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Ranking

Best Open-Source Backup & Sync Tools

Ranked by GitHub stars Updated a recent run 10 open-source picks

Open-source backup and file-sync clients to keep your files safe, ranked by popularity with downloads.

#AppStars
1restic35.0k
2duplicati14.7k
3kopia13.6k
4borg13.5k
5velero10.1k
6Android-DataBackup7.0k
7ludusavi5.9k
8imessage-exporter5.4k
9aliyunpan5.1k
10backup4.9k
1

restic

Backup & Sync
35.0k BSD-2-Clausev0.19.1

Restic is a backup tool designed for speed, security, and efficiency. It supports encrypted backups and deduplication to optimize storage usage.

Runs on
Windows
View & download
2

duplicati

Backup & Sync
14.7k NOASSERTIONv2.3.0.4_stable_2026-07-09

Duplicati creates encrypted backups stored in cloud services. It supports incremental backups and file versioning. The software is designed for secure offsite data protection.

Runs on
WindowsmacOSLinux
View & download
3

kopia

Backup & Sync
13.6k Apache-2.0v0.23.1

Kopia is a cross-platform backup tool for Windows, macOS, and Linux that supports fast, incremental backups with client-side encryption, compression, and data deduplication. It includes both a command-line interface and a graphical user interface for managing backups.

Runs on
WindowsmacOSLinux
View & download
4

borg

Backup & Sync
13.5k NOASSERTION1.4.4

Borg is a deduplicating archiver that supports compression and authenticated encryption for secure data backups. It efficiently reduces storage needs by eliminating duplicate data segments.

Runs on
macOSLinux
View & download
5

velero

Backup & Sync
10.1k Apache-2.0v1.18.2

Velero backs up and migrates Kubernetes applications along with their persistent volumes. It helps manage disaster recovery and cluster resource transfers.

Runs on
WindowsmacOSLinux
View & download
6

Android-DataBackup

Backup & Sync
7.0k GPL-3.02.0.12

Android-DataBackup is a backup tool for Android devices running version 7.0 or later. It helps users create backups of their device data.

Runs on
Android
View & download
7

ludusavi

Backup & Sync
5.9k MITv0.31.0

Ludusavi is a backup tool designed for PC game save files. It helps users preserve their game progress by creating and managing backups.

Runs on
WindowsmacOSLinux
View & download
8

imessage-exporter

Backup & Sync
5.4k GPL-3.04.2.0

This tool exports iMessage data and provides diagnostic functions for troubleshooting. It helps users back up their iMessage conversations and analyze message-related issues.

Runs on
WindowsmacOS
View & download
9

aliyunpan

Backup & Sync
5.1k Apache-2.0v0.4.0

Aliyunpan is a command-line client for Aliyun cloud storage with JavaScript plugin support. It offers synchronization and backup capabilities.

Runs on
WindowsmacOSLinuxAndroid
View & download
10

backup

Backup & Sync
4.9k MIT4.3.0

Backup is a tool for performing full stack backup operations on UNIX-like systems. It simplifies backup tasks with a straightforward approach.

Runs on
Linux
View & download

Frequently asked questions

What is the top pick in “Best Open-Source Backup & Sync Tools”?
restic currently leads this list, which is ordered by GitHub stars among the 10 open-source options we track.
Are these apps free?
Yes. Every app on this list is free and open-source. Download links point to each project's official release.
How is this ranking decided?
The order reflects GitHub stars, a public measure of popularity. Data is pulled from official sources and last refreshed on a recent run. We don't accept payment for placement.

How we rank:entries are ordered by GitHub stars, a public popularity signal. Versions, licenses and platform support are read from official release feeds. We don't accept payment for inclusion or position. Supported platforms reflect the latest release (Windows, Linux, macOS, Android).

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