Dev tools · alternatives · 2026

24 alternatives to Corso
Free, secure, open-source backup for Microsoft 365
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Corso launched in 2023; newer entries below may have overtaken it.
- 1

Free, Secure, and Open-Source Backup for Microsoft 365 - alcionai/corso
2023 · github.com · its alternatives →
- 2
Plakar▲288It’s still young, but they are shipping fast, and it's open source. Anyone else playing with it?
2025 · plakar.io · its alternatives →
- 3

Creator here. I was looking for something as simple as Backblaze Personal [1] but privacy focused and open source. This is my attempt to build that. Uses PyQt6 [2] for the GUI and Pyinstaller [3] for creating the platform specific binaries. The backup engine under the hood is Restic [4]. The server code is written in Laravel [5]. All the code is on GitHub [6]. I actually really like Backblaze (even use B2 for this offering behind the scenes) so this isn't meant to throw shade their way. Just wanted a private open source alternative. Something like Bitwarden but for backups. [1]…
2022 · blobbackup.com · its alternatives →
- 4

- 5

nFreezer is an encrypted-at-rest backup tool. Contribute to josephernest/nfreezer development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 6

Immutable cloud storage with multi-cloud redundancy. Zero-knowledge encryption, unlimited devices. Built on restic — no vendor lock-in. From $5/month.
2018 · relicabackup.com · its alternatives →
- 7
Drivebase▲98Unified file manager for all your cloud storage with E2EE
Feb 2026 · drivebase.io · its alternatives →
- 8

- 9

- 10

- 11

- 12
KeePassX▲83A cross-platform app for secure personal data management
2017 · keepassx.org · its alternatives →
- 13
ReAccess▲70The alternative to PowerApps, QuickBase, and Caspio
2022 · reaccess.app · its alternatives →
- 14

A simple command line backup solution using rsync. Contribute to PenguinSnail/Quick-Back development by creating an account on GitHub.
2016 · github.com · its alternatives →
- 15

Hi Hacker News! Shahar and Tal from Keep here. We're thrilled to announce that we're open-sourcing our alerting CLI tool, Keep (https://github.com/keephq/keep). Designed by developers for developers, Keep streamlines and simplifies alerting, making it a first-class citizen within the development process. Think of Keep as Prometheus Alertmanager but for all observability tools, with a simple and intuitive (GitHub actions-like) syntax. We believe that alerting has historically been neglected in existing monitoring platforms, leading to subpar alerting practices. With Keep,…
2023 · github.com · its alternatives →
- 16

A simple paper backup tool for GnuPG or SSH keys. Contribute to ooguz/papyrus development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 17FS
2012 · sneakerbackup.com · its alternatives →
- 18

- 19

BackupRocket The dead-simple backup tool you'll actually use
2025 · solaireguild.gumroad.com · its alternatives →
- 20

Hi HN, I built Cloudstic (https://github.com/Cloudstic/cli), an open-source Go CLI that creates encrypted, deduplicated, point-in-time backups of your Google Drive, OneDrive, and local files. The Problem Google Drive and OneDrive are sync tools, not backup tools. If you accidentally delete a folder, it’s gone everywhere. If ransomware encrypts your local files, the "mistake" propagates to the cloud immediately. There is no easy way to say: "Restore my entire Drive exactly as it looked on January 15th." Why not just use Restic or Borg? I’m a huge fan of Restic, and…
Mar 2026 · github.com · its alternatives →
- 21PO
I’m working on Portabase, a self-hosted, open-source tool for managing database backups and restores. It currently supports PostgreSQL, MySQL, and MariaDB, with MongoDB coming soon. It uses an agent-based architecture with a central server and lightweight agents, enabling deployment at the edge and operation across multiple networks. Website: https://portabase.io GitHub: https://github.com/Portabase/portabase Discord (newly created): https://discord.gg/Wgv7xZ8fWJ Main features: - Scheduled logical backups with multiple retention strategies…
Jan 2026 · its alternatives →
- 22
Tunnex▲4Encrypted Postgres & Mongo backups, from your desktop.
May 2026 · tunnex.biz · its alternatives →
- 23

Backup Office 365 Mailboxes into Multiple Platforms
2023 · forensiksoft.com · its alternatives →
- 24

Also compare
- Free, open-source tool for backing up Microsoft 365 Data – Corso alternatives
- Plakar alternatives
- I made a privacy-first minimalist Backblaze alternatives
- DBacked alternatives
- NFreezer – Encrypted-at-rest remote backup tool alternatives
- Relica – Cross-platform local, remote, and multi-cloud file backups alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →