node‑zopfli‑es provides Node.js bindings (both streaming and buffer‑based APIs) to the Zopfli compression library, letting developers create gzip/deflate/zlib files that are about 5 % smaller than standard gzip at the cost of much slower performance. It is intended for Node projects that need maximum static‑asset compression (e.g., pre‑compressing files for CDNs or build pipelines), but the package is now deprecated in favor of the revived node‑zopfli.