Docs/Free Java hosting
Free Java hosting
Free Java hosting on HostKB — deploy Spring Boot and JVM apps from Git with builds, HTTPS, and logs.
Free Java hosting
Free Java hosting and deploy from Git on HostKB — builds, HTTPS, and logs included.
- Free application hosting so you can deploy Java without renting a VPS first
- Suitable for Spring Boot JARs and other JVM HTTP services
- Build with Maven or Gradle inside your Dockerfile, then run the JAR
- Git-based deployments with builds, HTTPS, custom domains, and real-time logs
- Optional auto-deploy on push for continuous deployment
How to deploy Java on HostKB
Free deployment from Git: connect repo → build → deploy → HTTPS URL.
- Create a free HostKB account and open a project.
- Create an application with source type Git Repository (deploy from GitHub guide).
- Add a Dockerfile (or use Railpack when available) so the platform can build your Java app.
- Set environment variables, then click Build and Deploy.
- Open your app URL and attach a custom domain when you go live.
Java Dockerfile tip
Package a fat JAR in the image and start it with java -jar. Ensure the process listens on 0.0.0.0 and EXPOSE the HTTP port.
Why use HostKB for Java
- One place to host and deploy — free to start, grow when you need
- Works for APIs, web apps, and containerized services — not only static sites
- Scale later with app sizes without changing your Git workflow
More free hosting guides
Same deploy workflow for other languages and frameworks.
Related guides
- Getting started — Create projects and apps, set environment variables, then build and deploy from the UI.
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- Deploy from GitHub — Connect GitHub, pick a repository and branch, then build and deploy your app.
- Sample apps (download) — Download Node.js, .NET, or Python sample ZIPs, push to your Git repo, and try a free deploy.
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- Free Next.js hosting — Deploy Next.js apps from Git with optional auto-deploy on push.
- Free Vue.js hosting — Build and deploy Vue apps from Git with HTTPS.
- Free PHP hosting — Deploy PHP apps from Git with Docker.
- Free Docker hosting — Run any containerized app — bring your Dockerfile and deploy from Git.