Which Java versions are supported?

Java 17 and 21 LTS with Eclipse Temurin. The version is detected from your pom.xml or build.gradle.

Can I use Kotlin with Spring Boot?

Yes - Kotlin projects are detected and compiled automatically, exactly like Java ones.

Do I need a Dockerfile?

No - we build and run the executable JAR for you. If your repo ships a Dockerfile instead, we build directly from it.

How does my app get its database credentials?

Attach PostgreSQL, MySQL, or Redis and the spring.datasource properties are set as environment variables automatically.

Does my Spring Boot app sleep on the free plan?

Idle apps on the Free plan scale to zero and wake on the next request. Pro and Team apps stay always-on.

Framework

Spring Boothosting.

Deploy Java or Kotlin Spring Boot apps. We detect pom.xml or build.gradle, build an executable JAR, and run it on the latest LTS JVMs.

Features

Maven & Gradle

We detect pom.xml or build.gradle, download dependencies, and build a production JAR automatically.

Java 17 & 21 LTS

Run on the latest LTS JVMs (Eclipse Temurin) with tuned GC settings. Kotlin fully supported alongside Java.

Git Push Deploy

Push to your repo and we build, test, package, and deploy your Spring Boot app with zero downtime.

Managed Databases

Add PostgreSQL, MySQL, or Redis with one click. Spring datasource properties set automatically.

How it works

01Run dock deployRun dock deploy in your project folder, or connect a GitHub repository.
02We build itWe detect Spring Boot from pom.xml · build.gradle, install dependencies and build an image.
03It goes liveYour app gets a container, free SSL and a live https://….dockhosting.cloud URL.

$ dock deploy→ Detecting framework… Spring Boot→ Found pom.xml · build.gradle→ Maven / Gradle build → executable JAR→ Building image→ Provisioning container + SSL✓ Live at https://my-app.dockhosting.cloud

Supported

Java 17
Java 21
Spring Boot 3
Maven
Gradle
Kotlin
PostgreSQL
MySQL
Redis

Specifications

Java versions: 17, 21 LTS (Eclipse Temurin)
Build tools: Maven 3.9+, Gradle 8.x
Spring Boot: 2.7.x, 3.x
Kotlin: Fully supported
Max memory: Up to 4 GB per app
Custom domains: 3 on Pro, 10 on Team - auto SSL

Overview

Updated 1 November 2026

Spring Boot apps carry more moving parts than a typical script: a build tool that resolves dependencies, a JVM that wants tuned memory settings, and usually a database, a cache, and a scheduler talking to each other. DockHosting reads pom.xml or build.gradle, runs your Maven or Gradle build, and ships the executable JAR - no hand-written Dockerfile, no Tomcat to install, no server to patch.

Configuration lands where Spring expects it. Attach a managed PostgreSQL or MySQL database and the connection properties are injected as environment variables; add Redis and Spring Cache or sessions work over the private network without exposing anything publicly. Scheduler tasks, Quartz jobs, and background workers run alongside the web server the same way queue workers do on other stacks.

Compared with a traditional VPS, you skip the whole provisioning ritual - installing a JDK, setting up a process supervisor, wiring TLS, and writing deployment scripts. Compared with shared hosting, you get a real JVM process with up to 4 GB of memory instead of a PHP-only plan that cannot run a Java app at all. The Free plan is enough to run a small Spring Boot service with one database; Hobby ($4/mo) keeps it always-on with your own domain.

Compare

Spring Boot ships a fat JAR with Tomcat embedded - no server install needed, but someone still has to run it. A VPS means maintaining JVMs and process supervisors yourself. DockHosting builds the JAR with your build tool and runs it on a managed JVM runtime.

Feature	DockHosting	Tomcat on a self-managed VPS
Build	Maven/Gradle detected, executable JAR built on deploy	Build locally or script CI, then deploy the artifact
Runtime	Managed container on Java 17/21 LTS, restart on crash	Your JVM, systemd units and monitoring
Java version	LTS picked from pom.xml/build.gradle	Whatever is installed on the server
HTTPS	Automatic Let's Encrypt	Manual or paid certificates
Database	Managed PostgreSQL/MySQL/Redis, credentials injected as spring.datasource vars	Install and back up your own stack
Cost	Flat $0 / $4 / $9 / $19	VPS + the hours to operate a Java server

The bottom lineSpring Boot was built to be deployed as a JAR; DockHosting just automates the boring part of running it - no Tomcat, no JDK setup, no deploy scripts.