Zstd
| Zstandard | |
|---|---|
| Original author(s) | Yann Collet | 
| Developer(s) | Yann Collet, Nick Terrell, Przemysław Skibiński | 
| Initial release | 23 January 2015 | 
| Stable release | 1.5.7 
   / 20 February 2025 | 
| Repository | |
| Written in | C | 
| Operating system | Cross-platform | 
| Platform | Portable | 
| Type | Data compression | 
| License | BSD-3-Clause or GPL-2.0-or-later (dual-licensed) | 
| Website | facebook | 
Zstandard is a lossless data compression algorithm developed by Yann Collet at Facebook. Zstd is the corresponding reference implementation in C, released as open-source software on 31 August 2016.
The algorithm was published in 2018 as RFC 8478, which also defines an associated media type "application/zstd", filename extension "zst", and HTTP content encoding "zstd".