Software · head to head
Splunk vs Consul
The short version
- Each has a real cost: Splunk no prices are published on any plan; every model requires contacting sales for an estimate; Consul namespaces, admin partitions and other multi tenancy controls are Consul Enterprise only
- They diverge on capability: Splunk covers Log aggregation, Consul covers Service discovery.
Where they differ
Only the attributes on which Splunk and Consul actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Splunk
- Log aggregation
- Real-time monitoring
- Data visualization
- Full-text search
- Custom dashboards
- Alert management
- Anomaly detection
- Log parsing
Only in Consul
- Service discovery
- Health checking
- Key/value store
- Multi-datacenter
- DNS interface
- Service mesh
- Load balancing
- Configuration management
What people use each for
The jobs each tool is most often brought in to do.
Splunk
- Log search and analysis across infrastructurenot Consul
- SIEM, SOAR and UEBA for a security operations teamnot Consul
- Application performance and infrastructure monitoringnot Consul
- Cloud, private cloud or on-premises deploymentnot Consul
Consul
- Service discovery and health checking across dynamic infrastructurenot Splunk
- Running a service mesh with mutual TLS between servicesnot Splunk
- Distributed key value configuration storage for applicationsnot Splunk
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Splunk
- No prices are published on any plan; every model requires contacting sales for an estimate
- Three separate pricing models, workload, ingest and entity, so the same deployment costs different amounts depending on which was signed
- Ingest pricing bills on data volume, so cost tracks how much you log rather than how much value you get from it
- Security, observability and platform are priced separately
Consul
- Namespaces, admin partitions and other multi tenancy controls are Consul Enterprise only
- Audit logging, OIDC authentication and FIPS 140-2 builds require Consul Enterprise, so compliance driven deployments cannot use the free edition
- Automated backups, redundancy zones, read replicas and automated server upgrades are Enterprise only
- Long Term Support releases are Enterprise only, so community users must upgrade to stay supported
- Service mesh and advanced traffic management sit in the Premium Enterprise tier above Standard Enterprise
- HashiCorp does not publish a Consul rate on its pricing page, which lists per resource prices for Terraform instead
Pricing, plan by plan
Splunk
Free- FreeFree
- Log aggregation
- Real-time monitoring
- Data visualization
Consul
Free- Open SourceFree
- Service discovery
- Health checking
- KV store
Which should you pick?
Choose Splunk if
- You need log aggregation.
- You want to start without paying.
- You work on Web, Api.
- You also want real-time monitoring.
Choose Consul if
- You need service discovery.
- You want to start without paying.
- You work on Linux, Windows, Mac, Cloud.
- You also want health checking.
Questions people ask
- Is Splunk or Consul better?
- Neither clearly leads. Splunk starts at Free and Consul at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Splunk or Consul?
- Splunk starts at Free and Consul at Free.
- Does Splunk or Consul run on more platforms?
- Splunk runs on Web, Api. Consul runs on Linux, Windows, Mac, Cloud.
- Can I use Splunk for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Splunk best used for?
- Splunk is most often used for log search and analysis across infrastructure, siem, soar and ueba for a security operations team, application performance and infrastructure monitoring, cloud, private cloud or on-premises deployment. Of those, log search and analysis across infrastructure and siem, soar and ueba for a security operations team are not what Consul is typically brought in for.
- What can Splunk do that Consul cannot?
- Splunk covers Log aggregation, Real-time monitoring, Data visualization, Full-text search. Consul covers Service discovery, Health checking, Key/value store, Multi-datacenter.