Submodule reference

You can strip the following submodules from your project using the Web Stripping Tool package.

To learn what submodules you might want to strip from your project, refer to Identify unused submodules.

To learn the difference between modules and submodules, refer to Understand submodules.

Note

The availability of some submodules depends on your installed Unity version. If a submodule has a Unity version listed, it's only applicable if you use that version of Unity. Items marked with a dash (-) are available in all supported versions.

Submodule name Purpose Unity version
2D Rendering Provides support for 2D sprite rendering. Automatically includes all 2D rendering submodules. -
2D Rendering Common Common components for 2D rendering. -
2D Rendering Renderer Sprite Renderer Implementation -
2D Rendering Sorting Sprite Sorting -
2D Rendering Sprite Atlas Sprite Atlas -
2D Rendering Sprite Tiling Sprite Tiling -
Advanced Text Generator Support Advanced Text Generator is a text rendering module that employs HarfBuzz, ICU, and FreeType to deliver comprehensive Unicode support and text shaping capabilities. With Advanced Text Generator, you can use a wide array of languages and scripts, such as right-to-left (RTL) languages like Arabic and Hebrew. -
HarfBuzz HarfBuzz text shaping engine. -
ICU International Components for Unicode. -
AndroidJNIModule AndroidJNIModule allows you to call Java code from C# scripts. AndroidJNIModule's features aren't applicable in Unity Web builds. -
Animation The Unity Animation module. Automatically includes all Animation submodules. ≥6000.5.0a7
Animation Allocators Internal memory allocators used by the Animation module. ≥6000.5.0a7
Animation Animator Animator class of Unity Animation module. ≥6000.5.0a7
Animation Constraints Constraints in the Unity Animation module. ≥6000.5.0a7
Animation Core Core implementation of Unity Animation module. ≥6000.5.0a7
Animation Director Playable Director in the Unity Animation module. ≥6000.5.0a7
Animation Human Components for human avatar in the Unity Animation module. ≥6000.5.0a7
Animation Script Bindings C# Script Bindings of the Unity Animation module. ≥6000.5.0a7
Animation State Machine Animation State Machine in the Unity Animation module. ≥6000.5.0a7
ArticulationBody The ArticulationBody component used in Unity's 3D physics system. -
Clipper A polygon clipping library. Dependency of, for example, URP 2D shadows. ≥6000.5.0a7
double-conversion A library for operations on IEEE doubles. ≥6000.5.0a7
Expression Evaluator Provides support for evaluating simple math expressions. -
FreeType2 FreeType2 font library that is used by the legacy text renderer. Automatically includes all FreeType2 submodules. -
FreeType2 Base This submodule contains features of the FreeType2 font library. -
FreeType2 CFF Provides support for loading CFF (Compact Font Format) fonts. -
FreeType2 OpenType Validation Provides support for OpenType validation in FreeType2. -
FreeType2 Postscript Provides support for FreeType2's PostScript driver. -
FreeType2 Raster Provides support for FreeType2's monochrome rasterizer. -
FreeType2 SDF Provides support for signed distance field rasterizer in FreeType2. -
FreeType2 SFNT Provides support for SFNT (Scalable Font) font files in FreeType2. -
FreeType2 Smooth Provides support for anti-aliasing rasterizer in FreeType2. -
FreeType2 TrueType Provides support for TrueType font files in FreeType2. -
GPU Instancing Support for GPU Instancing: a draw call optimization for objects that share the same mesh and material. -
GPU Resident Drawer Enables using the GPU Resident Drawer feature. <6000.6
GPU Resident Drawer Core Core implementation of the GPU Resident Drawer feature. <6000.6
GPU Resident Drawer Rendering Debugger Rendering debugger for the GPU Resident Drawer. <6000.6
HierarchyCore The Unity Hierarchy Core module. Automatically includes all HierarchyCore submodules. ≥6000.5.0a7
HierarchyCore Core Implementation of Hierarchy Core module. ≥6000.5.0a7
HierarchyCore Script Bindings C# Scripting API for Hierarchy Core module. ≥6000.5.0a7
IMGUI Provides support for the IMGUI UI framework. -
IMGUI Script Bindings Provides support for using IMGUI in your game via scripting. -
libjpeg A library for reading JPEG files. ≥6000.5.0a6
libpng A library for reading PNG files. ≥6000.5.0a6
