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Graft is an open-source transactional storage engine optimized for lazy, partial, and strongly consistent replication—perfect for edge, offline-first, and distributed applications.
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Synchronize configuration of multiple Pi-hole v6.x instances.
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Pulsarr: Real-time Plex watchlist monitoring and content acquisition tool. Seamlessly sync Plex watchlists with Sonarr and Radarr, featuring intelligent content routing, multi-instance support, genre-based filtering, and Discord notifications. Automate your media library management with a modern, user-friendly interface.
Mozilla Sync Storage built with Rust.
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Open Source File Sync&Share and Document Collaboration Platform
Seafile is an open source file sync and share platform, focusing on reliability and performance. Seafile's built-in collaborative document SeaDoc, make it easy for collaborative writing and publishing documents.
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A tool that synchronizes your YouTube playlists and other music providers with your Cloud Storage like Nextcloud as MP3s.
Synchronize tracking repositories. Safe and simple one-script git synchronization.
This script intends to sync near-automatically via git in "tracking" repositories where a nice history is not as crucial as having one.
Suppose you have a set of text files you care about, multiple machines to work on, and a central git repository (a.k.a. bare repository) at your disposal. You do not care about atomic commits, but coarse versioning and backup is grave. For example, server configuration or org-mode files.
Unison is a file-synchronization tool for POSIX-compliant systems (e.g. *BSD, GNU/Linux, macOS) and Windows. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date by propagating the changes in each replica to the other.
muchsync synchronizes notmuch mail across machines.
muchsync brings notmuch to all of your computers by synchronizing your mail
messages and notmuch tags across machines.
The protocol uses pipelines to work efficiently over high-latency networks
such as mobile broadband.
Lieer is a fast email-fetching, sending,
and two-way tag synchronization between notmuch and GMail.
This program can pull, and send, email and labels (and changes to labels)
from your GMail account and store them locally in a maildir with the labels
synchronized with a notmuch database.
The changes to tags in the notmuch database may be pushed back remotely to
the GMail account.
vdirsyncer is a command-line tool for synchronizing calendars and
address books between a variety of servers and the local filesystem.
The most popular use case is to synchronize a server with a local folder
and use a set of other programs to change the local events and contacts.
vdirsyncer can then synchronize those changes back to the server.
OfflineIMAP downloads mailbox(es) to a local Maildir(s),
and synchronizes both sides via IMAP.
This allows reading the mails while offline without the need the mail reader
(MUA) to support disconnected operations.
Self-hosted service to sync your plex, jellyfin and emby play state. without relying on 3rd-party external services.
Secure Data Sync.
Secure, end-to-end encrypted, and privacy respecting sync for your contacts, calendars, tasks and notes.
Easy to use and open source - it seamlessly integrates with your existing apps so you won't even notice you are using it!
- EteSync server @ GitHub.
- etesync-dav @ GitHub
is a CalDAV and CardDAV adapter for EteSync.
A utility to help you sync playlists from spotify to your jellyfin server.
Jellyplist aims to be a companion app for your self-hosted Jellyfin Server. With Jellyplist you will be able to replicate/sync playlists from Spotify to your local Jellyfin account. Under the hood, it uses SpotDL for downloading the corresponding tracks from the available sources if a track isn´t found in your local library.
CalDAV, CardDAV and WebDAV for Android.
Sync your contacts, calendars and tasks. Get live-access to your WebDAV Cloud files.
All-in-one CalDAV/CardDAV/WebDAV solution for Android.
DAVx⁵ is an open-source CalDAV/CardDAV suite and sync app for Android. You can also access your online files (WebDAV) with it.
Synchronize Files and Folders.
FreeFileSync is a folder comparison and synchronization software that creates and manages backup copies of all your important files.
Self-hosted LiveSync is a community-implemented synchronization plugin, available on every obsidian-compatible platform and using CouchDB or Object Storage (e.g., MinIO, S3, R2, etc.) as the server.
QOwnNotes is a plain-text file notepad and todo-list manager with Markdown support and Nextcloud / ownCloud integration.
A new API for podcast synchronization.
The Open Podcast API is an initiative aiming to provide a feature-complete synchronization API specification for podcast (web) apps and user-focused servers.