BugJar | Lua Error Browser

BugJar is a Lua error viewer for World of Warcraft. It records the errors your addons throw and shows them in one sortable table, so you can see what is breaking, which addon is responsible, and how often it is happening. Repeated errors are grouped into a single entry with a count rather than filling the list.

Works on Midnight (retail), Mists of Pandaria Classic, Burning Crusade Classic / Anniversary, and Classic Era.

Built for the Midnight error flood

Patch 12.0 changed what addons may read, and error lists are now buried under "secret value" and "tainted by" messages that are API fallout rather than anyone's bug. BugJar sorts those into their own bucket. Real bugs only is on by default, so what you see is the errors somebody can actually fix, and the status bar always says how many are hidden.

It also handles a stack that comes back protected, which is what happens in raids and Mythic+. Those errors get recorded instead of silently lost.

Act on what you find

Right-click any addon in the sidebar to copy all its errors as one report, mute it so a known-broken addon stops drowning the other sixty, delete its errors, or disable the addon and reload.

Features

Repeated errors collapse into one row with a count, blamed to the addon that caused it
Sidebar of every source, plus search and sorting on any column
Filters for the current session and for real bugs only, both on by default, with hidden counts shown in the status bar
Detail view with message, stack, locals and build, and one-click select-all for copying
Optionally hides Blizzard's own Lua error popup
Captures blocked and forbidden actions (taint)
Rate limited, so an error storm cannot freeze your client
Minimap button with counts and worst offenders on hover

No dependencies. BugJar records errors itself, and it detects other error-capture addons and reads from them rather than competing for the error handler, so running one alongside it is safe.

Commands

/bugjar        Open the error list (or /bj)
/bugjar config Open options
/bugjar clear  Delete all captured errors

Installation

Install through the CurseForge app, or drop the BugJar folder into your client's Interface/AddOns/ directory. Type /bugjar once it is loaded.

Bug reports and feature ideas are welcome in the comments.