---
name: "igzip"
section: "1"
platform: "linux"
package: "isa-l"
version: "2.32.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/igzip"
---

# igzip(1)

compress or decompress files similar to gzip

## NAME

igzip - compress or decompress files similar to gzip

## SYNOPSIS

**igzip** \[*options*\] \[*infiles*\]

## DESCRIPTION

Compress or decompress files similar to gzip using the ISA-L fast deflate library.

Output .gz files are compatible with gzip and \[RFC-1952\].

Options are similar to gzip except --keep is default.

## OPTIONS

- **-h**, **--help**

  help, print this message

- \-#

  use compression level # with 0 \<= # \<= 3

- **-o**

  \<file\>           output file

- **-c**, **--stdout**

  write to stdout

- **-d**, **--decompress**

  decompress file

- **-z**, **--compress**

  compress file (default)

- **-f**, **--force**

  overwrite output without prompting

- **--rm**

  remove source files after successful (de)compression

- **-k**, **--keep**

  keep source files (default)

- **-S**, **--suffix** \<.suf\>

  suffix to use while (de)compressing

- **-V**, **--version**

  show version number

- **-v**, **--verbose**

  verbose mode

- **-N**, **--name**

  save/use file name and timestamp in compress/decompress

- **-n**, **--no-name**

  do not save/use file name and timestamp in compress/decompress

- **-t**, **--test**

  test compressed file integrity

- **-T**, **--threads** \<n\>

  use n threads to compress if enabled

- **-q**, **--quiet**

  suppress warnings

with no infile, or when infile is - , read standard input

## EXAMPLES

Make compressed file1.gz and file2.gz and keep file1 and file2.

**igzip file1 file2**

Piped compression and decompression.

**igzip -c file.txt \| igzip -d -c -**

Streaming compression from output of tar, compress level 2.

**tar cf - dir1 \| igzip -2 \> dir1.tar.gz**

## REPORTING BUGS

Report bugs to https://github.com/intel/isa-l/issues