js.node.zlib

..
Deflate

Compress data using deflate.

DeflateRaw

Compress data using deflate, and do not append a zlib header.

Gunzip

Decompress a gzip stream.

Gzip

Compress data using gzip.

Inflate

Decompress a deflate stream.

InflateRaw

Decompress a raw deflate stream.

Unzip

Decompress either a Gzip- or Deflate-compressed stream by auto-detecting the header.

Zlib

Not exported by the zlib module. It is documented here because it is the base class of the compressor/decompressor classes.