Do Star Trek replicators turn energy directly into matter?

Aren't Star Trek replicators direct energy-to-matter converters?

They can use energy, but later replicators are also described as rearranging existing matter; the original series' food synthesizers are a separate technology.

The reply distinguishes the original series' food synthesizers from the replicators used from The Next Generation onward. Later replicators are described as rearranging molecules and atoms, with either energy or disassembled matter available as an input. References to replicator blocks are explained as a way to supply matter that can be rearranged more efficiently. This is a clarification of the fictional technology during the food debate, not a claim that such equipment exists.