Useful tools, without the nonsense.
Fast utilities for developers, text, SEO, images, files, networking and everyday conversions. Most tools run entirely in your browser.
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NETWORK & CONVERSION
8 toolsNetwork & Conversion
Network & Conversion · FREEIPv4 CIDR Calculator
→Calculate network, broadcast, mask and host range from an IPv4 CIDR.
Network & Conversion · FREEIPv4 Converter
→Convert IPv4 addresses between dotted decimal, integer, hexadecimal and binary.
Network & Conversion · FREESubnet Mask Converter
→Convert IPv4 CIDR prefixes and subnet masks.
Network & Conversion · FREEPort Reference
→Quickly look up common TCP/UDP service port numbers.
Network & Conversion · FREEUser-Agent Parser
→Inspect a user-agent string and identify browser, OS and device class.
Network & Conversion · FREEByte Size Converter
→Convert bytes, KB, MB, GB, KiB, MiB and GiB.
Network & Conversion · FREETemperature Converter
→Convert Celsius, Fahrenheit and Kelvin.
Network & Conversion · FREEDate Difference Calculator
→Calculate the precise difference between two dates.