StarThrower.ByteUtilities 2.0.0

.NET 10.0

dotnet add package StarThrower.ByteUtilities --version 2.0.0

NuGet\Install-Package StarThrower.ByteUtilities -Version 2.0.0

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="StarThrower.ByteUtilities" Version="2.0.0" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="StarThrower.ByteUtilities" Version="2.0.0" />
                    

                            Directory.Packages.props

<PackageReference Include="StarThrower.ByteUtilities" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add StarThrower.ByteUtilities --version 2.0.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: StarThrower.ByteUtilities, 2.0.0"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package StarThrower.ByteUtilities@2.0.0

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=StarThrower.ByteUtilities&version=2.0.0
                    

                            Install as a Cake Addin

#tool nuget:?package=StarThrower.ByteUtilities&version=2.0.0
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

StarThrower.ByteUtilities

Byte and bit manipulation utilities including endianness conversion, bitwise operations, and non-destructive byte array reversal.

StarThrower.ByteUtilities provides ByteUtil, a static class of helper methods for working with raw byte arrays — extracting subsets, reversing byte/bit order, XOR-ing arrays, and converting between byte arrays and numeric types (Int16, Int32, float, double) with explicit control over byte and bit endianness. This is useful when parsing binary file formats or network protocols with a fixed, documented byte layout.

Installation

dotnet add package StarThrower.ByteUtilities

`ByteUtil`

Byte Array Manipulation

Method	Description
`ByteSubstring(byte[]? source, long startIndex, long length)`	Returns a new array containing `length` bytes from `source` starting at `startIndex`.
`ByteSubstring(byte[]? source, long startIndex, long length, bool trimWithNulls)`	As above, but if `trimWithNulls` is `true`, stops copying at the first `0x00` byte and pads the remainder of the result with zeros.
`ReverseBytes(byte[]? source)`	Returns a new array with the bytes in reverse order. Non-destructive — `source` is unchanged.
`ReverseBits(byte value)`	Returns a byte with its bits in reverse order.
`ReverseBits(byte[]? source)`	Returns a new array with the bits of each byte reversed (byte order is unchanged).
`XorByteArray(byte[]? value1, byte[]? value2)`	XORs two byte arrays element-wise. If the arrays differ in length, the shorter array is treated as if padded with zeros; the result has the length of the longer array.
`BytesAreEqual(byte[]? value1, byte[]? value2)`	Obsolete — use `value1.AsSpan().SequenceEqual(value2)` instead.

Endianness-Aware Numeric Conversion

These methods convert between byte arrays and numeric types, given the ByteEndian (order of bytes) and BitEndian (order of bits within each byte) of the data:

Method	Description
`ByteArrayToInt16(byte[]? value, ByteEndian byteEndian, BitEndian bitEndian)`	Converts a byte array to `Int16`.
`ByteArrayToInt32(byte[]? value, ByteEndian byteEndian, BitEndian bitEndian)`	Converts a byte array to `Int32`.
`ByteArrayToSingle(byte[]? value, ByteEndian byteEndian, BitEndian bitEndian)`	Converts a byte array to `float`.
`ByteArrayToDouble(byte[]? value, ByteEndian byteEndian, BitEndian bitEndian)`	Converts a byte array to `double`.
`ByteToInt16(byte bytes, BitEndian bitEndian)`	Converts a single byte to `Int16`.
`Int16ToByteArray(Int16 target, ByteEndian byteEndian, BitEndian bitEndian)`	Converts an `Int16` to a byte array.
`Int32ToByteArray(Int32 target, ByteEndian byteEndian, BitEndian bitEndian)`	Converts an `Int32` to a byte array.
`DoubleToByteArray(double target, ByteEndian byteEndian, BitEndian bitEndian)`	Converts a `double` to a byte array.
`Int16ToByte(Int16 target, BitEndian bitEndian)`	Converts an `Int16` in the range 0–255 to a single byte.

`ByteEndian` / `BitEndian`

public enum ByteEndian { Little = 0, Big = 1 }
public enum BitEndian  { Little = 0, Big = 1 }

ByteEndian describes the order of bytes within a multi-byte value (e.g. the bytes of an Int32). BitEndian describes the order of bits within each individual byte.

`InvalidEndianException`

Thrown by the conversion methods above when an undefined ByteEndian or BitEndian value is supplied.

Usage

using StarThrower.ByteUtilities;

byte[] data = [0x01, 0x00, 0x00, 0x00];

// Little-endian byte order, normal bit order
int value = ByteUtil.ByteArrayToInt32(data, ByteEndian.Little, BitEndian.Little); // 1

// Extract a 4-byte field starting at offset 8
byte[] field = ByteUtil.ByteSubstring(record, startIndex: 8, length: 4);

// Reverse a byte array without mutating the original
byte[] reversed = ByteUtil.ReverseBytes(data);

Dependencies

None.

License

Product	Compatible and additional computed target framework versions.
.NET	net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- No dependencies.

NuGet packages (3)

Showing the top 3 NuGet packages that depend on StarThrower.ByteUtilities:

Package	Downloads
StarThrower.Gis.GeoUtilities Geographic and coordinate system utilities including shape parsing, spatial calculations, and geometry helpers.	125
StarThrower.XBase Read and write dBASE (.dbf) file format including field type support for character, numeric, date, logical, and memo types.	104
StarThrower.Gis.EsriLibrary Read and write ESRI shapefile format (.shp/.dbf) including support for points, polylines, polygons, and multipart shapes.	94

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
2.0.0	123	7/4/2026

See https://github.com/StephenElmer/starthrower-utilities/releases