Shared Brotli Compressed Data Format

Document Type Expired Internet-Draft (individual)
Authors Jyrki Alakuijala  , Thai Duong  , Evgenii Kliuchnikov  , Robert Obryk  , Zoltan Szabadka  , Lode Vandevenne 
Last updated 2022-01-27 (latest revision 2021-07-26)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This specification defines a data format for shared brotli compression, which adds support for shared dictionaries, large window, patching and a container format to brotli [RFC7932]. Shared dictionaries and large window support allow significant compression gains compared to regular brotli, and patching allows smaller patches of binary files.


Jyrki Alakuijala (
Thai Duong (
Evgenii Kliuchnikov (
Robert Obryk (
Zoltan Szabadka (
Lode Vandevenne (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)