CIDR Calculator
Calculate IP address ranges, subnet masks, and network information from CIDR notation
NetworkFree • No Signup
Key Features
- Free to use
- No registration required
- Works offline
- Privacy-focused
- Fast processing
Use Cases
Development workflow
Quick data processing
Learning and experimentation
The CIDR Calculator is designed for developers, engineers, and technical professionals who need a fast, reliable, and privacy-focused solution. All processing happens locally in your browser—your data never leaves your device.
Frequently Asked Questions
Have more questions about CIDR Calculator?