IPv4 · IPv6 · VLSM · Validation en Masse · Supernet
Calculateur de Sous-réseaux Avancé
Calculez des sous-réseaux, validez des adresses IP, divisez des réseaux et agrégez des CIDRs — tout dans votre navigateur, sans serveur.
About This Subnet Calculator
This advanced subnet calculator supports both IPv4 and IPv6 networking. Use it to calculate network addresses, broadcast addresses, and valid host ranges from a CIDR notation input. The VLSM splitter helps you divide a larger network into equal-sized subnets, while the supernet tool finds the smallest enclosing network for a list of CIDRs. All calculations run entirely in your browser — no data is sent to any server.
How to Use
- IPv4/IPv6 Calculator: Enter a CIDR (e.g.
192.168.1.0/24) to see full network details. - IP Validator: Check if a single IP address belongs to a given subnet.
- Bulk Validator: Paste a list of IPs to validate them all against one subnet at once.
- VLSM Splitter: Split any CIDR into N equal subnets and see each subnet's full details.
- Supernet: Enter multiple CIDRs to find the smallest single network that contains all of them.
- IP Info: Analyze any IP address — class, type, binary, hex, and decimal representations.