# trzsz

trzsz ( trz / tsz ) is a simple file transfer tool, similar to lrzsz ( rz / sz ), but compatible with tmux.

Repository: https://github.com/trzsz/trzsz
Canonical: https://ross.abutalabs.com/products/trzsz
Homepage: https://trzsz.github.io
Language: Python
License: MIT
License Family: permissive
Topics: rz, sz, tmux, iterm2, trzsz, trz, tsz, lrzsz, zmodem, macos
Last push: 2026-08-22T04:53:21+00:00
Link (homepage): https://trzsz.github.io

## Health v2 (maintenance only)
Score: 88/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 67, longevity 100
- inputs: {"age_days": 1729, "days_push": 11, "days_rel": 11, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1445, forks 63 (observed 2026-08-28T04:04:45.064337+00:00)

## What it is
trzsz (trz/tsz) is a simple file transfer tool for SSH terminals, similar to lrzsz (rz/sz), but compatible with tmux. It supports directory transfer, breakpoint resume, drag-and-drop upload, progress bars, and works across Python, Go, and JavaScript implementations.

## Use cases
- transfer files over ssh inside tmux
- upload files to remote server from terminal
- download files from remote server over ssh
- replace rz sz with a tmux-compatible tool
- transfer files through ssh jump hosts and docker
- drag and drop files to upload over ssh terminal
- resume interrupted file transfers over ssh

## When to choose
- you need rz/sz-style file transfer but use tmux
- you transfer files through multi-hop ssh chains (laptop -> host -> docker) where scp/sftp is inconvenient
- you want directory transfer, resume, and progress bars in the terminal
- you need file transfer in web terminals or iTerm2

## When to avoid
- you need bulk automated file sync rather than interactive terminal transfers
- your terminal does not support trzsz and you cannot use trzsz ssh or tssh
- you need high-throughput transfers better served by scp/rsync/sftp

## Facets
- artifact type: cli-tool
- maturity: active
- function: file-upload, developer-tools, cli
- domain: developer-tools, files, networking
- platform: windows, cli, python, go, cross-platform
- tags: file-transfer, ssh, tmux, zmodem, lrzsz-alternative, terminal, command-line, linux, macos

## Member repositories
- trzsz/trzsz (main) score 88
- trzsz/trzsz-go (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:45.064337+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:36:12.041544+00:00, confidence not recorded.
  - readme: https://github.com/trzsz/trzsz (fetched 2026-08-28T04:04:45.064337+00:00, sha e6184b7dbb73)
  - homepage: https://trzsz.github.io (fetched 2026-08-29T11:46:02.371448+00:00, sha e782f983270f)
- Data as of 2026-08-30T08:39:29.467469+00:00.