About StackDeobfuscator
From ModrinthRemaps logged stacktraces to readable mappings
Stack Deobfuscator
> WARNING
> This mod is obsolete for all Minecraft versions newer than 1.21.11. It will still be maintained for older versions.
Discord: https://discord.gg/XSB7jn9
Web Version: https://stackdeobf.net/
See wiki for configuration
What does this mod do?
All errors displayed in the console and all crash reports will be remapped from unreadable production names (e.g. net.minecraft.class_310) to readable mapped names (e.g. net.minecraft.client.MinecraftClient).
This allows mod developers to more easily identify issues in a non-development environment, as the errors are instantly human-readable.
Comparison
Before
[23:13:08] [Render thread/ERROR]: Reported exception thrown!
net.minecraft.class_148: Manually triggered debug crash
at net.minecraft.class_309.method_1474(class_309.java:509) ~[client-intermediary.jar:?]
at net.minecraft.class_310.method_1574(class_310.java:1955) ~[client-intermediary.jar:?]
at net.minecraft.class_310.method_1523(class_310.java:1180) ~[client-intermediary.jar:?]
at net.minecraft.class_310.method_1514(class_310.java:801) ~[client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:237) ~[minecraft-1.19.4-client.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:462) ~[fabric-loader-0.14.18.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) ~[fabric-loader-0.14.18.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) ~[fabric-loader-0.14.18.jar:?]
at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:88) ~[NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.listen(EntryPoint.java:126) ~[NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.main(EntryPoint.java:71) ~[NewLaunch.jar:?]
Caused by: java.lang.Throwable: Manually triggered debug crash
at net.minecraft.class_309.method_1474(class_309.java:506) ~[client-intermediary.jar:?]
... 10 more
After (yarn/quilt mappings)
[23:11:25] [Render thread/ERROR]: Reported exception thrown!
net.minecraft.util.crash.CrashException: Manually triggered debug crash
at net.minecraft.client.Keyboard.pollDebugCrash(Keyboard.java:509) ~[client-intermediary.jar:?]
at net.minecraft.client.MinecraftClient.tick(MinecraftClient.java:1955) ~[client-intermediary.jar:?]
at net.minecraft.client.MinecraftClient.render(MinecraftClient.java:1180) ~[client-intermediary.jar:?]
at net.minecraft.client.MinecraftClient.run(MinecraftClient.java:801) ~[client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:237) ~[minecraft-1.19.4-client.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:462) ~[fabric-loader-0.14.18.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) ~[fabric-loader-0.14.18.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) ~[fabric-loader-0.14.18.jar:?]
at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:88) ~[NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.listen(EntryPoint.java:126) ~[NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.main(EntryPoint.java:71) ~[NewLaunch.jar:?]
Caused by: java.lang.Throwable: Manually triggered debug crash
at net.minecraft.client.Keyboard.pollDebugCrash(Keyboard.java:506) ~[client-intermediary.jar:?]
... 10 more
After (mojang mappings)
[23:04:12] [Render thread/ERROR]: Reported exception thrown!
net.minecraft.ReportedException: Manually triggered debug crash
at net.minecraft.client.KeyboardHandler.tick(KeyboardHandler.java:509) ~[client-intermediary.jar:?]
at net.minecraft.client.Minecraft.tick(Minecraft.java:1955) ~[client-intermediary.jar:?]
at net.minecraft.client.Minecraft.runTick(Minecraft.java:1180) ~[client-intermediary.jar:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:801) ~[client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:237) ~[minecraft-1.19.4-client.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:462) ~[fabric-loader-0.14.18.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) ~[fabric-loader-0.14.18.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) ~[fabric-loader-0.14.18.jar:?]
at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:88) ~[NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.listen(EntryPoint.java:126) ~[NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.main(EntryPoint.java:71) ~[NewLaunch.jar:?]
Caused by: java.lang.Throwable: Manually triggered debug crash
at net.minecraft.client.KeyboardHandler.tick(KeyboardHandler.java:506) ~[client-intermediary.jar:?]
... 10 more
Mappings Overview
Mappings are downloaded and parsed asynchronously. They are downloaded only once per version. Yarn and Quilt refresh their version every 48 hours to check for updates.
Highlights
From source dataGame versions
Supports 205 Minecraft versions, the newest being 1.21.11.
Loaders
Runs on Fabric.
Footprint
Rated a light load on a server.
StackDeobfuscator on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Optional on the server
- Server type needed
- Fabric
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 1.4.3, released 2024-07-07
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Fabric | 1.14 to 25w46a (205 versions) | 25w46a |
From 5 recorded builds of StackDeobfuscator.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 1.4.3 | 2024-07-07 | 1.14 to 25w46a (205 versions) | Fabric |
| 1.4.2 | 2023-12-05 | 1.14 to 25w46a (205 versions) | Fabric |
| 1.4.1 | 2023-08-12 | 1.14 to 25w46a (205 versions) | Fabric |
| 1.4.0 | 2023-07-31 | 1.14 to 23w32a (28 versions) | Fabric |
| 1.3.2 | 2023-04-14 | 1.14 to 23w32a (44 versions) | Fabric |
Run StackDeobfuscator on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogGameplay & overhauls
New mechanics, content and overhauls that change how the game plays.
Works on a server
From source side supportModrinth lists server-side support for StackDeobfuscator as optional: it can run on a server, but isn’t required there.
Compatibility
- Game
- Minecraft
- Loaders
- Fabric
- Runs on
- Serveroptional on the server
- Game versions
- 1.21.11 and 204 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
- ✓Authorbooky10, as published on Modrinth
- ✓LicenseLGPL-3.0-onlyFree












