Jaconir

Free Docker Command & Compose Helper Online | Visual Builder | Jaconir Tools

Use our free Docker Command Helper to visually build `docker run` commands and `docker-compose.yml` files. Fast, secure, and no login required, it's the perfect tool for developers and students learning to work with Docker containers.

Docker Run Builder
Fill in the options to construct your `docker run` command for a single container.
Generated `docker run` Command
docker run -d nginx:latest

Features of the Docker Helper

`docker run` Builder

Visually add flags, port mappings, volumes, and environment variables to generate complex `run` commands easily.

`docker-compose` Generator

Define multiple services for your application stack and get a perfectly formatted `docker-compose.yml` file.

Instant Code Output

The generated command or YAML file updates in real-time as you make changes, with one-click copying.

How to Use the Docker Helper

This tool demystifies Docker commands by providing a user-friendly interface for common configurations.

For `docker run` (Single Container)

  1. Enter the name of the Docker image you want to run (e.g., `node:18-alpine`).
  2. Give your container a name for easy reference.
  3. Toggle flags like `-d` to run it in the background.
  4. Add port mappings to expose your application (e.g., map host port `3000` to container port `3000`).
  5. Add volume mappings to persist data or sync code.
  6. Copy the final command from the "Generated Command" box.

For `docker-compose` (Multiple Containers)

  1. Click "Add Service" to define each part of your application (e.g., `webapp`, `database`).
  2. For each service, specify the image, container name, and restart policy.
  3. Add port, volume, and environment variable mappings just like with `docker run`.
  4. The `docker-compose.yml` file on the right will update live.
  5. Copy the generated YAML and save it as `docker-compose.yml` in your project. Run `docker-compose up` to start your entire stack.

Need to generate a consistent branch name for your new feature?

Try our Git Branch Name Generator

Why Use This Tool?

Simplify Complex Commands

Docker commands can get very long and complex. This tool acts as a visual guide, preventing syntax errors and saving you from constantly checking the documentation.

Learn Docker Faster

By seeing how the visual inputs translate directly into `run` commands or `compose` files, beginners can more easily understand Docker's core concepts like port and volume mapping.

Enforce Best Practices

The tool encourages best practices like naming containers and using specific restart policies, leading to more manageable and robust Docker setups.

Frequently Asked Questions