Open Source Go Backup Software

Kopia is a fast, secure, and open-source backup and restore tool designed to help users and administrators protect important data by creating encrypted, deduplicated snapshots and storing them in a range of local, network, or cloud storage locations. Instead of imaging entire machines, it focuses on backing up selected files and directories with efficient incremental backups that only transfer changed data, which reduces storage and bandwidth needs. Kopia has both a command-line interface for automation and scripting as well as a graphical UI for interactive use, making it suitable for advanced users and those who prefer visual tools. Its architecture supports end-to-end encryption, optional compression, and deduplication, so multiple backups can share data efficiently, and repositories can be stored securely even in untrusted locations.

Plakar is an open-source backup solution designed to protect files, application data, and contextual metadata in a scalable way. It goes beyond basic file copying by storing data and its surrounding context inside Kloset, an immutable open-source data store. The project focuses on making backups easy to start while still supporting advanced data protection scenarios. It emphasizes security through end-to-end encryption for both backup data and metadata. Plakar is also built for reliability, using immutable storage to reduce the risk of accidental modification or corruption. Its main value is giving users and organizations a practical backup system that combines simple operation, strong protection, and support for large datasets with limited memory usage.

Duplicacy is an open-source cloud backup tool designed to protect files through efficient incremental backups and deduplicated storage. It uses a lock-free architecture that allows multiple computers to back up to the same storage destination simultaneously. Its cross-computer deduplication reduces redundant data while preserving independent backup histories. The software divides files into content-addressed chunks without relying on a centralized chunk database. It supports local storage, SFTP, Amazon S3, Backblaze B2, Google Drive, and other cloud providers. Duplicacy also provides encryption, snapshot restoration, backup verification, and retention management. Available through a command-line tool and a separate web interface, it supports Windows, macOS, and Linux backup workflows.

Postgresus is a self-hosted database backup tool centered on PostgreSQL, built for people who want a practical UI to configure, schedule, and verify backups without living in cron files and shell scripts. It’s designed to manage multiple databases from one place, run automated backups on a schedule, and keep you informed when jobs succeed or fail so you notice problems before you need a restore. The project emphasizes flexible storage destinations, letting you keep backups locally or push them to external/object storage providers depending on your infrastructure and retention needs. It also leans into “ops-friendly” deployment, commonly running in containers and aiming for a straightforward setup flow so small teams can adopt it quickly. As the project evolved, it broadened beyond a single-database focus toward a more general backup-management experience, including better organization, access control patterns, and operational visibility.

BackupZit is free, open-source backup software that you run on your own server. One web console manages agents on Windows and Linux machines and backs up files, whole disks (bare-metal recovery), Proxmox VE, VMware ESXi/vCenter and Hyper-V virtual machines without agents inside the guests, SQL Server, PostgreSQL and MySQL/MariaDB databases with point-in-time restore, NAS shares and Microsoft 365 (Exchange Online, OneDrive, SharePoint). Backups are deduplicated, compressed and encrypted (AES-256) before they leave the machine and can go to SFTP, S3-compatible storage, Azure Blob, SMB shares, USB disks or a write-once hardened repository. Immutable copies, backup copy jobs for 3-2-1, automatic restore tests and instant recovery of VMs are included. No cloud service, nothing exposed to the internet. The console is available in 14 languages. Licensed under the GNU AGPLv3; commercial support is offered by MaxZit.

pgBackWeb is a web-based interface for managing PostgreSQL backups created with pgBackRest. It allows users to monitor, configure, and schedule backups through a visual dashboard. Ideal for DBAs and teams needing centralized backup control, pgBackWeb simplifies PostgreSQL backup operations in multi-server environments.

A complete Kubernetes native disaster recovery solution for backup and restore your volumes and databases in Kubernetes on any public and private clouds. Backup your data in Kubernetes native way. Stash uses Custom Resource Definition (CRD) to specify targets and behaviors of the backup and restore process. Schedule a backup for your workloads in the same way you deployed them into Kubernetes. Back up your Kubernetes volumes mounted in a workload. Stash supports Deployment, DaemonSet, StatefulSet, ReplicaSet, ReplicationController, OpenShift DeploymentConfig etc. You can also backup stand-alone PVC with "ReadWriteMany" access mode. Back up your databases deployed in Kubernetes. Stash supports backup of MariaDB, Redis, PostgreSQL, MySQL, MongoDB, Elasticsearch and Percona XtraDB, Etcd databases. It seemingly integrates with KubeDB. It is now a recommended method to backup up KubeDB-supported databases.

Backup and migrate Kubernetes resources and persistent volumes. Velero is an open source tool to safely backup and restore, perform disaster recovery, and migrate Kubernetes cluster resources and persistent volumes. Reduces time to recovery in case of infrastructure loss, data corruption, and/or service outages. Enables cluster portability by easily migrating Kubernetes resources from one cluster to another​. Offers key data protection features such as scheduled backups, retention schedules, and pre or post-backup hooks for custom actions. Backup your Kubernetes resources and volumes for an entire cluster, or part of a cluster by using namespaces or label selectors. Set schedules to automatically kickoff backups at recurring intervals. Configure pre and post-backup hooks to perform custom operations before and after Velero backups.

zrepl is a replication tool for ZFS, providing powerful features for managing backups and synchronizations. It is tailored to handle ZFS snapshot management across multiple systems.