DebugPilot

Capture console errors, network failures, user actions, screenshots, and debugging context in one local session.

DebugPilot is a local web debugging recorder and diagnostic tool for developers, QA engineers, and technical support teams. Start a debug session on the page you want to inspect. DebugPilot captures debugging evidence in one local session, helping you understand what happened, identify important differences, investigate failures, and create structured reports for developers. With Session Comparison, Failure Timeline, and evidence-based analysis, DebugPilot goes beyond recording events to help you investigate why web applications behave differently. **Core Features** **Recording & Debugging** • Console errors and browser warnings • JavaScript runtime exceptions with source, line, column, and stack context • Network request metadata, failures, slow requests, and bounded request/response data • Issues Only view for focusing on detected problems • Automatic Action Trace linking user actions with related debugging evidence • Semantic DOM click context for buttons, links, inputs, and other page elements • Precise Canvas/WebGL click coordinates and relative positions • Nearby user actions and error context • Automatic screenshot evidence around detected errors • HTTP, asset, WebSocket, and Data URL classification • Advanced Function Trace with call stacks and built-in Source Preview • Local session history **Session Comparison & Failure Analysis — New in 1.7** • Good vs Bad Session Comparison for identifying differences between normal and problematic sessions • Automatic classification of New Issues, Resolved Issues, Changed Behavior, Unchanged Events, and Insufficient Evidence • Comparison across Console, Network, WebSocket, Action Trace, and Function Trace evidence • Failure Timeline showing the sequence of events surrounding a selected problem • Evidence-based Possible Causes with supporting findings, confidence levels, source locations, and limitations • Clear distinction between confirmed observations, possible explanations, and insufficient evidence • Direct references to original debugging evidence • Filtering and navigation to help developers focus on meaningful differences • Deterministic analysis without external AI processing **WebSocket Debugging & Simulation** • WebSocket connection monitoring and message inspection • WebSocket message simulation with Send to Server and Inject to Client • WebSocket Traffic Control with outgoing/incoming blocking and delay • Live WebSocket message activity and simulation feedback • Connection states including OPEN, CLOSED, and UNKNOWN • Support for existing connections, reconnections, iframes, cross-origin frames, and single-page applications • WebSocket simulation and traffic control evidence in Session Timeline and Reports • Automatic cleanup when recording stops **Reports & Evidence Sharing** • Copy Context for sharing focused debugging evidence • Export Issue as a standalone offline HTML report • Full session HTML reports for offline review • Reproduction Reports with event timelines, possible causes, supporting evidence, and reproduction context • Copyable reproduction summaries • Bounded WebSocket and Action Trace evidence in offline reports • Explicit recording and export provenance where available • Clear reporting of truncated, unavailable, missing, or omitted evidence • Source locations and evidence references for further investigation Issue packages can include the related user action, stack trace, timeline context, console context, network context, WebSocket activity, screenshots, and possible explanations while helping users focus on relevant evidence. DebugPilot does not guarantee that every failure can be reproduced or that every possible cause is a confirmed root cause. Diagnostic conclusions depend on the evidence captured during recording. **Privacy by Design** DebugPilot works locally on your device. Debugging data is not automatically uploaded to the extension developer or third parties. Recording only starts after you explicitly start a debug session for the selected browser tab. During an active recording session, DebugPilot may capture bounded HTTP request and response data, WebSocket messages, URLs, console output, stack traces, user action context, and screenshots. Full-Fidelity exports preserve available debugging evidence and may contain sensitive information, including authentication tokens, URL parameters, personal information, or confidential application data embedded in captured content. DebugPilot does not intentionally collect passwords, cookie contents, authorization headers, or clipboard contents as separate data fields. However, sensitive information may appear incidentally within recorded payloads, messages, URLs, logs, or screenshots. Exported reports should not be assumed to be automatically sanitized. Always review debugging evidence before exporting, sharing, or publishing reports. WebSocket simulation and traffic controls operate only during an explicitly started debugging session. Simulated incoming messages are delivered to client-side handlers and are not sent by the server. Blocking and delay operate at the WebSocket application level, not as device-wide network throttling. No account or external cloud service is required to use DebugPilot. --- *** WHAT'S NEW *** **Version 1.7.0 — Session Comparison & Failure Analysis** • Added Good vs Bad Session Comparison for identifying differences between normal and problematic debugging sessions • Added automatic classification of New Issues, Resolved Issues, Changed