libtess2 A library to tessellate and triangulate polygons. ≥6000.5.0a6
Mesh Features Various features related to UnityEngine.Mesh. Automatically includes all Mesh-related submodules. -
Mesh Advanced Editing API Advanced C# API for manipulating meshes. -
Mesh Optimizer Provides support for optimizing meshes. -
Mesh Combiner Provides support for batch rendering of meshes and combining meshes. -
Mesh Compression Provides support for compressing and decompressing mesh data. -
Mesh Blend Shapes Provides support for using blend shapes in skinned meshes. -
Mesh Recalculate Bounds API C# API for updating bounds of a mesh. -
Mesh Recalculate Normals API C# API for recalculating normals of a mesh. -
Mesh Sprite Rendering Provides support for rendering sprite meshes. -
Mesh Script Bindings Provides support for accessing and manipulating meshes through UnityEngine.Mesh C# API. -
Mesh Async Upload Provides support for uploading mesh data to the GPU asynchronously. -
Mesh Skinning Provides rendering support for skinned meshes. -
Mono Provides access to Mono runtime internals and platform-specific implementations. -
Mono Globalization Provides globalization and locale-specific collation support for the Mono runtime. -
Mono Net Provides Mono-specific networking utilities and HTTP helpers. -
Mono Runtime Provides Mono runtime internal types including runtime handles, interop marshalling helpers, and dependency injection. -
Mono Security Provides security-related classes and cryptographic implementations from the Mono runtime, including X.509 certificate handling and system security providers. -
Mono Unity Provides Unity-specific extensions and integrations for the Mono runtime. -
Newtonsoft Json.NET Newtonsoft's Json.NET framework, version 13.0.2. -
Newtonsoft.Json The Newtonsoft.Json namespace provides classes that are used to implement the core services of the framework. -
Newtonsoft.Json.Bson The Newtonsoft.Json.Bson namespace provides classes that are used to implement BSON. -
Newtonsoft.Json.Converters The Newtonsoft.Json.Converters namespace provides classes that inherit from JsonConverter. -
Newtonsoft.Json.Linq The Newtonsoft.Json.Linq namespace provides classes that are used to implement LINQ to JSON. -
Newtonsoft.Json.Schema The Newtonsoft.Json.Schema namespace provides classes that are used to implement JSON schema. -
Newtonsoft.Json.​Serialization The Newtonsoft.Json.Serialization namespace provides classes that are used when serializing and deserializing JSON. -
ParticleSystem Built-in particle system. Automatically includes all ParticleSystem submodules. -
ParticleSystem Collision Module Controls the collision of particles with GameObjects. -
ParticleSystem Color by Speed Module Sets particle color depending on speed. -
ParticleSystem Color Module Sets particle color. -
ParticleSystem Core Built-in particle system core. -
ParticleSystem Curves Built-in particle system curves -
ParticleSystem Custom Data Module Sets custom particle data. -
ParticleSystem Emission Module Sets the rate and timing of particle system emissions. -
ParticleSystem Events Built-in particle system collision events -
ParticleSystem External Forces Module Controls wind zones and particle system force fields. -
ParticleSystem Force over Lifetime Module Controls forces acting on the particle. -
ParticleSystem Geometry Jobs Jobs for built-in particle system geometry generation. -
ParticleSystem Gradients Gradient math library for the built-in particle system -
ParticleSystem Inherit Velocity Module Controls the velocity of particles emitted by sub-emitter particles. -
ParticleSystem Initial Module Controls global properties that affect the whole system. -
ParticleSystem Lifetime by Emitter Speed Module Controls particle lifetime depending on the emitter speed. -
ParticleSystem Lights Module Adds real-time lights to particles. -
ParticleSystem Limit Velocity Module Limits velocity over time. -
ParticleSystem Modules Built-in particle system modules. Automatically includes all ParticleSystem modules. -
ParticleSystem Noise Module Adds turbulence to particle movement. -
ParticleSystem Base Module The base class for Particle System modules. -
ParticleSystem Renderer Built-in particle system renderer -
ParticleSystem Rotation By Speed Module Controls particle rotation depending on speed. -
ParticleSystem Rotation Module Controls particle rotation. -
