Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it’s transmitted over the Internet. In this step by step guide I will show you how to install Syncthing on your UGREEN NAS using Docker & Portainer.

💡Note: This guide works perfectly with the latest Syncthing v1.29.6 release.

💡Note: Check out my guide on how to Install Syncthing on Your Synology NAS.

• STEP 1

Please Support My work by Making a Donation.

• STEP 2

⚠️Mandatory Add Read & Write Permissions to the Docker Folder. If you have already added the Read and Write Permissions to the Docker Folder, skip this STEP.

• STEP 3

⚠️Mandatory: Update your UGREEN NAS Firmware to the latest version. Go to Control Panel / Update and update your NAS with the latest Firmware.

• STEP 4

⚠️Mandatory: Uninstall the Sync & Backup app in App Center. Follow the instructions in the image below.

• STEP 5

Install Portainer using my step by step guide. If you already have Portainer installed on your UGREEN NAS, skip this STEP. Attention: Make sure you have installed the latest Portainer version.

• STEP 6

Go to Files and open the docker folder. Inside the docker folder, create one new folder and name it syncthing. Follow the instructions in the image below.
Note: Be careful to enter only lowercase, not uppercase letters.

• STEP 7

Now create three new folders inside the syncthing folder that you have previously created at STEP 6 and name them config, data1, data2. Follow the instructions in the image below.
Note: Be careful to enter only lowercase, not uppercase letters.

• STEP 8

Log into Portainer using your username and password. On the left sidebar in Portainer, click on Stacks then + Add stack. Follow the instructions in the image below.

• STEP 9

In the Name field type in syncthing. Follow the instructions in the image below.

Note: Copy Paste the code below in the Portainer Stacks Web editor.

services:
  syncthing:
    image: ghcr.io/linuxserver/syncthing:latest
    container_name: Syncthing
    healthcheck:
     test: curl -f http://localhost:8384/ || exit 1
    restart: on-failure:5
    security_opt:
      - no-new-privileges:true
    environment:
      - PUID=1026
      - PGID=100
      - TZ=Europe/Bucharest
    volumes:
      - /volume1/docker/syncthing/config:/config:rw
      - /volume1/docker/syncthing/data1:/data1:rw
      - /volume1/docker/syncthing/data2:/data2:rw
    ports:
      - 8384:8384
      - 22000:22000/tcp
      - 22000:22000/udp
      - 21027:21027/udp

Note: Before you paste the code above in the Web editor area below, change the value numbers for PUID and PGID with your own values. (Follow my step by step guide on how to do this.)
Note: Before you paste the code above in the Web editor area below, change the value for TZ. (Select your current Time Zone from this list.)
Note: If you want, you can change the following line /volume1/docker/syncthing/data1 with the path Location of your data folder on your UGREEN NAS. Also, remember to change :/data1 with the same folder name of your data folder name.
Note: If you want, you can change the following line /volume1/docker/syncthing/data2 with the path Location of another data folder on your UGREEN NAS. Also, remember to change :/data2 with the same folder name of your data folder name.

• STEP 10

Scroll down on the page until you see a button called Deploy the stack. Click on it. Follow the instructions in the image below. The installation process can take up to a few minutes. It will depend on your Internet speed connection.

• STEP 11

If everything goes right, you will see this message at the top right of your screen: “Success Stack successfully deployed“.

• STEP 12

🟢Please Support My work by Making a Donation. Almost 99,9% of the people that install something using my guides forget to support my work, or just ignore STEP 1. I’ve been very honest about this aspect of my work since the beginning: I don’t run any ADS, I don’t require subscriptions, paid or otherwise, I don’t collect IPs, emails, and I don’t have any referral links from Amazon or other merchants. I also don’t have any POP-UPs or COOKIES. I have repeatedly been told over the years how much I have contributed to the community. It’s something I love doing and have been honest about my passion since the beginning. But I also Need The Community to Support me Back to be able to continue doing this work.

• STEP 13

The installation process can take up to a few seconds/minutes. It will depend on your Internet speed connection. Now open your browser and type in http://ugreen-ip-address:8384 Click No to disallow anonymous usage reporting. Follow the instructions in the image below.

• STEP 14

Click Settings. Follow the instructions in the image below.

• STEP 15

Click the GUI tab. Type in your own Username and Password. Select Dark for Dark mode. Click Save. Follow the instructions in the image below.

• STEP 16

You will be prompted to log in using your Username and Password that you have previously chosen at STEP 15. Click Log In. Follow the instructions in the image below.

• STEP 17

Click + Add Folder. Follow the instructions in the image below.

• STEP 18

In the Folder label area, type in your folder name. In the folder ID area, type in your folder name. In the Folder Path area, type in your folder name with a slash / in front. Click Save. Follow the instructions in the image below.

• STEP 19

At the top right of the page, click Actions then Show ID. Follow the instructions in the image below.

• STEP 20

Your device identification at a glance!

Enjoy Syncthing on your UGREEN NAS!

🆘TROUBLESHOOTING

Note: If you want to run the Syncthing container over HTTPS, check out How to Run Docker Containers Over HTTPS on Your UGREEN NAS.

This post was updated on Wednesday / May 28th, 2025 at 4:43 PM