Behavior, Unchanged Events, and Insufficient Evidence • Added Failure Timeline to reconstruct the observed sequence of events around selected problems • Added evidence-based Possible Causes with findings, supporting evidence, confidence levels, source locations, and limitations • Added Reproduction Reports with copyable summaries and standalone offline HTML export • Added direct navigation from comparison findings to original debugging evidence • Improved comparison accuracy for HTTP timing differences, duplicate events, missing evidence, and incomplete sessions • Improved Action Trace and Function Trace completeness handling to avoid misleading resolved or completed conclusions • Expanded offline HTML reports with bounded WebSocket message evidence, connection details, and Action Trace references • Improved event timing accuracy by distinguishing occurrence, observation, and processing times • Improved HTTP, asset, WebSocket, and Data URL classification and request statistics • Added report provenance and evidence completeness information • Added clearer Full-Fidelity export privacy warnings • Improved WebSocket observer lifecycle handling for iframes, cross-origin frames, and reconnections • Improved WebSocket message refresh responsiveness and recording cleanup • Improved reliability, compatibility with existing session history, and overall stability • No external AI service required • No additional extension permissions required **Version 1.6.0 — WebSocket Debugging & Simulation** • Added WebSocket Debugging & Simulation for testing real-time web applications • Added Send to Server for sending custom Text and JSON messages through existing WebSocket connections • Added Inject to Client for simulating incoming server messages without contacting the server • Added WebSocket Traffic Control to block outgoing and incoming messages • Added configurable outgoing and incoming message delays • Added Reset to Normal for quickly restoring WebSocket traffic behavior • Added live Message Activity with simulation results, message details, and error feedback • Improved WebSocket connection discovery, including existing connections and automatic reconnections • Improved connection status handling with clear OPEN, CLOSED, and UNKNOWN states • Improved support for iframes, cross-origin frames, and single-page applications • Added WebSocket simulation and traffic control evidence to Session Timeline and Reports • Improved automatic cleanup when recording stops, including cancellation of pending delayed messages • Improved WebSocket interface, connection selection, and Traffic Control usability • Improved performance protection, connection limits, and overall stability • No additional extension permissions required **Version 1.5.0** • Added automatic action capture with no separate arming step • The Actions report now connects user actions with nearby HTTP requests, WebSocket activity, runtime issues, and navigation events • Added HTTP and WebSocket request and response data • Added support for JSON, text, form data, binary previews, and safe best-effort Protobuf decoding • Improved WebSocket connection identification, request-response pairing, and background traffic classification • Improved Function Trace, Call Stack, and Source Preview • Improved live report updates, session cleanup, safety limits, and overall stability • All data remains stored locally, with no additional permissions **Version 1.4.0** • Added Advanced Deep Trace for tracing JavaScript function calls • Added real call stacks with source URL, line, and column information • Added built-in Source Preview for inspecting code without interrupting recording • Added Deep Trace directly inside DebugPilot reports • Simplified the interface with unified Start and Stop controls • Added per-site recent Trace Targets for faster repeated debugging • Improved trace safety, stack completeness, performance protection, and source-location accuracy **Version 1.3.0** • Added recording guardrails for long debugging sessions • Sessions now stop automatically after the 2-hour recording limit • Added clear warnings when Console, Network, or Timeline recording limits are reached • Preserved existing evidence instead of silently replacing older records • Added estimated session size tracking with a 200 MB safety limit • Screenshot capture now pauses safely at its 100 MB limit while other recording continues • Added clearer stop reasons and recording integrity information to reports and history • Improved session recovery and local evidence storage reliability **Version 1.2.1** • Improved semantic click context for modern web interfaces • Added clearer labels for clicked buttons, links, and other controls • Preserved full URL parameters for complete debugging evidence • Improved menu and container label handling • Updated privacy disclosures for full-fidelity debugging **Version 1.2** • Added Copy Context for individual issues • Added standalone Export Issue reports • Added semantic click context for buttons, links, inputs, and other DOM elements • Preserved precise coordinate context for Canvas and WebGL applications • Improved privacy handling in shared and exported reports • Improved Timeline, Network, and Error Context readability **Version 1.1** • Added Issues Only view • Improved JavaScript runtime exception detection and stack context • Added handled-later detection for Promise rejections • Improved error deduplication across Console, Runtime, Browser, and Network events • Added browser warning and error classification • Improved Console and Network report readability