macOS
Homebrewverified · 100%
brew install nyancatlocal Homebrew formula metadata
brew / rank 3907
Install nyancat with Homebrew, apk, apt, dnf, Nix, pacman, zypper
Renders an animated, color, ANSI-text loop of the Poptart Cat. Version 1.5.2 via Homebrew; verified from local package data. Also installable with debian: sudo apt install nyancat.
install
Additional install commands
Linux
Alpine Linux apkverified · 92%
sudo apk add nyancatAlpine Linux edge package indexes · nyancat · source: dl-cdn.alpinelinux.org
Debian aptverified · 92%
sudo apt install nyancatDebian stable package indexes · nyancat · source: deb.debian.org
Fedora dnfverified · 92%
sudo dnf install nyancatFedora Rawhide package metadata · nyancat · source: dl.fedoraproject.org
Nixverified · 92%
nix profile install nixpkgs#nyancatnixpkgs package indexes · pkgs/by-name/ny/nyancat/package.nix · source: api.github.com
Arch Linux pacmanverified · 92%
sudo pacman -S nyancatArch Linux sync databases · nyancat · source: geo.mirror.pkgbuild.com
openSUSE zypperverified · 92%
sudo zypper install nyancatopenSUSE Tumbleweed package metadata · nyancat · source: download.opensuse.org
overview
Package summary
Renders an animated, color, ANSI-text loop of the Poptart Cat
Project links
Commands and aliases
- nyancat
history
Project history and usage
nyancat is the terminal version of the Nyan Cat / Poptart Cat animation, rendered with ANSI escape sequences and usable either as a standalone program or as a telnet-service payload. The upstream repository describes it as the source for the Debian nyancat package.
Project history
The klange/nyancat repository was created on 2011-11-30, during the original wave of Nyan Cat terminal jokes. The README credits prguitarman for the original animation and licenses the code under the NCSA license.
Adoption history
Unlike many joke programs, nyancat became widely packaged. Its README lists availability in Arch, Debian, Fedora, Gentoo, Mandriva, Ubuntu, FreeBSD, OpenBSD, and NetBSD, and Homebrew reported stable version 1.5.2 with 988 installs over the 365-day analytics window queried on 2026-07-01.
How it is used
Users run nyancat directly for a terminal animation, build it with make for source installs, or run nyancat -t from an inetd-style service to expose a telnet server. The public nyancat.dakko.us telnet server page says the original hosted service was shut down because of bandwidth limits, leaving mirrors and local installs as the practical paths.
Why package nerds care
nyancat is a canonical example of a harmless meme becoming a real distro package. It is useful for testing ANSI color support, terminal animation behavior, package-manager reach, and whether a packaging ecosystem has room for software whose value is delight rather than productivity.
Timeline
- 2011-11-30: klange/nyancat repository created.
- 2010s: packaged across major Linux and BSD distributions according to upstream README.
- 2026-07-01: Homebrew formula API reported stable version 1.5.2.
Related projects
- Nyan Cat
- nyancat.dakko.us telnet server
- Debian nyancat package
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 bottle metadata was recorded.
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 |
|---|---|---|---|
nyancat | executable | indexed executable | Discovered from the local executable index. |
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 generated2026-08-03
manager version1.5.2
manager updated
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:nyancat |
|---|---|
| Version | 1.5.2 |
| Package manager | Homebrew |
| Homepage | https://nyancat.dakko.us/ |
| Repository | https://github.com/klange/nyancat |
| Bottle | not recorded |
| Service | none declared |
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%
nyancat 1.5.2-0.3
Animated terminal Nyancat
https://github.com/klange/nyancat
sudo apt install nyancat- Section: misc
- Architecture: amd64
- 1 dependencies
- normalized package name match
- Matched by: Nyancat
Debian apt95%
nyancat-server 1.5.2-0.3
Animated terminal Nyancat server configurations
https://github.com/klange/nyancat
sudo apt install nyancat-server- Section: misc
- Architecture: all
- Source Package: nyancat
- 1 dependencies
- normalized package name match
- Matched by: Nyancat
Nix95%
nyancat
nix profile install nixpkgs#nyancat- normalized package name match
- Matched by: Nyancat
Ubuntu apt95%
nyancat 1.5.2-0.2
Animated terminal Nyancat
https://github.com/klange/nyancat
sudo apt install nyancat- Section: universe/misc
- Architecture: amd64
- 1 dependencies
- normalized package name match
- Matched by: Nyancat
Ubuntu apt95%
nyancat-server 1.5.2-0.2
Animated terminal Nyancat server configurations
https://github.com/klange/nyancat
sudo apt install nyancat-server- Section: universe/misc
- Architecture: all
- Source Package: nyancat
- 1 dependencies
- normalized package name match
- Matched by: Nyancat
apk95%
nyancat 1.5.2-r1
Nyancat in your terminal, rendered through ANSI escape sequences
sudo apk add nyancat- License: NCSA
- Architecture: x86_64
- Source Package: nyancat
- 1 dependencies
- 1 provides
- normalized package name match
- Matched by: Nyancat
apk95%
nyancat-doc 1.5.2-r1
Nyancat in your terminal, rendered through ANSI escape sequences (documentation)
sudo apk add nyancat-doc- License: NCSA
- Architecture: x86_64
- Source Package: nyancat
- normalized package name match
- Matched by: Nyancat
dnf95%
nyancat 1.5.2-19.fc45
Nyancat rendered in your terminal
https://github.com/klange/nyancat
sudo dnf install nyancat- License: NCSA
- Category: Unspecified
- Architecture: x86_64
- Source Package: nyancat
- 2 dependencies
- 1 provides
- normalized package name match
- Matched by: Nyancat
pacman95%
nyancat 1.5.2-3
Nyancat rendered in your terminal.
sudo pacman -S nyancat- License: custom:NCSA
- Architecture: x86_64
- 1 dependencies
- normalized package name match
- Matched by: Nyancat
zypper95%
nyancat 1.5.2-2.18
The flying rainbow cat rendered in a terminal
https://github.com/klange/nyancat
sudo zypper install nyancat- License: NCSA
- Category: Amusements/Toys/Other
- Architecture: x86_64
- Source Package: nyancat
- 1 dependencies
- 1 provides
- normalized package name match
- Matched by: Nyancat
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.
Used sources
- Geiger risk classifier
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- pkg.so package database
- pkgdb category and tag curation