Log File Viewer

An offline, FREE, multi-language app for opening, filtering and searching log files.

Log File Viewer is a fast, clean way to read log files on your phone. It could be that you're debugging an Android crash, reviewing a server access log, or scanning a JSON event stream, it parses your file, color-codes every level, and lets you find what matters in seconds.

Here are it's core features:

1. Auto-detects common formats

- Android logcat (brief and threadtime)

- JSON / NDJSON structured logs

- Apache / Nginx access logs

- Syslog

- ISO timestamp + level

- Plain text with embedded levels

2. Filter, search, focus

- Tap level chips to show only ERROR, WARN, INFO, DEBUG, TRACE

- Live count badges per level

- Plain-text search with prev/next match navigation

- Regex search (PRO) for power users

3. Built for reading

- Color-coded level badges

- Syntax highlighting for IPs, URLs, paths, numbers, JSON keys

- Word wrap, line numbers, adjustable font size

- Beautiful light and dark themes

- Tap any line for full details + copy

4. Smart stats

- Donut chart of level distribution

- Top recurring error messages

- File metadata: format, size, line count, time range

5 Bookmarks

- Mark important lines and jump back instantly

5. Share & export

- Export filtered results as a new log file

6. PRO unlocks

- Files up to 100 MB

- Regex search and filtering

- Custom highlight rules — color-code your own keywords

- Export filtered logs

- Unlimited bookmarks

Just download and get started. Open .log, .txt, .json, .csv, .out, .err and more. Works offline.