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Introduction

Welcome to javm​

javm is a fast, cross-platform Java Version Manager designed to be simple, scriptable, and predictable.

While inspired by tools like Jabba, SDKMAN, and jenv, javm is not a drop-in replacement. It's a new take on Java version management with a clean CLI, zero runtime dependencies, and native support for Windows, Linux, and macOS.

Why javm?​

  • Native support for Windows, Linux, and macOS
    No Bash emulation layers. Works out of the box.

  • Fast and script-friendly
    Install and use JDKs in CI or local shells without global state or side effects.

  • Reproducible environments
    Pin exact JDK versions. Build predictable and portable setups.

  • Zero runtime dependencies
    The core is a single static binary. No JVM or SDK required to run it.

Quick Example​

# List available JDKs
javm ls-remote

# Install one
javm install 17

# Use it in your current shell
javm use 17

Current Status​

javm is in active development and is not yet considered stable for production use. Expect the CLI and config behavior to evolve as features mature.