IPv4 Lookup & CIDR Calculator
Inspect an IPv4 address or work out a subnet: given a CIDR block you get the network address, broadcast address, usable host range and the total address count.
- Limits No file upload · Up to 2,000 runs a day
- Where it runs Runs on our server; no file is uploaded.
- Cost Free, with the limits above. No account needed.
Where to find it
Every address below opens the same tool. The first address is the one to bookmark and share.
- ipv4.openvibe.toolsPrimary
People also call this
What it's for: Look up IPv4 addresses and calculate CIDR subnets: network range, broadcast address, usable hosts and mask. Instant.
- ipv4 lookup
- cidr calculator
- subnet calculator
- ip range calculator
- netmask calculator
Use it from code
POST https://openvibe.tools/api/v1/tools/ipv4/run- No account needed: anonymous calls run on the lowest quota tier; a token with
tools.tool.runraises it. - It answers with the result.
curl -X POST https://openvibe.tools/api/v1/tools/ipv4/run \
-H 'Content-Type: application/json' \
-d '{"input":{"target":"example.com"}}'Inputs: JSON Schema · OpenAPI · from JavaScript: tools.run("ipv4", …) in openvibe-sdk · How the API works
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One account works on every site. Open source and community-run.