--- name: SerializationService last_updated: 2026-06-11T23:11:57Z inherits: - Instance - Object type: class memory_category: Instances tags: - NotCreatable - Service --- # Class: SerializationService ## Methods ### Method: SerializationService:DeserializeInstancesAsync **Signature:** `SerializationService:DeserializeInstancesAsync(buffer: buffer): List` Deserializes a [buffer](/docs/reference/engine/globals/buffer.md) containing `.rbxm` content, returning a list of [instances](/docs/reference/engine/classes/Instance.md). This API can only be called from Studio plugins or Open Cloud Luau Execution Sessions. If non-creatable instances or services are included in the content, an error is thrown. No stability contract is offered for the `.rbxm` format and the composition of this data may change at any time. This API will faithfully parse `.rbxm` content that was serialized by the Roblox engine, including `.rbxm` files generated by Studio or via [SerializeInstancesAsync()](/docs/reference/engine/classes/SerializationService.md). Although it is possible to use this API to deserialize `.rbxm` content generated by any other means, this is done at the user's own risk. The engine may fail to deserialize such content faithfully, or at all. *Yields · Security: None · Thread Safety: Unsafe · Capabilities: PluginOrOpenCloud* **Parameters:** | Name | Type | Default | Description | |------|------|---------|-------------| | `buffer` | `buffer` | | | **Returns:** `List` **SerializationService:SerializeInstancesAsync** ```lua local SerializationService = game:GetService("SerializationService") local part = Instance.new("Part") part.Name = "MyPart" local contentBuffer: buffer = SerializationService:SerializeInstancesAsync({ part }) local instances: { Instance } = SerializationService:DeserializeInstancesAsync(contentBuffer) print(instances) -- {MyPart} ``` **Expected output:** {MyPart} ### Method: SerializationService:SerializeInstancesAsync **Signature:** `SerializationService:SerializeInstancesAsync(inputInstances: List): buffer` Serializes a list of [instances](/docs/reference/engine/classes/Instance.md) to the `.rbxm` format, returning a [buffer](/docs/reference/engine/globals/buffer.md) or `.rbxm` content. This API can only be called from Studio plugins or Open Cloud Luau Execution Sessions. If non-creatable instances or services are included in the list of instances, an error is thrown. No stability contract is offered for the `.rbxm` format and the composition of this data may change at any time. This API will serialize content according to the serialization behavior of the current engine version. Although it is possible for other tools to parse `.rbxm` content, this is done at the user's own risk. The engine may still generate `.rbxm` content that 3rd-party tools fail to parse faithfully. *Yields · Security: None · Thread Safety: Unsafe · Capabilities: PluginOrOpenCloud* **Parameters:** | Name | Type | Default | Description | |------|------|---------|-------------| | `inputInstances` | `List` | | | **Returns:** `buffer` **SerializationService:SerializeInstancesAsync** ```lua local SerializationService = game:GetService("SerializationService") local part = Instance.new("Part") part.Name = "MyPart" local contentBuffer: buffer = SerializationService:SerializeInstancesAsync({ part }) local instances: { Instance } = SerializationService:DeserializeInstancesAsync(contentBuffer) print(instances) -- {MyPart} ``` **Expected output:** {MyPart} ## Inherited Members ### From [Instance](/docs/reference/engine/classes/Instance.md) - **Property `Archivable`** (`boolean`): Determines if an Instance and its descendants can be cloned using - **Property `archivable`** (`boolean`): *(deprecated, hidden)* - **Property `Capabilities`** (`SecurityCapabilities`): The set of capabilities allowed to be used for scripts inside this - **Property `Name`** (`string`): A non-unique identifier of the Instance. - **Property `Parent`** (`Instance`): Determines the hierarchical parent of the Instance. - **Property `PredictionMode`** (`PredictionMode`): - **Property `RobloxLocked`** (`boolean`): A deprecated property that used to protect CoreGui objects. *(hidden)* - **Property `Sandboxed`** (`boolean`): When enabled, the instance can only access abilities in its `Capabilities` - **Property `UniqueId`** (`UniqueId`): A unique identifier for the instance. - **Method `AddTag(tag: string): ()`**: Applies a tag to the instance. - **Method `children(): Instances`**: Returns an array of the object's children. *(deprecated)* - **Method `ClearAllChildren(): ()`**: This method destroys all of an instance's children. - **Method `Clone(): Instance`**: Create a copy of an instance and all its descendants, ignoring instances - **Method `clone(): Instance`**: *(deprecated)* - **Method `Destroy(): ()`**: Sets the Instance.Parent property to `nil`, locks the - **Method `destroy(): ()`**: *(deprecated)* - **Method `FindFirstAncestor(name: string): Instance?