Network Calculators
Subnet, CIDR, and address conversion — computed in your browser.
4 tools in this category
In browser
Subnet Calculator
Open Calculate network, broadcast, masks, ranges and host counts for IPv4/IPv6.
In browser
IP Converter
Open Convert IP addresses between decimal, integer, binary, hex and IPv6 forms.
In browser
Base64
Open Encode or decode text to and from Base64 and Base64URL, with correct UTF-8 handling.
In browser
Timestamp
Open Convert between Unix timestamps and human-readable UTC/local dates.
Other categories
All toolsWhat you can do with network calculators
Subnet, CIDR, and address conversion — computed in your browser.
- Subnet Calculator — Calculate network, broadcast, masks, ranges and host counts for IPv4/IPv6.
- IP Converter — Convert IP addresses between decimal, integer, binary, hex and IPv6 forms.
- Base64 — Encode or decode text to and from Base64 and Base64URL, with correct UTF-8 handling.
- Timestamp — Convert between Unix timestamps and human-readable UTC/local dates.
Browser tools compute locally and send nothing to a server. Server tools issue a single outbound query at the edge; the values you type are not logged or stored. See our methodology and data sources.