# lsyncd/lsyncd

Lsyncd (Live Syncing Daemon) synchronizes local directories with remote targets

Repository: https://github.com/lsyncd/lsyncd
Canonical: https://ross.abutalabs.com/products/lsyncd
Language: Lua
License: GPL-2.0
License Family: copyleft
Last push: 2024-11-27T15:11:27+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 5404, "days_push": 644, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6063, forks 478 (observed 2026-08-28T04:09:34.719914+00:00)

## What it is
Lsyncd is a live syncing daemon that watches local directory trees via inotify/fsevents and spawns rsync (or custom actions) to mirror changes to remote targets. It is a lightweight, one-way mirror solution configurable through shell scripts or Lua.

## Use cases
- keep a remote mirror of a local directory in near real-time
- sync files from a secure server to a less secure area over ssh
- live-mirror web content across servers without changing filesystems
- trigger custom sync actions on file change events
- replicate deployment files to multiple targets with low overhead

## When to choose
- you need simple one-way live directory mirroring without block devices or kernel modules
- you want rsync-based syncing triggered automatically by file events
- you need configurable sync actions via shell or Lua
- you're syncing from a secure area to a less secure one

## When to avoid
- you need two-way/bidirectional synchronization - lsyncd explicitly does not support it and data corruption is possible
- you're syncing databases or systems under heavy load - DRBD is better suited
- you need a FUSE-based or filesystem-level solution like GlusterFS or BindFS
- you need a actively maintained project - it is up for adoption and needs a new maintainer

## Facets
- artifact type: service
- maturity: maintenance
- function: file-system, backup, deployment, cli
- domain: files, self-hosted
- platform: cli, self-hosted
- tags: file-synchronization, rsync, inotify, live-mirror, lua, daemon, devops, automation, linux, macos

## Member repositories
- lsyncd/lsyncd (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:34.719914+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 2026-08-29T17:48:43.770508+00:00, confidence not recorded.
  - readme: https://github.com/lsyncd/lsyncd (fetched 2026-08-28T04:09:34.719914+00:00, sha 8d0b57e313c4)
- Data as of 2026-08-30T08:39:29.467469+00:00.