`**: Returns the first ancestor of the Instance whose - **Method `FindFirstAncestorOfClass(className: string): Instance?`**: Returns the first ancestor of the Instance whose - **Method `FindFirstAncestorWhichIsA(className: string): Instance?`**: Returns the first ancestor of the Instance for whom - **Method `FindFirstChild(name: string, recursive?: boolean): Instance?`**: Returns the first child of the Instance found with the given name. - **Method `findFirstChild(name: string, recursive?: boolean): Instance`**: *(deprecated)* - **Method `FindFirstChildOfClass(className: string): Instance?`**: Returns the first child of the Instance whose - **Method `FindFirstChildWhichIsA(className: string, recursive?: boolean): Instance?`**: Returns the first child of the Instance for whom - **Method `FindFirstDescendant(name: string): Instance?`**: Returns the first descendant found with the given Instance.Name. - **Method `GetActor(): Actor?`**: Returns the Actor associated with the Instance, if any. - **Method `GetAttribute(attribute: string): Variant`**: Returns the value which has been assigned to the given attribute name. - **Method `GetAttributeChangedSignal(attribute: string): RBXScriptSignal`**: Returns an event that fires when the given attribute changes. - **Method `GetAttributes(): Dictionary`**: Returns a dictionary of the instance's attributes. - **Method `GetChildren(): Instances`**: Returns an array containing all of the instance's children. - **Method `getChildren(): Instances`**: *(deprecated)* - **Method `GetDebugId(scopeLength?: int): string`**: Returns a coded string of the debug ID used internally by Roblox. - **Method `GetDescendants(): Instances`**: Returns an array containing all of the descendants of the instance. - **Method `GetFullName(): string`**: Returns a string describing the instance's ancestry. - **Method `GetStyled(name: string, selector: string?): Variant`**: Returns the styled or explicitly modified value of the specified property, - **Method `GetStyledPropertyChangedSignal(property: string): RBXScriptSignal`**: - **Method `GetTags(): Array`**: Gets an array of all tags applied to the instance. - **Method `HasTag(tag: string): boolean`**: Check whether the instance has a given tag. - **Method `IsAncestorOf(descendant: Instance): boolean`**: Returns true if an Instance is an ancestor of the given - **Method `IsDescendantOf(ancestor: Instance): boolean`**: Returns `true` if an Instance is a descendant of the given - **Method `isDescendantOf(ancestor: Instance): boolean`**: *(deprecated)* - **Method `IsPropertyModified(property: string): boolean`**: Returns `true` if the value stored in the specified property is not equal - **Method `QueryDescendants(selector: string): Instances`**: Returns an array containing all descendants of the instance that match the - **Method `Remove(): ()`**: Sets the object's `Parent` to `nil`, and does the same for all its *(deprecated)* - **Method `remove(): ()`**: *(deprecated)* - **Method `RemoveTag(tag: string): ()`**: Removes a tag from the instance. - **Method `ResetPropertyToDefault(property: string): ()`**: Resets a property to its default value. - **Method `SetAttribute(attribute: string, value: Variant): ()`**: Sets the attribute with the given name to the given value. - **Method `WaitForChild(childName: string, timeOut: double): Instance`**: Returns the child of the Instance with the given name. If the - **Event `AncestryChanged`**: Fires when the Instance.Parent property of this object or one of - **Event `AttributeChanged`**: Fires whenever an attribute is changed on the Instance. - **Event `ChildAdded`**: Fires after an object is parented to this Instance. - **Event `childAdded`**: *(deprecated)* - **Event `ChildRemoved`**: Fires after a child is removed from this Instance. - **Event `DescendantAdded`**: Fires after a descendant is added to the Instance. - **Event `DescendantRemoving`**: Fires immediately before a descendant of the Instance is removed. - **Event `Destroying`**: Fires immediately before (or is deferred until after) the instance is - **Event `StyledPropertiesChanged`**: Fires whenever any style property is changed on the instance, including ### From [Object](/docs/reference/engine/classes/Object.md) - **Property `ClassName`** (`string`): A read-only string representing the class this Object belongs to. - **Property `className`** (`string`): *(deprecated)* - **Method `GetPropertyChangedSignal(property: string): RBXScriptSignal`**: Get an event that fires when a given property of the object changes. - **Method `IsA(className: string): boolean`**: Returns true if an object's class matches or inherits from a given class. - **Method `isA(className: string): boolean`**: *(deprecated)* - **Event `Changed`**: Fires immediately after a property of the object changes, with some