LogLens — High-Performance Open-Source Log Analysis
Real-time observability for modern teams. Sub-second query latency across petabyte-scale log volumes, powered by a battle-tested open-source engine.
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Everything you need to tame your logs
Engineered from the ground up for teams that ship fast and need answers faster. LogLens replaces brittle grep pipelines and overpriced SaaS suites with a single, transparent tool.
Lightning-Fast Search
Query 12 TB of structured logs in under 800 ms using our proprietary columnar index. Full-text search, regex, and field-level filters ship out of the box — no tuning required.
Intelligent Alerting
Define threshold-based and anomaly-detection alerts that fire to Slack, PagerDuty, or Webhook endpoints. Teams at Stripe-scale reduce mean-time-to-detect by 63 % within the first week.
Native Integrations
First-class connectors for Kubernetes, AWS CloudWatch, Datadog, Prometheus, and 40+ more sources. Ship logs from any stack without rewriting your pipeline.
Open-Source Core
LogLens is licensed under Apache 2.0. Audit every line, fork at will, or contribute back. Over 1,800 GitHub stars and 140 active contributors as of Q1 2025.
Role-Based Access
Fine-grained RBAC lets you lock dashboards, log streams, and alert configs down to the team level. SOC 2 Type II and GDPR-ready out of the box.
Cost Transparency
Self-host on your own infrastructure or use our managed tier at $0.04 / GB ingested. No hidden egress fees, no surprise overage charges — ever.
From raw log to insight in three steps
LogLens removes the friction between your infrastructure and your team's ability to act on what's happening right now.
- Ingest. Drop our lightweight Fluent Bit sidecar into any pod, ship via our HTTP API, or forward from syslog. Logs arrive in under 200 ms with zero data loss.
- Index. The columnar engine parses JSON, CEF, and syslog formats automatically. Custom parsers are a single YAML file — no rebuilds, no downtime.
- Query & Act. Run ad-hoc searches, build persistent dashboards, or trigger alerts. Every action is auditable and replayable.
Engineering Manager Priya Nair at Vercel reports: "We replaced three separate tools — one for log search, one for alerting, one for dashboards — with LogLens in a single afternoon. The latency improvement alone paid for the migration."
Numbers that speak for themselves
2.4 M+
Logs ingested per second across our managed fleet, with p99 latency under 1.2 seconds.
1,847
GitHub stars, 140 active contributors, 340 merged PRs in the last 90 days.
312
Engineering teams across 48 countries running LogLens in production today.
"We migrated from a $180k/year SaaS log platform to self-hosted LogLens. Our query latency dropped from 4 seconds to 300 ms, and our engineers finally have the visibility they've been asking for."
Ready to see your logs at lightspeed?
Spin up a free LogLens instance in under five minutes. No credit card, no commit — just raw, unfiltered observability.
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