ParticleSystem Script Bindings Support for interacting with built-in particle system using C# API. -
ParticleSystem Shape Module Controls the shape of the particle system emitter. -
ParticleSystem Size By Speed Module Controls particle size by speed. -
ParticleSystem Size over Lifetime Module Controls particle size over its lifetime. -
ParticleSystem Sub Emitters Module Allows particles to also emit new particles. -
ParticleSystem Texture Sheet Animation Module Adds texture animation to a particle. -
ParticleSystem Trails Module Adds particle trails. -
ParticleSystem Triggers Module Modifies particles based on interaction with colliders. -
ParticleSystem Utils Built-in particle system utility classes -
Physics2D Physics2D module that implements 2D physics in Unity. Automatically includes all Physics2D submodules. ≥6000.5.0a8
Box2D v2 Box 2D physics engine version 2.4, which is used by the Physics2D module. ≥6000.5.0a8
Box2D v3 Box 2D physics engine version 3.1.1, which is used by the low-level API of the Physics2D module. ≥6000.5.0a8
Physics2D Core Core implementation of the Physics2D engine module. ≥6000.5.0a8
Physics2D Script Bindings C# Scripting API for Physics2D module. ≥6000.5.0a8
PhysicsCore2D Core Low-level 2D physics engine module. ≥6000.5.0a8
PhysicsCore2D Script Bindings C# Scripting API for PhysicsCore2D module. ≥6000.5.0a8
PhysX NVIDIA PhysX physics engine. Automatically includes all PhysX submodules. ≥6000.5.0a7
PhysX Character Kinematic Character Kinematic module of NVIDIA PhysX physics engine. ≥6000.5.0a7
PhysX Cloth Cloth module of NVIDIA PhysX physics engine. ≥6000.5.0a7
PhysX Common Provides common data structures, utilities, and foundational classes used throughout the PhysX SDK. ≥6000.5.0a7
PhysX Cooking Cooking module of NVIDIA PhysX physics engine. ≥6000.5.0a7
PhysX Core Central library responsible for running physics calculations, including collision detection, rigid body dynamics, and constraints of PhysX SDK. ≥6000.5.0a7
PhysX Extensions Extensions module of NVIDIA PhysX physics engine. ≥6000.5.0a7
PhysX Foundation Foundation module of NVIDIA PhysX physics engine. ≥6000.5.0a7
PhysX PvdSDK PhysX Visual Debugger module of NVIDIA PhysX physics engine. ≥6000.5.0a7
PhysX Vehicle Vehicle module of NVIDIA PhysX physics engine. ≥6000.5.0a7
System.​ComponentModel Provides functionality for the .NET Component Model. -
System.ComponentModel Core Provides the core functionality for the .NET Component Model. This submodule contains the specific classes required by the Newtonsoft.Json library. -
System.ComponentModel Extra Provides all remaining functionality from the .NET Component Model not included in System.ComponentModel Core. This submodule can be safely stripped if your project's dependencies only require the Core components. -
System.Data Provides access to classes that represent the ADO.NET API. -
System.DateTimeOffset Provides access to DateTimeOffset, the struct that represents a point in time relative to Coordinate Universal Time (UTC). -
System.DateTimeParse Provides access to classes that convert strings to DateTime objects. -
System.Dynamic Provides access to classes and interfaces of the Dynamic Language Runtime. -
System.Linq Provides support for Language-Integrated Query (LINQ). -
System.Linq Core Provides core functionality for Language-Integrated Query (LINQ). -
System.Linq Expressions Provides support for representing language-level code expressions as expression trees. -
System.Net Provides access to classes for network protocols. -
System.Numerics Provides types in System.Numerics namespace, such as BigInteger and Vector<T>, that complement the numeric primitives defined by .NET. -
System.Numerics Core Provides types such as BigInteger and Complex. -
System.Numerics.Vector<T> Provides Vector<T> that represents a single vector of a specified numeric type that is suitable for low-level optimization of parallel algorithms. -
System.Security Provides access to the common language security system. -
System.TimeZoneInfo Provides access to time zone information and conversions between time zones. -
System.Xml Provides standards-based support for processing XML using the .NET APIs. -
TextCore Unity's default text rendering module. Automatically includes all TextCore submodules. ≥6000.5.0a3
