Black Widow - Salesforce Debug Log Analyzer

See every log from one click as a single transaction.

One Save in Salesforce can fan out into 13 logs across triggers, flows, async jobs, and UI reloads. Black Widow groups that chain instantly, separates sync vs async cost, and surfaces what to fix first. Free desktop app for Windows, macOS, and Linux.

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Why this instead of reading raw logs in a text editor?

apex-07L4x000.log — 18,442 lines

161.0 APEX_CODE,FINE;APEX_PROFILING,INFO;CALLOUT,INFO;DB,FINEST;SYSTEM,DEBUG;VALIDATION,INFO;WORKFLOW,INFO

212:04:51.0 (12034879)|EXECUTION_STARTED

412:04:51.0 (13002145)|SOQL_EXECUTE_BEGIN|[14]|Aggregations:0|SELECT Id,Status,OwnerId FROM Case WHERE Id IN :caseIds

512:04:51.0 (14882013)|SOQL_EXECUTE_END|[14]|Rows:1

612:04:51.0 (15110023)|HEAP_ALLOCATE|[71]|Bytes:3

712:04:51.0 (16204412)|METHOD_ENTRY|[12]|01p4x00000Aa2|CaseHandler.beforeUpdate()

812:04:51.0 (17334129)|USER_DEBUG|[88]|DEBUG|Processing 1 case record

912:04:51.0 (18772301)|SOQL_EXECUTE_BEGIN|[34]|Aggregations:0|SELECT Id FROM Contact WHERE AccountId=:accId

1012:04:51.0 (19551044)|SOQL_EXECUTE_END|[34]|Rows:6

1112:04:51.0 (20114882)|ENTERING_MANAGED_PKG|[EXTERNAL]|vlocity_cmt

1212:04:51.0 (21887310)|CODE_UNIT_STARTED|[EXTERNAL]|vlocity_cmt.TriggerHandler

1412:04:51.0 (23998120)|DML_END|[52]

1512:04:51.0 (24550021)|CODE_UNIT_STARTED|[EXTERNAL]|Workflow:Case

1612:04:51.0 (25110933)|FLOW_START_INTERVIEWS_BEGIN|1

1712:04:51.0 (26773410)|SOQL_EXECUTE_BEGIN|[8]|Aggregations:0|SELECT Id,Email FROM User WHERE Id=:ownerId

1812:04:51.0 (27554120)|SOQL_EXECUTE_END|[8]|Rows:1

2012:04:51.0 (29110044)|USER_DEBUG|[120]|DEBUG|Recursion guard: CaseTrigger re-entry #3

2112:04:51.0 (30557120)|CODE_UNIT_FINISHED|CaseTrigger on Case

2212:04:51.0 (31200410)|CUMULATIVE_LIMIT_USAGE

Reading raw logs in any text editor: open log 1, read thousands of lines, repeat 13 times.

Black Widow Explain tab showing a plain-English transaction explanation with recursion and managed-package detection

Drag one folder. See the full transaction. Get recommendations in minutes.

7.4s user waitRecursion in CaseTriggerPlain-English explanationUnder 10 minutes

Six core capabilities, no filler.

Transaction grouping

All logs from one user action, one timeline.

Phase detection

Split backend, frontend, and async tails instantly.

Execution tree

Visual call hierarchy from trigger to flow to callout.

SOQL and DML analysis

N+1 and governor pressure surfaced before incidents.

Smart recommendations

Actionable fixes, not just diagnostics.

PII scanner

Flag sensitive values before sharing logs externally.

And more: live org connection, exports, and broader workflow support.

See every log from one click as a single transaction.

Why this instead of reading raw logs in a text editor?

Three steps from noisy logs to a fix list.

1) Drop your log folder

2) See sync vs async impact

3) Ship the fix