Go from Log Chaos to Clear Insight, Instantly.
A blazingly fast command-line tool for log analysis.
Production is down and every second counts. LogLens is your high-speed toolkit for structured log analysis, performance debugging, and incident response, right in your terminal.
Get Started for FreeExplore Interactively, Analyze Instantly.
Start with the interactive TUI to visually explore logs, then use the command-line engine for powerful statistical analysis.
Want to see more? Check out the Use Cases page for more practical examples.
Why LogLens?
Built for engineers who value speed, efficiency, and privacy.
Blazing Speed
Search and query massive log files in seconds, not minutes. Built in Rust and parallelized to use all your CPU cores, LogLens is faster than traditional text-processing tools.
Ergonomic Syntax
Ditch complex jq filters or escaping quotes for grep. LogLens offers a natural, intuitive query language designed specifically for logs, making filtering a breeze.
Slash Cloud Costs
Stop paying for expensive hot storage. Archive logs to cheap S3 and analyze them locally. LogLens processes compressed archives on the fly, saving you thousands.
100% Local & Private
It's a single, dependency-free binary that runs entirely on your machine. Your logs and sensitive data are never uploaded or sent anywhere. Ever.
Free & Pro: A Tool for Every Workflow
| Feature | Free Tier | Pro Tier |
|---|---|---|
| High-Performance Text & Regex Search (`search`) | ✅ | ✅ |
| Search with Context, Squashing, & JSON Output | ✅ | ✅ |
| Gzip Compression & Decompression (`compress`, `decompress`) | ✅ | ✅ |
| Automatic Self-Updating (`update`) | ✅ | ✅ |
| Discover Log Schema (`fields`) - Automatically find and list all queryable fields from your structured logs. | ✅ | ✅ |
| Fluent Structured Queries (`query`) - Go beyond grep with a language purpose-built for JSON and logfmt. | ❌ | ✅ |
| High-Precision Time Filtering (`--since`, `--until`) - Instantly narrow investigations to the exact timeframe of an incident. | ❌ | ✅ |
| Optimized Result Counting (`count`) - Get match counts across gigabytes of logs in seconds. | ❌ | ✅ |
| Live Log Tailing & Filtering (`watch`) - Watch logs in real-time with powerful filters and highlighting. Your personal mission control. | ❌ | ✅ |
| Instant Statistical Summaries (`stats`) - Automatically generate summaries of your log data to spot trends and anomalies. | ❌ | ✅ |
| Interactive TUI Explorer (`tui`) - A full-featured terminal UI to navigate, search, and filter logs without leaving the command line. | ❌ | ✅ |
Get Started in Seconds
LogLens is a single, portable binary with no dependencies. Install it using the method that's most convenient for you.
macOS & Linux (via Homebrew) Recommended
Install and manage LogLens using the Homebrew package manager:
brew tap Caelrith/loglens
brew install loglensmacOS & Linux (via Shell)
Open your terminal and run the following command:
curl -sSL https://download.getloglens.com/install.sh | shWindows (via PowerShell)
Open a new PowerShell terminal and run the following command:
irm https://download.getloglens.com/install.ps1 | iex100% Local & Private
LogLens runs entirely on your machine. Your logs and data are never uploaded or sent anywhere, ensuring your sensitive information stays secure.
Security is our top priority. Read our Trust & Safety pledge.