# zstd > Compress or decompress files with Zstandard compression. > More information: . - Compress a file into a new file with the `.zst` suffix: `zstd {{path/to/file}}` - Decompress a file: `zstd --decompress {{path/to/file.zst}}` - Decompress to `stdout`: `zstd --decompress --stdout {{path/to/file.zst}}` - Compress a file specifying the compression level, where 1=fastest, 19=slowest and 3=default: `zstd -{{level}} {{path/to/file}}` - Unlock higher compression levels (up to 22) using more memory (both for compression and decompression): `zstd --ultra -{{level}} {{path/to/file}}`