Encodes the values of the specified attributes to the desired encoding. If the incoming attribute is Null, the type of the attribute will be set to the desired encoding but the output value will be Null.

Jump to Configuration

Typical Uses

  • Converting attributes to a known encoding type

How does it work?

The AttributeEncoder receives any type of feature. Once connected, you may choose All Attributes or choose Selected Attributes for encoding. A wide variety of encoding types is available, including multiple languages, Unicode types, ISO types, and more.

You may either convert and mark the attributes with the new encoding (using the Honor Encoding option for Incoming Attributes), or simply mark them without conversion (Use Bytes for Incoming Attributes).

Usage Notes

  • Unless a scenario requires re-encoding (or encoding definition) within the workspace, consider using the encoding parameters in your readers and writers instead of the AttributeEncoder.


Input Ports

Output Ports


Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

Dialog Options - Tables

Transformers with table-style parameters have additional tools for populating and manipulating values.


Processing Behavior


Feature Holding


Dependencies None

FME Community

The FME Community is the place for demos, how-tos, articles, FAQs, and more. Get answers to your questions, learn from other users, and suggest, vote, and comment on new features.

Search for all results about the AttributeEncoder on the FME Community.


Examples may contain information licensed under the Open Government Licence – Vancouver and/or the Open Government Licence – Canada.