install

Additional install commands

macOS

Homebrewverified · 100%

brew install apng2gif

local Homebrew formula metadata

Linux

Debian aptverified · 92%

sudo apt install apng2gif

Debian stable package indexes · apng2gif · source: deb.debian.org

Nixverified · 92%

nix profile install nixpkgs#apng2gif

nixpkgs package indexes · pkgs/by-name/ap/apng2gif/package.nix · source: api.github.com

overview

Package summary

Convert APNG animations into animated GIF format

Project links

Commands and aliases

apng2gif

history

Project history and usage

apng2gif is a small SourceForge-hosted converter that turns Animated PNG files into animated GIFs. The official page says it respects APNG frame delays and loop counts while providing transparency-threshold and background-blending options.

Project history

The project page presents apng2gif as a focused APNG-to-GIF converter with both a command-line version and a Windows GUI. It is distributed through SourceForge along with source and prebuilt binaries for major desktop operating systems.

The SourceForge 1.8 file page records an improved APNG decoder based on apngdis 2.9, loop-count adjustment, duplicate-frame optimization, and 64-bit Windows binaries. That is about as much public project history as the official sources expose.

Adoption history

apng2gif adoption is naturally narrow: it serves people who keep high-quality APNG masters but still need GIF output for older or more constrained web/image pipelines. The official page explicitly frames webmasters as a practical audience.

How it is used

The documented command line is apng2gif anim.png [anim.gif] [-t tlevel] [-b bcolor]. The -t option controls transparency threshold, the -b option blends against a background color, and -b overrides -t.

The project page describes converting 24/32-bit APNG to a single global 256-color GIF palette using a Wu quantization grid, which is the practical tradeoff behind the tool: keep APNG masters, generate GIF fallbacks when needed.

Why package nerds care

apng2gif is the kind of tiny media converter package that survives because it does one format edge case well. Its value is not breadth; it is a low-friction CLI for APNG fallback assets and batch conversion.

It also sits in a small APNG tools family where each utility handles one direction or maintenance step in an animated-image workflow.

Timeline

2017-05-19: The SourceForge 1.8 file page records source and binary artifacts and README text.
2017-05-22: The SourceForge 1.8 file page records the 32-bit Windows GUI binary.
1.8: Release notes record an improved decoder based on apngdis 2.9 and duplicate-frame optimization.

Related projects

The official page links gif2apng, apngasm, apngdis, and apngopt as related APNG tools.

Sources

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

narrow executable package without higher-risk signals

Signals

metadata:no-higher-risk-signals

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 13 platform targets.
Installs with 1 runtime dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure	Note
`apng2gif`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08

manager version1.8

manager updated

local dataok

upstreamnot checked

latest detectednot detected

https://apng2gif.sourceforge.net/

infoNo package-manager update timestamp was available.low confidence
infoRelease/tag comparison is only available for GitHub repositories.https://apng2gif.sourceforge.net/none confidence

install metadata

Package metadata

Package key	brew:apng2gif
Version	1.8
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/apng2gif
Homepage	https://apng2gif.sourceforge.net/
Upstream docs	https://apng2gif.sourceforge.net/
License	libpng-2.0 AND Zlib
Source archive	https://downloads.sourceforge.net/project/apng2gif/1.8/apng2gif-1.8-src.zip
Dependencies	libpng
Bottle	available (on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	apng2gif
Version Scheme	0
Revision	0
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Debian apt95%

apng2gif 1.8-5+b1

tool for converting APNG images to animated GIF format

https://apng2gif.sourceforge.net

sudo apt install apng2gif

Section: graphics
Architecture: amd64
Source Package: apng2gif
4 dependencies
normalized package name match
Matched by: Apng2gif

Debian stable package indexes · deb.debian.org · Debian stable package indexes: apng2gif from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

Nix95%

apng2gif

nix profile install nixpkgs#apng2gif

normalized package name match
Matched by: Apng2gif

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/ap/apng2gif/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

Ubuntu apt95%

apng2gif 1.8-5build2

tool for converting APNG images to animated GIF format

https://apng2gif.sourceforge.net

sudo apt install apng2gif

Section: universe/graphics
Architecture: amd64
4 dependencies
normalized package name match
Matched by: Apng2gif

Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: apng2gif from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/apng2gif.yml

Used sources

Geiger risk classifier
Nucleus package database
av.db category and tag curation
cross-ecosystem install command graph
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment

Install apng2gif with Homebrew, apt, Nix