epsilon

Install command:
brew install epsilon

Powerful wavelet image compressor

https://sourceforge.net/projects/epsilon-project/

License: BSD-3-Clause AND (GPL-3.0-or-later OR LGPL-3.0-or-later)

Development: Pull requests

Formula JSON API: /api/formula/epsilon.json

Formula code: epsilon.rb on GitHub

Bottle (binary package) installation support provided for:

macOS on
Apple Silicon
golden gate ✅
tahoe ✅
sequoia ✅
sonoma ✅
ventura ✅
monterey ✅
big sur ✅
macOS on
Intel
sonoma ✅
ventura ✅
monterey ✅
big sur ✅
Linux ARM64 ✅
x86_64 ✅

Current versions:

stable ✅ 0.9.2

Depends on:

popt 1.19 Library like getopt(3) with a number of enhancements

Depends on when building from source:

autoconf 2.73 Automatic configure script builder
automake 1.20 Tool for generating GNU Standards-compliant Makefiles
libtool 2.6.2 Generic library support script

Binaries: epsilon, start_epsilon_nodes.pl, stop_epsilon_nodes.pl

GitHub Packages downloads:

Last 30 days38,305
Downloads2,180,836
Analytics install events (30 days)2,196
Downloads / install events (30 days)17.4×

Source: GitHub Packages, fetched 2026-11-10T00:51:14Z. Analytics dates: 2026-10-11 to 2026-11-10. Totals exclude downloads from Bintray before the migration to GitHub Packages. Downloads and install attempts measure different things; the difference does not count analytics opt-outs. Definitions and limitations.

Analytics:

30 days90 days365 days
Installs2,1964,13020,841
Installs (--HEAD)002
Installs on Request81368
Build Errors0