Double Commander is a free cross platform open source file manager with two panels side by side. You can easily explore, download and edit any file on your Synology NAS. In this step by step guide I will show you how to install Double Commander on your Synology NAS using Docker.
STEP 1
Install Docker via Synology “Package Center”.

STEP 2
Go to File Station and open the docker folder. Inside the docker folder, create one new folder and name it doublecommander. Follow the instructions in the image below.
Note: Be careful to enter only lowercase, not uppercase letters.

STEP 3
Now create two new folders inside the doublecommander folder that you created at STEP 3. Name one “config” and the other “data“. Follow the instructions in the image below.
Note: Be careful enter only lowercase, not uppercase letters.

STEP 4
Go to Control Panel / Task Scheduler / Create / Scheduled Task / User-defined script. Follow the instructions in the image below.

STEP 5
Once you click on User-defined script a new window will open. Follow the instructions below:
- General: In the Task field type in “Install Double Commander“. Uncheck “Enabled” option. Select root User.
- Schedule: Select Run on the following date then select “Do not repeat“.
- Task Settings: Check “Send run details by email“, add your email then copy paste the code below in the Run command area. After that click OK.
docker run -d --name=doublecommander \ -p 3278:3000 \ -v /volume1/docker/doublecommander/config:/config \ -v /volume1/docker/doublecommander/data:/data \ --restart always \ ghcr.io/linuxserver/doublecommander

STEP 6
After you click OK on STEP 6 a new warning pop up window will open. Click OK.

STEP 7
After you click OK on STEP 7, select your “Install Double Commander ” Task then click the “Run” tab. You will be asked to run Install Double Commander – click Yes. Follow the instructions in the image below.

STEP 8
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://Synology-ip-address:3278

You can easily explore all folders and files on your Synology NAS.
