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SigLens

Unified observability engine delivering 100x Splunk efficiency

SigLens is a single‑binary observability platform for logs, metrics, and traces, offering up to 100× faster queries and 90% lower costs compared to Splunk, Elastic, and Loki.

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Overview

Overview

SigLens targets engineering teams that need a unified view of logs, metrics, and traces without the overhead of multiple tools. Built on years of monitoring experience, it promises dramatically lower cost and higher performance than traditional commercial solutions.

Capabilities

The platform ingests data via OpenTelemetry, Elastic, Splunk HEC, and Loki formats, and lets users query with either Splunk SPL or standard SQL. Its single‑binary architecture eliminates external dependencies, enabling rapid onboarding and simple maintenance. Benchmarks show up to 8 TB/day per instance and petabyte‑scale ingestion on modest cloud resources.

Deployment

Deploy SigLens via Git, Docker, or Helm, and run it on anything from a developer laptop to a fleet of EC2 instances. The lightweight design reduces hardware requirements, delivering up to 90% cost savings while maintaining high query speed.

Highlights

Supports OpenTelemetry, Elastic, Splunk HEC, and Loki ingestion formats
Query with Splunk SPL or standard SQL
Single binary with zero external dependencies
Handles up to 8 TB/day per node, scaling to petabytes on modest EC2 fleet

Pros

  • Dramatic cost reduction versus commercial observability suites
  • High ingestion throughput (8 TB/day per instance)
  • Unified query across logs, metrics, and traces
  • Zero external dependencies simplify operations

Considerations

  • AGPL-3.0 license may limit commercial embedding
  • Limited native visualizations; relies on external dashboards
  • Performance benchmarks are self‑reported and may vary
  • Single binary may lack fine‑grained scaling controls of distributed systems

Managed products teams compare with

When teams consider SigLens, these hosted platforms usually appear on the same shortlist.

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Better Stack (Log Management)

Cloud-based log management solution for aggregating, searching, and analyzing application logs at scale

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Coralogix

Observability and log analytics with real‑time insights

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Logz.io

AI-powered observability metrics for distributed systems

Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.

Fit guide

Great for

  • Teams replacing Splunk or Elastic with a cost‑effective alternative
  • Small to medium deployments preferring a single binary
  • Organizations needing unified query language across observability data
  • Developers familiar with SPL or SQL

Not ideal when

  • Enterprises requiring multi‑tenant SaaS with built‑in RBAC
  • Use cases demanding extensive out‑of‑the‑box visual dashboards
  • Environments where GPL‑compatible licensing is prohibited
  • Very large scale clusters needing specialized sharding beyond current design

How teams use it

Log aggregation for microservice fleet

Collects logs from 10,000 services, queries them instantly with SPL, cutting storage costs by 90%.

Unified tracing and metrics for CI pipelines

Ingests OpenTelemetry data from CI jobs, enabling correlated trace‑metric analysis without separate tools.

Cost‑effective observability in a startup

Runs on a single laptop during development, handling 8 TB/day, eliminating need for expensive SaaS subscriptions.

Petabyte‑scale data lake on modest cloud

Processes 1 PB/day using only 32 EC2 instances, outperforming traditional stacks that need thousands of nodes.

Tech snapshot

Go76%
JavaScript15%
HTML5%
CSS3%
Shell1%
Python1%

Tags

logsopensourceobservabilityopentelemetrygodistributed-tracingsplunklog-searchhacktoberfestnewrelicloggingmonitoringlog-management

Frequently asked questions

What data formats can SigLens ingest?

SigLens accepts OpenTelemetry, Elastic, Splunk HEC, and Loki ingestion formats, covering most common log, metric, and trace sources.

Which query languages are supported?

You can query data using Splunk SPL or standard SQL, allowing flexibility for existing skill sets.

Do I need external services to run SigLens?

No. SigLens is delivered as a single binary with zero external dependencies, runnable on a laptop or any server.

How does SigLens achieve cost savings?

Its efficient storage engine and high ingestion throughput reduce required infrastructure, delivering up to 90% lower operational costs versus Splunk, Elastic, or Loki.

Is there a community or support channel?

Yes, users can join the project’s Slack community for questions and assistance.

Project at a glance

Active
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LicenseAGPL-3.0
Repo age2 years old
Last commit2 months ago
Primary languageGo

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