Technology · head to head
etcd vs HCP Terraform
etcd
Technology
A distributed key-value store using Raft consensus, built for cluster coordination rather than application data.
- From
- On request
- Free plan
- No
HCP Terraform
Developer Tools
Infrastructure as code provisioning and management, formerly Terraform Cloud
- From
- Free
- Free plan
- Yes
The short version
- Only HCP Terraform has a free tier, so it costs nothing to try first.
- Each has a real cost: etcd it is sized for coordination data, not application data: the default backend quota is 2 GB and 8 GB is the documented recommended maximum, and exceeding it puts the cluster into a NOSPACE alarm where it accepts no writes until an operator compacts, defragments and clears the alarm by hand.; HCP Terraform legacy free version deprecated; no current freemium tier
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which etcd and HCP Terraform actually diverge.
| Attribute | etcd | HCP Terraform |
|---|---|---|
| Starting price | On request | Free |
| Pricing model | open-source | usage-based |
| Free tier | No | Yes |
| Category | Technology | Developer Tools |
Identical on both: platforms (Web), user rating (Not yet rated).
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 etcd
- Raft consensus
- Linearizable reads
- Transactions
- Leases
- Watches
- MVCC revision history
- Role-based access control
- Snapshot backup and restore
Only in HCP Terraform
Nothing recorded that etcd does not also cover.
What people use each for
The jobs each tool is most often brought in to do.
etcd
- Storing Kubernetes cluster state, which is what the overwhelming majority of etcd deployments are doingnot HCP Terraform
- Leader election and distributed locking in a home-grown scheduler or control plane, using leases and transactionsnot HCP Terraform
- Service discovery and dynamic configuration where readers need to be notified of changes rather than poll for themnot HCP Terraform
- Coordinating failover in a clustered database, as Patroni does for PostgreSQLnot HCP Terraform
HCP Terraform
- Infrastructure as Code managementnot etcd
- Cloud resource provisioningnot etcd
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
etcd
- It is sized for coordination data, not application data: the default backend quota is 2 GB and 8 GB is the documented recommended maximum, and exceeding it puts the cluster into a NOSPACE alarm where it accepts no writes until an operator compacts, defragments and clears the alarm by hand.
- Every write is replicated and fsynced before acknowledgement, so cluster performance is bounded by the slowest disk in it; a member on network-attached storage with high fsync latency causes leader elections and cluster-wide latency spikes that look like network problems and are not.
- Adding members increases availability but reduces write throughput, because each write must reach a larger quorum; you run three or five members for fault tolerance, and increasing capacity means faster hardware rather than more nodes.
- There is no sharding and no multi-tenancy, so isolating workloads means running separate clusters, each with its own quorum, certificates, backup schedule and upgrade path, and that operational multiplication is often unexpected.
- Running it yourself is a real job: periodic compaction and defragmentation, snapshot backups you have actually rehearsed restoring, and rotation of both peer and client TLS certificates, none of which happens automatically outside a managed Kubernetes service.
- Losing quorum is not self-healing; recovering a cluster that has lost a majority means restoring from a snapshot and accepting that everything written since that snapshot is gone, which makes backup frequency a data-loss budget decision rather than a routine setting.
HCP Terraform
- Legacy free version deprecated; no current freemium tier
- New users receive $500 credit but still require usage to continue service
- Terraform Enterprise requires custom pricing
Pricing, plan by plan
etcd
On requestNo published plan breakdown. See the etcd review.
HCP Terraform
Free- Essentials$0.1/month
- Per resource pricing
- Remote state storage
- VCS connection
- Standard$0.47/month
- Per resource pricing
- Essentials features plus unlimited modules
- Module deprecation
- Premium$0.99/month
- Per resource pricing
- Standard features plus module revocation
- Waypoint actions
Which should you pick?
Questions people ask
- Is etcd or HCP Terraform better?
- Neither clearly leads. etcd starts at On request and HCP Terraform at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, etcd or HCP Terraform?
- HCP Terraform has a free tier; the other does not. Paid plans start at On request for etcd and Free for HCP Terraform.
