Software · head to head
Consul vs Splunk
The short version
- Each has a real cost: Consul namespaces, admin partitions and other multi tenancy controls are Consul Enterprise only; Splunk no prices are published on any plan; every model requires contacting sales for an estimate
- They diverge on capability: Consul covers Service discovery, Splunk covers Log aggregation.
Where they differ
Only the attributes on which Consul and Splunk 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 Consul
- Service discovery
- Health checking
- Key/value store
- Multi-datacenter
- DNS interface
- Service mesh
- Load balancing
- Configuration management
Only in Splunk
- Log aggregation
- Real-time monitoring
- Data visualization
- Full-text search
- Custom dashboards
- Alert management
- Anomaly detection
- Log parsing
What people use each for
The jobs each tool is most often brought in to do.
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
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
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
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
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
Pricing, plan by plan
Consul
Free- Open SourceFree
- Service discovery
- Health checking
- KV store
Splunk
Free- FreeFree
- Log aggregation
- Real-time monitoring
- Data visualization
Which should you pick?
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.
Choose Splunk if
- You need log aggregation.
- You want to start without paying.
- You work on Web, Api.
- You also want real-time monitoring.
Questions people ask
- Is Consul or Splunk better?
- Neither clearly leads. Consul starts at Free and Splunk at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Consul or Splunk?
- Consul starts at Free and Splunk at Free.
- Does Consul or Splunk run on more platforms?
- Consul runs on Linux, Windows, Mac, Cloud. Splunk runs on Web, Api.
- Can I use Consul for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Consul best used for?
- Consul is most often used for service discovery and health checking across dynamic infrastructure, running a service mesh with mutual tls between services, distributed key value configuration storage for applications. Of those, service discovery and health checking across dynamic infrastructure and running a service mesh with mutual tls between services are not what Splunk is typically brought in for.
- What can Consul do that Splunk cannot?
- Consul covers Service discovery, Health checking, Key/value store, Multi-datacenter. Splunk covers Log aggregation, Real-time monitoring, Data visualization, Full-text search.