LogCat Analyzer: Debug Toolkit

LogCat Analyzer is a mobile debugging toolkit that turns raw logs into actionable insights. Open a log file, paste log text, or record your phone's logcat live — then instantly see crashes, performance issues and bugs, with explanations and fixes, right from your phone.

▶ NEW: LIVE LOGCAT (ANDROID)
Record this phone's system log in real time — no computer needed while you test.
• Start recording, open the app you're debugging, come back: everything is captured
• Instant crash and ANR alerts from other apps
• Filter by level, text, tag or package while recording; scrolls like Android Studio's Logcat
• Save & analyze with one tap, with your real device's model and Android version
• One-time setup: grant log access once from a computer with adb (step-by-step guide and copyable command in the app)

▶ INTELLIGENT ISSUE DETECTION
Automatically scans every log for 6 types of issues:
• Crashes — NullPointerException, IndexOutOfBounds, Fatal Signals with full stack traces
• ANR — Application Not Responding with root cause identification
• Memory Pressure — GC thrashing, low memory warnings, OutOfMemoryError
• Network Errors — timeouts, DNS failures, SSL errors, HTTP 4xx/5xx
• StrictMode Violations — disk/network on main thread, dropped frames
• Infinite Loops — repeated error patterns and retry storms
Each issue includes a severity badge, occurrence count, root cause and a suggested fix. Add your own detection rules for app-specific patterns.

▶ EXPLAIN & FIX WITH AI
• Plain-language explanation: what happened, likely root cause, step-by-step fix and code example
• Answers in your language — English, Vietnamese, Chinese, Japanese, Korean, French, Russian
• Sensitive data is hidden before anything is sent

▶ PRIVACY BUILT IN
• Emails, tokens, API keys, passwords in URLs, phone numbers and card numbers are replaced with labels like before you share logs, export reports or ask the AI
• Choose exactly what to hide in Settings › Privacy
• Logs are processed on your device; only the excerpt you choose to explain is sent to the AI

▶ CRASH ANALYSIS & REPORTS
• Visual crash timeline with expandable stack traces
• Crash summary grouped by exception type with severity (Low → Critical)
• Deobfuscate ProGuard/R8 stack traces with your mapping.txt
• Share a PDF crash report

▶ LOG EXPLORER
• Smart highlighting for crashes, lifecycle, warnings and network calls
• Search by text, regex, package:com.example or tag:MyTag; filter by V, D, I, W, E, A
• Bookmarks, multi-select, filter presets, fullscreen, adjustable font size
• Compare two log files side by side
• Group related files into debugging sessions
• Export as .txt, .logcat, CSV or JSON

▶ OPENS WHAT YOU HAVE
• Android Studio .logcat exports, adb logcat text, Firebase Crashlytics exports
• Open from your file manager or share sheet, or paste log text from Slack or email
• New in-app guide: how to get a log file from each source
• Large files open quickly without freezing

▶ PREMIUM
No ads, 200 AI explanations per month, PDF reports, all export formats, unlimited sessions, rules and mapping files, and live recordings of up to 100,000 lines with unlimited saves.

Dark, light and OLED themes • 7 languages

Whether you're debugging a crash on the go, triaging a QA report, or reviewing logs away from your desk — LogCat Analyzer shows you what went wrong and how to fix it.

Recent changes:
What's new in 3.4.0
• Live logcat (Android): record this phone's logs in real time, get crash alerts and analyze them in one tap
• Hide sensitive data (emails, tokens, keys…) before sharing or asking the AI
• AI explanations in your language
• New guide: how to get a log file
• Sample data is clearly labeled, and your real device is shown
• Large files open faster; fixed files that showed no entries