TextCoreFontEngine Used to access data from TrueType (.ttf, .ttc) and OpenType (.otf) font files. Also used to raster the visual representation of characters known as glyphs in a given font atlas texture. -
TextCoreTextEngine Text engine that provides comprehensive Unicode support and text shaping capabilities. ≥6000.5.0a3
Text Editing Utilities Provides support for editing text in UI Toolkit and IMGUI text editors. -
Text Rendering Provides support for rendering high-quality text in a Unity project. -
Text Selecting Utilities Provides support for selecting text in UI Toolkit and IMGUI. -
TetGen Tetrahedral Mesh Generator and 3D Delaunay Triangulator library. This submodule is a dependency of light probes. -
Texture Decompression Provides support for decompressing textures on the fly. You do not need this submodule if textures are already compressed in the correct format. Automatically includes texture decompression for DXT, BC, ETC and ASTC format. -
Texture Decompression ASTC Provides support for ASTC decompression. You do not need this submodule if textures are already compressed in the correct format. -
Texture Decompression BC Provides support for BC decompression. You do not need this submodule if textures are already compressed in the correct format. -
Texture Decompression Crunch Provides support for crunch compression. You do not need this submodule if crunch texture compression is not used. -
Texture Decompression DXT Provides support for DXT decompression. You do not need this submodule if textures are already compressed in the correct format. -
Texture Decompression ETC Provides support for ETC/ETC2 decompression. You do not need this submodule if textures are already compressed in the correct format. -
Tilemap The Unity Tilemap module. Automatically includes all Tilemap submodules. ≥6000.5.0a7
Tilemap Core Implementation of Tilemap module. ≥6000.5.0a7
Tilemap Script Bindings C# Scripting API for Tilemap module. ≥6000.5.0a7
UI Toolkit Framework UI toolkit is a collection of features, resources, and tools for developing user interface (UI). -
UI Toolkit Provides support for the UI toolkit. -
UI Toolkit TextEditingManipulator Provides support for editing text in UI Toolkit. -
UI Toolkit TextSelectingManipulator Provides support for selecting text in UI Toolkit. -
UI Toolkit Visual Elements Various UI Elements of UI toolkit. -
Unity 2D Animation The 2D Animation package includes features and tools that allow you to quickly rig and animate 2D characters in Unity in a variety of ways. -
Unity 2D Feature Set Provides support for Unity's 2D graphics features including sprite atlases, sprite shapes, and tilemaps. For more information, refer to 2D feature set. -
Unity 2D Core 2D graphics features that are part of the core engine module. -
Unity 2D Packages Additional 2D features installed via packages referenced by the 2D feature set. -
Unity Collections Provides support for Unity's native collection types from the Unity Collections package. -
Unity Collections - FixedList32Bytes Provides support for FixedList32Bytes<T>, a fixed-size list with 32 bytes of embedded storage. -
Unity Collections - FixedList64Bytes Provides support for FixedList64Bytes<T>, a fixed-size list with 64 bytes of embedded storage. -
Unity Collections - FixedList128Bytes Provides support for FixedList128Bytes<T>, a fixed-size list with 128 bytes of embedded storage. -
Unity Collections - FixedList512Bytes Provides support for FixedList512Bytes<T>, a fixed-size list with 512 bytes of embedded storage. -
Unity Collections - FixedList4096Bytes Provides support for FixedList4096Bytes<T>, a fixed-size list with 4096 bytes of embedded storage. -
Unity Collections - FixedString32Bytes Provides support for FixedString32Bytes, a fixed-size UTF-8 string with 32 bytes of storage. -
Unity Collections - FixedString64Bytes Provides support for FixedString64Bytes, a fixed-size UTF-8 string with 64 bytes of storage. -
Unity Collections - FixedString128Bytes Provides support for FixedString128Bytes, a fixed-size UTF-8 string with 128 bytes of storage. -
Unity Collections - FixedString512Bytes Provides support for FixedString512Bytes, a fixed-size UTF-8 string with 512 bytes of storage. -
Unity Collections - FixedString4096Bytes Provides support for FixedString4096Bytes, a fixed-size UTF-8 string with 4096 bytes of storage. -
Unity Collections - NativeArray Provides support for NativeArray<T>, a fixed-size native memory array. -
