Developer & Data
Format, convert, encode and inspect data locally in your browser.
IPv4 CIDR Aggregator
Merge overlapping or adjacent IPv4 addresses and CIDR blocks into the smallest exact set of route prefixes without adding outside addresses.
Open tool →IPv4 Address Number Converter
Convert a strict dotted IPv4 address to unsigned decimal, hexadecimal and 32-bit binary, or turn an unsigned integer back into dotted notation.
Open tool →IPv6 Address Normalizer
Validate IPv6 text and show both fully expanded notation and RFC 5952-style lowercase compression, including IPv4-mapped addresses.
Open tool →IPv6 Subnet Calculator
Calculate the first address, last address and exact address count for an IPv6 CIDR prefix using 128-bit browser arithmetic.
Open tool →IPv4 and IPv6 CIDR Membership Checker
Test up to 1,000 IPv4 or IPv6 addresses against one same-version CIDR block and label every address inside or outside locally.
Open tool →MAC Address Normalizer and Bit Inspector
Validate 48-bit MAC addresses, render colon, hyphen and Cisco dotted formats, and inspect unicast/multicast plus universal/local flag bits.
Open tool →Fixed-width Bitwise Calculator
Apply AND, OR, XOR, NOT and logical shifts to unsigned 8-, 16-, 32- or 64-bit integers with padded binary and hexadecimal output.
Open tool →Bit Mask Inspector
Inspect an unsigned fixed-width mask as padded binary and list every set and clear bit position from least significant bit zero.
Open tool →Signed and Unsigned Integer Converter
Reinterpret decimal integers between signed two's-complement and unsigned representations at an explicit 8-, 16-, 32- or 64-bit width.
Open tool →Packed BCD Converter
Encode decimal digit strings as packed binary-coded decimal bytes or validate and decode packed BCD hexadecimal without numeric rounding.
Open tool →IEEE 754 Floating-point Inspector
Inspect a finite decimal value as binary32 or binary64 sign, biased exponent, fraction field, hexadecimal bits and exact browser round-trip value.
Open tool →Hex Endianness Converter
Reverse byte order independently inside 16-, 32- or 64-bit hexadecimal words while preserving word order and showing normalized bytes.
Open tool →Binary-reflected Gray Code Converter
Convert a bounded unsigned integer to binary-reflected Gray code or decode Gray code back to binary at a fixed width.
Open tool →Canonical Roman Numeral Converter
Convert integers from 1 through 3999 to canonical Roman numerals or validate and decode canonical subtractive notation case-insensitively.
Open tool →Backup Vault Total Cost Calculator
Backup Vault calculator to estimate total cost from a fixed amount, quantity and per-unit cost. Runs locally with visible inputs and assumptions.
Open tool →Backup Vault Unit Cost Calculator
Backup Vault calculator to derive cost per unit after separating a known fixed amount from the total. Runs locally with visible inputs and assumptions.
Open tool →Backup Vault Growth Rate Calculator
Backup Vault calculator to measure absolute and percentage change between an earlier and a later value. Runs locally with visible inputs and assumptions.
Open tool →Backup Vault Buffered Target Calculator
Backup Vault calculator to add an explicit safety buffer to a baseline requirement. Runs locally with visible inputs and assumptions.
Open tool →Backup Vault Completion Time Calculator
Backup Vault calculator to estimate elapsed time from a workload and a sustained processing rate. Runs locally with visible inputs and assumptions.
Open tool →Backup Vault Required Rate Calculator
Backup Vault calculator to calculate the sustained rate needed to finish a workload inside a time window. Runs locally with visible inputs and assumptions.
Open tool →Backup Vault Utilization Calculator
Backup Vault calculator to compare used capacity with total available capacity as a transparent percentage. Runs locally with visible inputs and assumptions.
Open tool →Backup Vault Remaining Capacity Calculator
Backup Vault calculator to show unused capacity and the remaining percentage before a stated limit. Runs locally with visible inputs and assumptions.
Open tool →Backup Vault Weighted Average Calculator
Backup Vault calculator to combine two observations while preserving their different weights. Runs locally with visible inputs and assumptions.
Open tool →Backup Vault Compound Projection Calculator
Backup Vault calculator to project repeated percentage change over a chosen number of periods. Runs locally with visible inputs and assumptions.
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