# duplicati/duplicati

Store securely encrypted backups in the cloud!

Repository: https://github.com/duplicati/duplicati
Canonical: https://ross.abutalabs.com/products/duplicati
Language: C#
License: NOASSERTION
License Family: other
Topics: duplicati, backup, c-sharp, cloud-storage-services, webdav, sftp, encryption, trust-no-one-backup, tno-backup, cloud-backup, client-only-backup
Last push: 2026-08-26T21:35:48+00:00

## Health v2 (maintenance only)
Score: 93/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 80, longevity 100
- inputs: {"age_days": 4411, "days_push": 7, "days_rel": 55, "gap_med": 32, "n_releases_24m": 10}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 14939, forks 1063 (observed 2026-08-28T04:11:08.965740+00:00)

## What it is
Duplicati is a free, open-source backup client that stores encrypted, incremental, compressed backups on cloud storage services and remote file servers. It supports many backends including Amazon S3, Backblaze B2, Google Drive, OneDrive, SFTP, and WebDAV, with AES-256 client-side encryption.

## Use cases
- back up my files to cloud storage with encryption
- schedule automatic incremental backups of my computer
- encrypt backups before uploading so the provider can't read them
- back up to S3, Backblaze B2, or Google Drive
- restore old versions of files from a backup
- back up a Linux server to remote storage over SFTP

## When to choose
- you need client-side encrypted backups to a wide variety of cloud providers
- you want incremental, bandwidth-efficient backups with scheduling
- you need a cross-platform backup tool with both GUI and CLI

## When to avoid
- you need bare-metal or full disk-image disaster recovery backups
- you want a simple local-only backup without cloud storage
- you need real-time continuous file sync rather than scheduled backups

## Facets
- artifact type: application
- maturity: active
- function: backup, cryptography, compression, scheduling, file-system
- domain: security, cloud-computing, privacy, files, cross-platform
- platform: windows, cross-platform, cli
- tags: cloud-backup, incremental-backup, aes-256, client-side-encryption, s3, webdav, sftp, trust-no-one, backup, macos, linux, web-server

## Member repositories
- duplicati/duplicati (main) score 93

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:08.965740+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 2026-08-29T17:06:51.165615+00:00, confidence not recorded.
  - readme: https://github.com/duplicati/duplicati (fetched 2026-08-28T04:11:08.965740+00:00, sha 45afa65fcc6f)
- Data as of 2026-08-30T08:39:29.467469+00:00.