The Fastest Path from Log Chaos to Insight.

A blazingly fast command-line tool for log analysis.

Production is down and every second counts. LogLens is your high-speed toolkit for finding answers in the noise. Stop fighting clumsy tools and regain control.

Get Started for Free

Go from Query to Insight in Seconds.

See the interactive TUI in action, backed by a powerful command-line query engine.

Animated demo of the LogLens TUI in action


# Pinpoint 5xx errors from the payments service
# with high latency in the last 6 hours.
$ loglens query "./logs/prod-*.gz" \
  --query 'level is "error" and 
           status_code >= 500 and
           service is "payments" and 
           latency_ms > 1000' \
  --since "6h ago"

prod-payments-1.log.gz:1942
  {
    "timestamp": "2025-08-27T02:10:45Z",
    "level": "error",
    "service": "payments",
    "message": "Stripe API timeout",
    "status_code": 503,
    "latency_ms": 1342,
    "trace_id": "trace-d4a1b3"
  }

Want to see more? Check out the Use Cases page for more interactive demos.

Engineered for Performance 🦀

Built in Rust for the speed and reliability you need during critical investigations.

Blazing Speed

Leverages Rust's performance to search and query massive log files in seconds, not minutes. It efficiently uses all your CPU cores to process data in parallel.

Rock-Solid Reliability

Rust's memory safety means LogLens is dependable and won't crash, even under heavy load. You can trust it during critical production investigations.

Lightweight & Portable

It's a single, dependency-free binary with a tiny memory footprint. Drop it on any server, container, or laptop and it just works. No runtime required.

See the Benchmark Results

For Everyday Use vs. Professional Demands

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`)	✅	✅
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 Shell)

Open your terminal and run the following command:

curl -sSL https://download.getloglens.com/install.sh | sh

Windows (via PowerShell)

Open a new PowerShell terminal and run the following command:

irm https://download.getloglens.com/install.ps1 | iex