# zrepl/zrepl

One-stop ZFS backup & replication solution

Repository: https://github.com/zrepl/zrepl
Canonical: https://ross.abutalabs.com/products/zrepl
Homepage: https://zrepl.github.io
Language: Go
License: MIT
License Family: permissive
Topics: zfs, go, golang, replication, snapshot, backup, bookmark, incremental
Last push: 2026-05-19T22:15:41+00:00

## Health v2 (maintenance only)
Score: 71/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 83, release rhythm 39, longevity 100
- inputs: {"age_days": 3429, "days_push": 106, "days_rel": 199, "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 1156, forks 111 (observed 2026-08-28T04:03:48.172245+00:00)

## What it is
zrepl is a one-stop ZFS backup and replication tool written in Go. It handles periodic snapshotting, incremental replication over TCP/TLS/SSH, pruning, and bookmark/hold management between ZFS systems.

## Use cases
- replicate zfs datasets to a backup server
- schedule periodic zfs snapshots with pruning
- send zfs snapshots incrementally over ssh or tls
- back up zfs pools to untrusted receivers with encrypted raw send
- set up pull-based zfs replication from production to backups

## When to choose
- you use ZFS and want an integrated snapshot, replication, and pruning daemon
- you need resumable, incremental replication with automatic retries
- you want encrypted raw sends to untrusted backup targets

## When to avoid
- your filesystems are not ZFS
- you only need simple one-off snapshot copies without automation
- you need a GUI-driven backup solution

## Facets
- artifact type: cli-tool
- maturity: active
- function: backup, file-system, scheduling, networking
- domain: self-hosted, files
- platform: bsd, cli, go
- tags: zfs, replication, snapshots, incremental-backup, pruning, tls, ssh, backup, devops, linux, macos

## Member repositories
- zrepl/zrepl (main) score 71

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:48.172245+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 2026-08-30T06:32:09.973531+00:00, confidence not recorded.
  - readme: https://github.com/zrepl/zrepl (fetched 2026-08-28T04:03:48.172245+00:00, sha d07771667840)
  - homepage: https://zrepl.github.io (fetched 2026-08-29T12:37:17.813693+00:00, sha b4aa1611d7fa)
- Data as of 2026-08-30T08:39:29.467469+00:00.