Jump to main content Jump to doc navigation

Name: Enable zlib Output Compression for Manager JS/CSS
Type: Yes/No
Default: No Available In: Revolution 2.2.0+

Whether or not to enable zlib output compression for compressed CSS/JS in the manager. Do not turn this on unless you are sure the PHP config variable zlib.output_compression can be set to 1. MODX recommends leaving it off.

Support the team building MODX with a monthly donation.

The budget raised through OpenCollective is transparent, including payouts, and any contributor can apply to be paid for their work on MODX.


  • modmore
  • Jens Wittmann – Gestaltung & Entwicklung
  • Fabian Christen
  • Dannevang Digital
  • Digital Penguin
  • Sepia River Studios
  • CrewMark
  • Chris Fickling
  • deJaya
  • Following Sea
  • Anton Tarasov
  • eydolan
  • Raffy
  • Lefthandmedia
  • Murray Wood
  • Nick Clark
  • Snow Creative
  • Helen
  • JT Skaggs
  • krisznet
  • YJ
  • Yanni
  • Richard


$370 per month—let's make that $500!

Learn more