Java settings
In this page you can set the global Java settings.
Memory
Java memory settings.
NOTE: MORE RAM ALLOCATED DOESN'T MEAN BETTER PERFORMANCE! In fact, in most use cases (except you're playing big modpacks) 4GB of ram allocated should be more than enough
Java Runtime
This is where the settings for the Java runtime live, like the location of the runtime and any Java arguments to use.
For information about how to get a correct Java version, see: Installing Java.
Auto-detect will check your computer for all java versions and show you a list of them, the best one on top.
Test can be used to test the selected Java runtime along with your memory settings and JVM arguments without starting the game.
Skip java compatibility checks skips java compatibility checks at game launch
Autodetect Java version sets the correct java version at game launch(only looks at installed java and will change the java path in instance settings)
Auto-download Mojang Java will automatically download needed java(works only when auto-detect is on)
Java Management
This is where you can download and remove the java that were installed by Prism Launcher.
Pages in Help pages:
- APIs
- ATLauncher
- Custom Commands
- Environment variables
- FTB
- CurseForge
- Version
- Instance Copy
- Java Settings
- Java Wizard
- Language Settings
- Launcher Settings
- Mods
- Minecraft Settings
- Miscellaneous
- Mod Downloader
- Modrinth
- Notes
- Proxy Settings
- Screenshots
- Technic
- External Tools
- Vanilla
- Worlds
- Import
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By submitting a comment, you agree to uphold the Prism Launcher Code of Conduct.
✅ What user-contributed comments are for
- Share additional information relevant to the article.
- Mention a workaround for a common issue.
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🚫 What user-contributed comments are not for
- Do not point out something in the documentation being incorrect or outdated.
- Instead, open an issue on the prismlauncher.org issue tracker. If you can, please open a pull request to improve the documentation.
- You can use the Edit button at the bottom of each documentation page for this purpose.
- Do not ask support questions. Please use other community platforms instead.
- Do not submit bug reports. Please use the main Prism Launcher repository's issue tracker instead.
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Comments not following the above rules will be removed.
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Launcher contributors may occasionally go through the comments and may incorporate information from them in the documentation. By submitting a comment, you accept that it may be incorporated in unmodified or modified form in the launcher and/or documentation, subject to the GPL-3.0 license for the launcher and AGPL-3.0 license for the documentation.