Unity Collections - NativeBitArray Provides support for NativeBitArray, an arbitrarily-sized array of bits stored in native memory. -
Unity Collections - NativeHashMap Provides support for NativeHashMap<TKey, TValue>, a native key-value dictionary. -
Unity Collections - NativeHashSet Provides support for NativeHashSet<T>, a native set of unique values. -
Unity Collections - NativeKeyValueArrays Provides support for NativeKeyValueArrays<TKey, TValue>, parallel arrays for keys and values. -
Unity Collections - NativeList Provides support for NativeList<T>, a resizable native memory list. -
Unity Collections - NativeParallelHashMap Provides support for NativeParallelHashMap<TKey, TValue>, a parallel-safe native key-value dictionary. -
Unity Collections - NativeParallelHashSet Provides support for NativeParallelHashSet<T>, a parallel-safe native set of unique values. -
Unity Collections - NativeParallelMultiHashMap Provides support for NativeParallelMultiHashMap<TKey, TValue>, a parallel-safe native multi-hash map allowing multiple values per key. -
Unity Collections - NativeQueue Provides support for NativeQueue<T>, a native FIFO queue. -
Unity Collections - NativeReference Provides support for NativeReference<T>, a native reference to a single value. -
Unity Collections - NativeRingQueue Provides support for NativeRingQueue<T>, a fixed-size circular buffer for single-threaded use. -
Unity Collections - NativeStream Provides support for NativeStream, a native parallel data stream for writing and reading data in parallel jobs. -
Unity Collections - NativeText Provides support for NativeText, a resizable UTF-8 string stored in native memory. -
Unity Collections - UnsafeAppendBuffer Provides support for UnsafeAppendBuffer, an unsafe unmanaged, untyped, heterogeneous buffer. -
Unity Collections - UnsafeAtomicCounter32 Provides support for UnsafeAtomicCounter32, a 32-bit atomic counter for thread-safe incrementing. -
Unity Collections - UnsafeAtomicCounter64 Provides support for UnsafeAtomicCounter64, a 64-bit atomic counter for thread-safe incrementing. -
Unity Collections - UnsafeBitArray Provides support for UnsafeBitArray, an unsafe arbitrarily-sized array of bits. -
Unity Collections - UnsafeHashMap Provides support for UnsafeHashMap<TKey, TValue>, an unsafe key-value dictionary with no safety checks for maximum performance. -
Unity Collections - UnsafeHashSet Provides support for UnsafeHashSet<T>, an unsafe set of unique values with no safety checks for maximum performance. -
Unity Collections - UnsafeList Provides support for UnsafeList<T>, an unsafe resizable list with no safety checks for maximum performance. -
Unity Collections - UnsafeParallelHashMap Provides support for UnsafeParallelHashMap<TKey, TValue>, an unsafe parallel-safe key-value dictionary. -
Unity Collections - UnsafeParallelHashSet Provides support for UnsafeParallelHashSet<T>, an unsafe parallel-safe set of unique values. -
Unity Collections - UnsafeParallelMultiHashMap Provides support for UnsafeParallelMultiHashMap<TKey, TValue>, an unsafe parallel-safe multi-hash map allowing multiple values per key. -
Unity Collections - UnsafePtrList Provides support for UnsafePtrList<T>, an unsafe pointer list with no safety checks for maximum performance. -
Unity Collections - UnsafeRingQueue Provides support for UnsafeRingQueue<T>, an unsafe fixed-size circular buffer. -
Unity Collections - UnsafeScratchAllocator Provides support for UnsafeScratchAllocator, a fixed-size buffer from which temporary allocations can be made. -
Unity Collections - UnsafeStream Provides support for UnsafeStream, an unsafe set of untyped append-only buffers. -
Unity Collections - UnsafeText Provides support for UnsafeText, an unsafe unmanaged, mutable, resizable UTF-8 string. -
Unity In-App Purchasing The Unity In-App Purchasing package lets you set up in-app purchases for your game across multiple app stores. The package isn't applicable for the Web platform. -
Unity UI Provides support for the Unity UI framework. -
WebGL Support Provides support for using the WebGL graphics API. -
WebGPU Support Provides support for using the WebGPU graphics API. Automatically includes: Compute Shader Support -
Compute Shader Support Provides support for compute shaders. -
XR Provides support for XR functionality. -
zlib A general purpose compression library. ≥6000.5.0a6