Generate your own local, non-routable IP addresses for your network according to RFC4193.
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MAC address generatorEnter the quantity and prefix. MAC addresses will be generated in your chosen case (uppercase or lowercase)
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JSON diffCompare two JSON objects and get the differences between them.
IPv4 range expanderGiven a start and an end IPv4 address, this tool calculates a valid IPv4 subnet along with its CIDR notation.
HTTP status codesThe list of all HTTP status codes, their name, and their meaning.
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IPv6 ULA generatorGenerate your own local, non-routable IP addresses for your network according to RFC4193.
IPv4 address converterConvert an IP address into decimal, binary, hexadecimal, or even an IPv6 representation of it.
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IPv4 subnet calculatorParse your IPv4 CIDR blocks and get all the info you need about your subnet.
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Date-time converterConvert date and time into the various different formats
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Hmac generatorComputes a hash-based message authentication code (HMAC) using a secret key and your favorite hashing function.
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OTP code generatorGenerate and validate time-based OTP (one time password) for multi-factor authentication.
QR Code generatorGenerate and download a QR code for a URL (or just plain text), and customize the background and foreground colors.
WiFi QR Code generatorGenerate and download QR codes for quick connections to WiFi networks.
Random port generatorGenerate random port numbers outside of the range of "known" ports (0-1023).
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URL parserParse a URL into its separate constituent parts (protocol, origin, params, port, username-password, ...)
UUIDs generatorA Universally Unique Identifier (UUID) is a 128-bit number used to identify information in computer systems. The number of possible UUIDs is 16^32, which is 2^128 or about 3.4x10^38 (which is a lot!).
MAC address lookupFind the vendor and manufacturer of a device by its MAC address.
XML formatterPrettify your XML string into a friendly, human-readable format.
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