Splunk alternatives

3 tools to consider instead of Splunk, shown against it.

Splunk Elasticsearch Sumo Logic Graylog
Vendor Cisco Systems, Inc. (Splunk) Elasticsearch B.V. (Elastic) Sumo Logic, Inc. Graylog, Inc.
Pricing model Quote only Usage-based Quote only Free tier + paid plans
Free tier No Yes No Yes
Deployment Cloud, Self-hosted Cloud, Self-hosted Cloud Cloud, Self-hosted
Open source No No (Elastic License 2.0 / SSPL (source-available; AGPL-3.0 option since 2024)) No Yes (SSPL (Graylog Open); proprietary (Enterprise/Security))
Best for Large enterprises with existing Splunk investment needing unified log search across IT operations and security. Teams needing a flexible, self-hostable search/log backend that can double as a SIEM without a separate platform. DevOps and SecOps teams wanting unlimited-ingest SaaS log analytics with a single credits pool across use cases. Teams wanting a free, self-hosted log management core with a clear upgrade path to SIEM features.
Pricing

Workload-, ingest- or activity-based licensing for the core platform; no flat public per-GB rate is listed, quotes vary by data volume.

Checked on the vendor's own page on September 21, 2026: no prices are published. Expect to be quoted.

Elastic Cloud Hosted starts from a base monthly rate for a reference config plus usage-based instance pricing; self-managed is free with paid subscription tiers for advanced features.

Standard from $99/month
Gold from $114/month
Platinum from $131/month
Enterprise from $184/month

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Credits-based consumption model: unlimited ingest, but analytics activity draws down prepaid credits at a rate that varies by data tier; no flat public per-GB rate.

Essentials quote
Enterprise Suite quote

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Graylog Open is free with no volume cap; Enterprise and Security editions are licensed annually by daily processed-data volume (GB/day) or prepaid consumption units (GCU).

Graylog Open Free
Graylog Enterprise from $15,000/year
Graylog Security from $18,000/year

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Features
  • SPL search language over indexed machine data
  • Custom dashboards and scheduled alerting
  • Enterprise Security app for SIEM use cases on the same data
  • IT Service Intelligence for service-level correlation
  • Federated search across indexes and Splunk Cloud
  • Broad ecosystem of prebuilt technology add-ons
  • Distributed inverted-index search at petabyte scale
  • Kibana for dashboards and log/trace exploration
  • Vector and hybrid search (dense + lexical)
  • Elastic Security app for SIEM on the same indices
  • Serverless or provisioned hosted deployment options
  • Rich ingest pipelines via Logstash and Beats/Elastic Agent
  • LogReduce pattern recognition across high-volume log streams
  • Cloud SIEM built on the same log platform
  • Unified logs, metrics and traces
  • Prebuilt apps for common cloud services
  • Real-time dashboards and alerting
  • Credits-based cost model decoupling ingest from query cost
  • Centralized log collection, parsing and search
  • Custom dashboards and alert definitions
  • Data tiering between hot/warm storage
  • Archiving and compliance reporting (Enterprise)
  • Anomaly detection and correlation rules (Security)
  • Self-hosted or Graylog-managed cloud deployment

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