Docker
Heroku
| Feature | Docker | Heroku |
|---|---|---|
| Pricing | Free / from $5/mo | From $5/mo |
| Free Plan | ✓ Yes | ✗ No |
| Rating | 4.6 / 5 | 4 / 5 |
| Best For | developers, devops-engineers, microservices-teams, ci-cd-pipelines | startups, prototyping, small-teams, ruby-python-node-developers |
| Founded | 2013 | 2007 |
| Containerization | ✓ | ✗ |
| Docker Hub | ✓ | ✗ |
| Docker Compose | ✓ | ✗ |
| Buildkit | ✓ | ✗ |
| Multi Platform Builds | ✓ | ✗ |
| Volume Management | ✓ | ✗ |
| Networking | ✓ | ✗ |
| Docker Scout | ✓ | ✗ |
| Git Deploy | ✗ | ✓ |
| Managed Postgres | ✗ | ✓ |
| Managed Redis | ✗ | ✓ |
| Add Ons | ✗ | ✓ |
| Review Apps | ✗ | ✓ |
| Pipelines | ✗ | ✓ |
| Auto Scaling | ✗ | ✓ |
✓ Docker Pros
- Industry standard for containerization
- Consistent development environments across teams
- Massive ecosystem with Docker Hub registry
- Docker Compose simplifies multi-container apps
- Excellent documentation and community
✗ Docker Cons
- Docker Desktop licensing changes upset some users
- Resource-intensive on macOS and Windows
- Security requires careful container configuration
✓ Heroku Pros
- Simplest deployment experience (git push to deploy)
- Extensive add-on marketplace for databases and services
- Great for prototyping and MVPs
- Managed Postgres and Redis included
✗ Heroku Cons
- Removed free tier in 2022
- Expensive for production workloads at scale
- Limited infrastructure customization
The Verdict
Docker is built for developers and devops engineers, with a focus on containerization and docker-hub. Heroku targets startups and prototyping and leads with git-deploy and managed-postgres.
Both tools come in at similar price points ($5/mo for Docker, $5/mo for Heroku), so pricing won't make the decision for you.
Docker has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. Heroku requires a paid subscription from day one.
Docker edges out on user ratings (4.6 vs 4). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.
Feature-wise, Docker offers broader built-in capabilities (8 features vs 7), while Heroku takes a more focused approach — which can mean a simpler, faster onboarding experience.
Bottom line: Docker has a slight overall edge — but if simplest deployment experience (git push to deploy) matters most to you, Heroku may still be the right call.