---
name: "guetzli"
section: "1"
platform: "linux"
package: "guetzli"
version: "1.0.1-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/guetzli"
---

# guetzli(1)

perceptual JPEG encoder

## NAME

guetzli - perceptual JPEG encoder

## SYNOPSYS

**guetzli** *\[flags\]* input\_filename output\_filename

## DESCRIPTION

Guetzli is a JPEG encoder that aims for excellent compression density at high visual quality. Guetzli-generated images are typically 20-30% smaller than images of equivalent quality generated by libjpeg. Guetzli generates only sequential (nonprogressive) JPEGs due to faster decompression speeds they offer.

## OPTIONS

- **--verbose**

  Print a verbose trace of all attempts to standard output.

- **--quality Q**

  Visual quality to aim for, expressed as a JPEG quality value.

- **--memlimit M**

  Memory limit in MB. Guetzli will fail if unable to stay under the limit. Default is 6000 MB

- **--nomemlimit**

  Do not limit memory usage.

## AUTHOR

This manual page was written by ChangZhuo Chen *\<czchen@debian.org\>* for the **Debian GNU/Linux system** (but may be used by others).