CrashPatch (Crash Preventer)
by Polyfrost
With CrashPatch installed, a game crash no longer closes the client outright: the mod keeps the window open and shows what went wrong, so the player can return to play.
What it does
CrashPatch is a client-side crash handler published under a custom license, and it is not open source. Only the client needs it, and the server can run without it. It requires Fabric Language Kotlin, Not Enough Crashes and OneConfig. OneConfig is bundled inside the mod, so the other two must be added separately on Fabric. Files exist for Fabric, Forge and Ornithe across 12 release versions, with builds covering 1.8.9 – 26.3.
When a crash happens, the mod opens a screen that names the mod suspected to be responsible. A single button brings the player back to the game without restarting the launcher. Disconnect screens can also display a fix when the reason matches one that CrashPatch recognizes. The project's source code and issue tracker are public, which allows bug reports to be filed against the mod directly.
Key features
Suspected mod report
The crash screen names the mod that is most likely behind the failure, which narrows down where to look.
Return to the game
One button resumes play after a crash, so the client does not have to be relaunched from the start.
Fixes on disconnect
Disconnect screens show a suggested fix when the disconnect reason is one CrashPatch knows about.
Gallery
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x6 of 6 versions with builds
1.8.x1 of 1 version with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 3
Use cases
Modded play with many add-ons
Large modpacks with many mods can fail in ways that are hard to trace. The crash screen points to the likely cause without a manual log search.
Long sessions
Players who stay in a world for hours can keep going after a crash instead of losing the session.
Who it’s for: Players who run modded clients and want crashes to leave the game open, with a visible hint of what failed.
Questions
Does CrashPatch need Fabric Language Kotlin?
Does the server need CrashPatch?
Which version should be used for 26.3?
In the catalog
CrashPatch (Crash Preventer) is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Polyfrost
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What the author says
CrashPatch stops a crash from closing your game. You get a screen that tells you which mod probably caused it and how to fix it, and most of the time you can just keep playing. If the game crashes while it is still starting up there's nothing to go back to, but you still get the same screen with the cause and the…
Official listing
- Modrinth page
- modrinth.com/mod/crashpatch
- Owner
- Polyfrost
- Published
- 2022-11-16
- Updated on Modrinth
- 2026-10-14
- Facts verified
- 2026-10-15