Block Support

This document is part of the WordPress block reference and is intended for developers.

Block supports are a set of options that enables or disables block controls in the editor. Block supports are added to the block’s block.json file during block development (Not to be confused with theme.json which is used in theme development).


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Experimental block supports are subject to change and are prefixed with “__experimental”.

This can mean that the feature is new or needs to be tested before it can be considered stable. It can also mean that there are planned changes, or that there are known bugs or difficulties with the implementation.

As a block developer you may use these but be aware that the specifics of the feature might change.

For developers

View blocks per attribute or block support: