Docker hosting platforms compared: 2026 guide
Where to host Docker containers in 2026, comparing free tiers, pricing, and features.
Why the host matters
Most applications ship as Docker containers now. Running them in production takes a host that handles builds, networking, scaling, and monitoring, and the major options handle those differently.
Comparison table
| Platform | Free tier | Custom Dockerfile | Auto-detect | Pricing model |
|---|---|---|---|---|
| Deplexo | Always-on | Yes | Yes | Fixed plans |
| Render | Sleeps | Yes | Yes | Per service |
| Railway | $1/mo credit | Yes | Yes (Railpack) | Usage-based |
| Fly.io | Trial only | Yes (converts to microVM) | No | Usage-based |
| Koyeb | Scale-to-zero | Yes | Yes | Usage-based |
| DigitalOcean | None | Yes | Yes | Per service |
| AWS ECS | Free tier (limited) | Yes | No | Usage-based |
Deplexo
Managed container hosting. Deplexo can detect your framework, or you can bring your own Dockerfile. Containers get a read-only root filesystem and restricted privileges by default. Apps on the free tier stay on.
Render
Render supports Docker and uses Blueprint YAML for configuration. Its free tier sleeps after 15 minutes of inactivity. It offers managed Postgres and Redis, and paid plans start at $7/mo per service.
Railway
Railway uses Railpack to auto-detect projects and also has full Docker support. Pricing is usage-based, with a one-time $5 trial credit, then $1/month on the free plan. Templates for common stacks make setup quick.
Fly.io
Fly.io runs Firecracker microVMs and converts your Dockerfile into a microVM image. Apps deploy to edge locations in multiple regions. No free tier; it's pay-as-you-go, with a short trial for new users.
Koyeb
Koyeb is Docker-native and deploys from either a Dockerfile or buildpacks. The free tier scales to zero after 1 hour of inactivity. Acquired by Mistral AI in February 2026.
When to use what
- Simple deploys on a free tier that stays on: Deplexo
- You need managed databases: Render
- Global distribution: Fly.io
- Full control over Docker: your own VPS running Docker
See the Deplexo Docker deploy guide for step-by-step instructions.