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Storagedocker-ready1-click-deployOpen-Core🟡 Standard · ~1GB💾 Recommended storage: 15GB

Seafile: Open-Core alternative to Dropbox in 2026

Seafile syncs and shares files with optional end-to-end encryption and efficient version control, offering very solid performance as an alternative to Dropbox.

Core is open source, but advanced features or enterprise support may be behind a paid tier — check the license.

Alternative to Dropbox
License AGPL-3.015.3k starsWebsite GitHub Repository

Audit Snapshot

View notes →

  • License — Not verifiable on GitHub

  • GitHub — Active

  • Latest release — v9.0.22

  • Docker Compose — Partial

  • Production — Not production-tested by AltFreeStack

Seafile vs. Dropbox

Pros

  • Noticeably better sync performance with lots of files

Things to consider

  • Less modern interface than Nextcloud

Quick Docker installation guide

Copy this docker-compose.yml, adjust the example passwords and run docker compose up -d on your server. See the full step-by-step guide →

💡 Official SaaS or self-hosted with AltFreeStack?

  • On the official cloud: $15/mo per user on Dropbox.
  • On your own VPS: the core is free to self-host on your own server — no more monthly SaaS fee, though some advanced features stay behind a paid plan.
docker-compose.yml
version: "3.9"
services:
  seafile:
    image: seafileltd/seafile-mc:13.0.28
    restart: unless-stopped
    ports:
      - "80:80"
    environment:
      - DB_HOST=seafile-db
      - DB_ROOT_PASSWD=change-me-db-root-passwd # REQUIRED: generate a random secret before first run
    depends_on:
      - seafile-db
  seafile-db:
    image: mariadb:11
    restart: unless-stopped
    environment:
      - MYSQL_ROOT_PASSWORD=change-me-mysql-root-password # REQUIRED: generate a random secret before first run
    volumes:
      - seafile_db_data:/var/lib/mysql
volumes:
  seafile_db_data:

🚀 Deploy in 1 command

Recommended for beginners

Copy this single command and paste it into your freshly created VPS's console (Vultr, DigitalOcean...). It downloads the script, prints it to your screen so you can see exactly what it's about to do (never a blind direct pipe), and only then installs Docker if needed, writes the files with secrets already generated, and starts everything — no nano, no pasting code blocks.

curl -sSL ".../api/deploy?stack=seafile" -o deploy.sh && cat deploy.sh && bash deploy.sh
See what this script does →

This docker-compose corresponds to an actively maintained project — last commit 4 days ago.

This docker-compose not working for you? Report it on GitHub →

Technical profile

License
AGPL-3.0
Category
Storage
Replaces
Dropbox
Tech stack
CPythonMySQL

Under the hood

Database

MySQL

Language

C / Python

Platforms

Web · Desktop (Mac/Win/Linux) · Mobile (iOS/Android)

Key features

  • Optional end-to-end encryption per library
  • Space-efficient version control
  • Sync clients for every OS
💾 Backups in 3 steps (Day 2)

As long as the ./data folder (the "volume" mapped into the container) exists on your server, your data survives any restart or container update — that's the only thing you need to back up.

1. Create a compressed backup on the server

tar -czvf backup-$(date +%F).tar.gz ./data

2. Download it to your computer

From your computer's terminal (not your server's):

scp root@YOUR_IP:~/app/backup-*.tar.gz ./

3. Restore in case of emergency

tar -xzvf backup-file.tar.gz
🌐 Connect your domain with free SSL

Step 1 — Set up the DNS

In your domain registrar's dashboard (Cloudflare, Namecheap, GoDaddy...), create a record:

Type
A
Name/Host
@ (root domain) or a subdomain, e.g. app
Content/Value
Your server's public IP

Wait 5 to 15 minutes for the record to propagate across the internet.

Step 2 — Automatic reverse proxy with Caddy

One single file, no Nginx config or manual certificates — Caddy issues and renews Let's Encrypt HTTPS on its own.

Create a file called Caddyfile:

yourdomain.com {
    reverse_proxy localhost:80
}

Start Caddy with this command (pulls the image and runs it in the background):

docker run -d -p 80:80 -p 443:443 --name caddy --restart always -v $PWD/Caddyfile:/etc/caddy/Caddyfile -v caddy_data:/data caddy