install

Additional install commands

macOS

Homebrewverified · 100%

brew install t2sz

local Homebrew formula metadata

Linux

Alpine Linux apkverified · 92%

sudo apk add t2sz

Alpine Linux edge package indexes · t2sz · source: dl-cdn.alpinelinux.org

overview

Package summary

Compress a file into a seekable zstd with per-file seeking for tar archives

Project links

Commands and aliases

t2sz

history

Project history and usage

t2sz is a command-line compressor for seekable Zstandard output, with special handling for tar archives so individual tar members can be reached without decompressing the whole archive.

Project history

The README expands the name as tar to seekable zstd: a tar archive is compressed with each file in an independent Zstandard frame. GitHub repository metadata records the public repository creation in December 2020.

Adoption history

The README advertises package-manager paths for AUR, Homebrew, Snap, Debian-style release packages, and source builds. The Homebrew input also records Alpine and Homebrew packaging, which fits a niche utility used by archive and compression users rather than a broad desktop audience.

How it is used

t2sz runs in tar mode for .tar input by default and raw mode for other files, accepts stdin and stdout, exposes compression-level and block-size controls, and produces output readable by ordinary Zstandard tools. Seeking benefits require companion readers such as libzstd-seek, indexed_zstd, or ratarmount.

Why package nerds care

Package nerds care because t2sz sits at the intersection of tar, zstd, random access, and archival ergonomics: it preserves standard decompression while adding structure that downstream tooling can exploit.

Timeline

2020: The public GitHub repository was created.
2026: GitHub releases show v1.2.x releases, with v1.2.5 published on 2026-03-08.
2026: The README documents Homebrew installation on Linux and macOS.

Related projects

The README names zstd, libzstd-seek, indexed_zstd, and ratarmount as related projects for compression and seekable reading.

Sources

https://api.github.com/repos/martinellimarco/t2sz
https://api.github.com/repos/martinellimarco/t2sz/releases
https://github.com/martinellimarco/t2sz#readme
input.source_facts.package-manager

security posture

Risk level: blue

broad file, network, media, or database tool signal.

Risk classifier

blue risk · medium confidence · tool

Why

broad file, network, media, or database tool signal

Signals

text:archive,compress

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Installs with 1 runtime dependencies.
Build metadata lists 1 build 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
`t2sz`	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 version1.2.5

manager updated

local dataok

upstreamcurrent

latest detectedv1.2.5

https://github.com/martinellimarco/t2sz

infoNo package-manager update timestamp was available.low confidence

install metadata

Package metadata

Package key	brew:t2sz
Version	1.2.5
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/t2sz
Homepage	https://github.com/martinellimarco/t2sz
Repository	https://github.com/martinellimarco/t2sz
Upstream docs	https://github.com/martinellimarco/t2sz#readme
License	GPL-3.0-or-later
Source archive	https://github.com/martinellimarco/t2sz/archive/refs/tags/v1.2.5.tar.gz
Dependencies	zstd
Build dependencies	cmake
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, 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	t2sz
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.

apk95%

t2sz 1.1.2-r0

t2sz compress a file into a seekable zstd with special handling for tar archives.

https://github.com/martinellimarco/t2sz

sudo apk add t2sz

License: GPL-3.0-or-later
Architecture: x86_64
Source Package: t2sz
1 dependencies
1 provides
normalized package name match
Matched by: T2sz

Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: t2sz from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.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/t2sz.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 t2sz with Homebrew, apk