The Fastest Path from Log Chaos to Insight.
A blazingly fast command-line tool for log analysis.
Production is down. Every second counts. LogLens gives you the fastest speed-to-insight for troubleshooting critical problems. Stop fighting your tools, start finding answers.
Get Started for FreeFrom Chaos to Clarity. Instantly.
See the interactive TUI in action, backed by a powerful command-line query engine.
# Find critical 5xx errors from the
# payments service with high latency, using natural language
$ 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 🦀
LogLens is written in Rust to guarantee speed, reliability, and efficiency.
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.
Free vs. Pro
| 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`) | ✅ | ✅ |
| Advanced Structured Queries (`query`) | ❌ | ✅ |
| Time-based Filtering (`--since`, `--until`) | ❌ | ✅ |
| High-Speed Result Counting (`count`) | ❌ | ✅ |
| Real-time Log Tailing with Filtering & Highlighting (`watch`) | ❌ | ✅ |
| Dynamic Statistical Summaries (`stats summary`, `describe`) | ❌ | ✅ |
| Interactive TUI Log Explorer & Live Following (`tui`) | ❌ | ✅ |
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 | shWindows (via PowerShell)
Open a new PowerShell terminal and run the following command:
irm https://download.getloglens.com/install.ps1 | iex