NewCraftRank SitesA free website and storeMake yours ›
1.10.41CraftRank Launcher is out Download ›AshlarFree server software built on Paper, with DDoS and backdoor protection See Ashlar ›Server ownersYour own launcher with your name, logo and one click onto your server See themes ›
Resources / Mods / StackDeobfuscator

StackDeobfuscator

Remaps logged stacktraces to readable mappings

ModsFree1.16 – 1.21
by booky10 · listed from Modrinth
Download › Install with the launcher

Opens Modrinth · 7,838,567 downloads there

StackDeobfuscator screenshot 1StackDeobfuscator screenshot 2StackDeobfuscator screenshot 3

What it does

Remaps logged stacktraces to readable mappings

StackDeobfuscator is a resource made by booky10. It supports Minecraft 1.16 – 1.21. It has been downloaded 7,838,567 times on Modrinth. The last update came out on Jul 7, 2024.

Supported versions

1.211.201.191.181.171.16

Release history

StackDeobfuscator has had 10 releases on Modrinth since Mar 20, 2023. None of them came out in the past year. The newest is 1.4.3, released on Jul 7, 2024. It is made for Minecraft 1.14 – 1.20.2. It runs on Fabric. The download is 314 KB.

VersionReleasedMinecraftType
1.4.3Jul 7, 20241.14 – 1.20.2Release
1.4.2Dec 5, 20231.14 – 1.20.2Release
1.4.1Aug 12, 20231.14 – 1.20.2Release
1.4.0Jul 31, 20231.14 – 1.20.1Release
1.3.2Apr 14, 20231.14 – 1.20.1Release

Latest release on GitHub

StackDeobfuscator is open source. Its newest release on GitHub is StackDeobfuscator v1.4.3, published on Nov 19, 2025.

  • Add more version data to web viewer (1.20.4-rc1 to 1.21)
  • Don't verify checksums for yarn maven metadata at all (#10)
  • This can't be reliably checked, as fabric's maven cache returns outdated files for a while after an update
  • Improve styling of web viewer
  • Update library to prevent issues with other mods updating mapping-io library
  • Caused by old breaking changes in fabric's mapping-io library

Full Changelog: v1.4.2...v1.4.3

Before that: StackDeobfuscator v1.4.2 (Dec 5, 2023), StackDeobfuscator v1.4.1 (Aug 12, 2023).

Description from the author on Modrinth

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This mod is obsolete for all Minecraft versions newer than 1.21.11.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: discord.gg/XSB7jn9

Web Version: 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.

Mappings · Compatible Minecraft Versions · Download Size (zipped¹)² · Cached Size (gzipped)²
Yarn · 18w49a (1.14 snapshot) or higher · 1.4 MiB · 1.4 MiB
Quilt · 1.18.2 or higher · 1.4 MiB (+1.1 MiB below 1.19.2) · 1.4 MiB (+1.1 MiB below 1.19.2)
Mojang · 1.14.4 and 19w36a (1.15 snapshot) or higher · 9.0 MiB (uncompressed) + 559.1 KiB · 1.3 MiB + 558.6 KiB

¹: Mojang mappings are not compressed

²: Sizes as of 12th May 2024 (1.20.6 is latest)

Written by booky10. Read it with pictures on Modrinth.

How to install StackDeobfuscator

  1. This mod runs only on your own game. Servers do not need it, so you can use it on any server.

  2. Install Fabric for Minecraft 1.16 – 1.21.

  3. Download the .jar file from Modrinth and put it in the mods folder of your .minecraft directory.

  4. Start Minecraft with the Fabric profile.

  5. With the CraftRank Launcher you can skip these steps: open Mods, search for StackDeobfuscator and click Install.

Compatibility

Minecraft versions
1.21, 1.20, 1.19, 1.18, 1.17, 1.16
Runs on
Fabric
Where it runs
Client only (your game)
Edition
Java
Needs
Nothing else
License
GPL
Price
Free
Upkeep
Actively updated (Nov 9, 2026)

StackDeobfuscator compared with similar ones Compare all alternatives

ResourceDownloadsVersionsLast updatePrice
StackDeobfuscatorthe one you looked at7.8M1.16 – 1.21Jul 7, 2024Free
Xaero's Minimapthexaero120M1.8 – 26.x15 days agoFree
Xaero's World Mapthexaero105.4M1.8 – 26.x15 days agoFree
Litematicamasa27.9M1.12 – 26.xSep 28, 2026Free

Questions

Does StackDeobfuscator work on Minecraft 26.x?

Not yet. The newest version it supports is Minecraft 1.21.

Is StackDeobfuscator free?

Yes. StackDeobfuscator is free to download from Modrinth.

Is StackDeobfuscator client-side or server-side?

Client-side. StackDeobfuscator goes in your own mods folder and works on any server, including servers without mods.

Is StackDeobfuscator still updated?

Yes. The last update came out in the past day.

What are the best alternatives to StackDeobfuscator?

The closest ones are Xaero's Minimap, Xaero's World Map and Litematica. Compare all alternatives

Alternatives to StackDeobfuscator

Xaero's MinimapMods · 1.8 – 26.x

Displays a map of the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which help you find the locations…

Free120,043,097 downloads
Xaero's World MapMods · 1.8 – 26.x

Adds a full screen world map which shows you what you have explored in the world. Works great together with Xaero's Minimap.

Free105,364,944 downloads
Compare all alternatives ›

Reviews

–★★★★★
0 reviews
50
40
30
20
10

Log in to leave a review.