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OpenObserve vs Sloggo
Full-featured observability platform with long-term storage, unlike Sloggo’s minimal collector
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OpenObserveOpen source observability built for petabyte scale.png?width=96)
SloggoMinimal Syslog collector based on DuckDBWhich to pick
Pick OpenObserve if you want…
- Unified, petabyte-scale observability
- Comprehensive log analytics
- Integrations with OpenTelemetry, Prometheus or Datadog Agent (on OpenObserve's list, not Sloggo's)
Pick Sloggo if you want…
- Minimal self-hosted syslog collector
- A free, open-source tool
- Integrations with Docker, Podman or DuckDB (on Sloggo's list, not OpenObserve's)
Side by side
- What it is
- OpenObserve:OpenObserve is an open-source observability platform for logs, metrics and traces at petabyte scale.
- Sloggo:Sloggo is a lightweight RFC 5424 syslog collector and viewer built on DuckDB that runs as a single process.
- Best for
- OpenObserve:Unified, petabyte-scale observability
- Sloggo:Minimal self-hosted syslog collector
- Who it’s for
- OpenObserve:Engineering teams needing high-performance, cost-effective observability.
- Sloggo:Developers and ops needing simple, low-resource log collection for small-to-medium setups.
- Pricing
- OpenObserve:Paid
- Sloggo:Open source
- Plans
- OpenObserve:OpenObserve Cloud $0.50/GB per GB ingest
- Sloggo:—
- Open source
- OpenObserve:Yes
- Sloggo:Yes, 463 GitHub stars
- Works with
- OpenObserve:OpenTelemetry, Prometheus, Datadog Agent, Kubernetes, AWS, Google Cloud, Azure
- Sloggo:Docker, Podman, DuckDB
OpenObserve features
- Unified observability stack. Collect, correlate and view logs, metrics, traces and more in a single platform.
- Columnar Parquet storage. Rust-based storage engine provides 140× storage efficiency and 30× compute efficiency.
- Auto-correlation engine. Analyzes millions of signals per second to automatically link related events.
- AI SRE agent. Continuously triages incidents, finds root cause and drafts post-mortems.
- AI assistant. Answers natural-language queries across all telemetry without writing queries.
- LLM observability. Tracks prompts, completions, token usage and cost for LLM applications.
- Kubernetes integration. One-click collector deploys logs, metrics, events and zero-code traces for clusters.
- OpenTelemetry-native ingestion. Supports OpenTelemetry, Prometheus and Datadog agents for drop-in migration.
Sloggo features
- RFC 5424 ingestion. Collects syslog over TCP and UDP using the RFC 5424 protocol.
- Fast search & filtering. Provides real-time search, filtering and tailing of collected logs.
- High ingestion rate. Handles up to 1 million logs per second.
- Single-process design. Runs in one lightweight process under 10 MiB compressed size.
- Web UI. Clean modern interface built with data-table-filters for log exploration.
- Env-var configuration. All settings adjustable via environment variables, including ports and retention.
OpenObserve vs Sloggo FAQ
Is OpenObserve or Sloggo free?+
OpenObserve is paid. Sloggo is free and open source.
Is OpenObserve or Sloggo open source?+
Yes, both are open source: OpenObserve and Sloggo (phare/sloggo on GitHub, MIT license).
Do OpenObserve and Sloggo integrate with the same tools?+
Their integration lists don't overlap: OpenObserve lists OpenTelemetry, Prometheus, Datadog Agent, Kubernetes and 3 more; Sloggo lists Docker, Podman and DuckDB.
On DevHunt
OpenObserve
39 upvotes · Launched on DevHunt on Apr 14, 2026
Based on each tool's website and DevHunt data. Details may change; check the official sites.