool runs entirely client-side and needs no network connection.
Glossary terms
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