Orveta

Docker Compose Formatter & Inspector

Developer
New

Catch deprecated syntax, bad indentation, and misconfigured services.

docker-compose.yml

Paste your Compose file — checked as you type.

Inspection

Structure, deprecated syntax, and indentation checks.

No errors
Services (3)
web
api
db

Top-level "version: "3.8"" is deprecated in the Compose Specification — it can be safely removed. Modern Compose infers the schema automatically.

Service "web" uses the legacy "links" key — on modern Compose, a shared user-defined network usually replaces it.

No blocking errors, but 1 thing worth cleaning up.

Cleaned YAML

version: "3.8"
services:
  web:
    build: .
    ports:
      - "3000:3000"
    environment:
      NODE_ENV: production
    depends_on:
      - api
    links:
      - api
  api:
    image: node:20-alpine
    working_dir: /app
    volumes:
      - ./api:/app
    environment:
      DATABASE_URL: postgres://user:pass@db:5432/app
  db:
    image: postgres:16-alpine
    environment:
      POSTGRES_PASSWORD: pass
    volumes:
      - db-data:/var/lib/postgresql/data
volumes:
  db-data: null

About this tool

Paste a docker-compose.yml file and get it checked for common problems — deprecated top-level version keys, tabs where YAML needs spaces, inconsistent indentation, services missing image or build, legacy links usage — plus a cleaned, re-indented copy of the file.

How to use Docker Compose Formatter & Inspector

  1. 1

    Paste your docker-compose.yml contents into the input box.

  2. 2

    Review the issues list — errors block Compose from running, warnings and info items are worth a look.

  3. 3

    Copy the cleaned, consistently indented YAML from the output box.

Frequently asked questions