- Does etcd or HCP Terraform run on more platforms?
- Both run on Web, so platform support will not decide this one for you.
- Can I use HCP Terraform for free?
- Yes. HCP Terraform has a free tier, so you can try it without paying. etcd starts at On request.
- What is etcd best used for?
- etcd is most often used for storing kubernetes cluster state, which is what the overwhelming majority of etcd deployments are doing, leader election and distributed locking in a home-grown scheduler or control plane, using leases and transactions, service discovery and dynamic configuration where readers need to be notified of changes rather than poll for them, coordinating failover in a clustered database, as patroni does for postgresql. Of those, storing kubernetes cluster state, which is what the overwhelming majority of etcd deployments are doing and leader election and distributed locking in a home-grown scheduler or control plane, using leases and transactions are not what HCP Terraform is typically brought in for.
- What can etcd do that HCP Terraform cannot?
- etcd covers Raft consensus, Linearizable reads, Transactions, Leases.
Answered from the vendors’ own pages
etcd: Can I use etcd as an application database?
No. It is designed for metadata and coordination, with a recommended maximum store size of around 8 GB, no sharding and a write path deliberately optimised for durability rather than throughput. Application data belongs in a database built for it.
HCP Terraform: How much does HCP Terraform cost?
HCP Terraform uses per-resource pricing starting at $0.10/month/resource for Essentials, $0.47/month/resource for Standard, and $0.99/month/resource for Premium.
Sourceetcd: How many members should a cluster have?
Three for most cases, five where you need to survive two simultaneous failures. Always an odd number, because an even-sized cluster gains no additional fault tolerance while making quorum harder to reach.
HCP Terraform: Does HCP Terraform offer a free tier?
No, the legacy free version has been deprecated. However, new users receive $500 credit to try the service.
Sourceetcd: What happens when the store fills up?
The cluster raises a NOSPACE alarm and stops accepting writes, becoming effectively read-only. Recovery requires compacting old revisions, defragmenting each member and then explicitly disarming the alarm, all done by an operator.
HCP Terraform: What does the Standard plan include?
Standard plan at $0.47/month/resource includes unlimited modules, module deprecation, team notifications, no-code provisioning, and Waypoint templates.
Sourceetcd: Why is my etcd cluster slow or unstable?
Almost always disk latency. Because every write is fsynced before acknowledgement, slow or shared storage causes heartbeat timeouts, leader elections and cascading latency. Local SSDs with low fsync latency are effectively a requirement.
etcd: How does it compare with Consul or ZooKeeper?
All three provide consensus-backed coordination. etcd has the simplest data model and the Kubernetes ecosystem behind it; Consul bundles service discovery, health checking and a service mesh; ZooKeeper is older, JVM-based and still common under Kafka and Hadoop-era systems.
Related pages
More on HCP Terraform
Other head to heads
- etcd vs Linear
- etcd vs Asana
- etcd vs ClickUp
- etcd vs Figma
- etcd vs Istio
- etcd vs MongoDB
- etcd vs Finxact
- etcd vs Sentry
- etcd vs Trino
- etcd vs Jenkins
- etcd vs Apache Hadoop
- etcd vs Height
- etcd vs Raycast
- etcd vs Superhuman
- etcd vs Vim
- etcd vs Whimsical
- etcd vs Apache Spark
- etcd vs Atlantis
- etcd vs Visual Studio Code
- etcd vs ESLint
- etcd vs pnpm
- etcd vs Turborepo
- etcd vs Harness
- etcd vs Octopus Deploy
- etcd vs Moonrepo
- etcd vs Ansible
- etcd vs Spacelift
- etcd vs Coder
- etcd vs Keycloak
- etcd vs Nx Cloud
- etcd vs Pants Build
- etcd vs Swagger UI
- etcd vs Yarn
- HCP Terraform vs Linear
- HCP Terraform vs Asana
- HCP Terraform vs ClickUp
- HCP Terraform vs Figma
- HCP Terraform vs Istio
- HCP Terraform vs MongoDB
- HCP Terraform vs Finxact
- HCP Terraform vs Sentry
- HCP Terraform vs Trino
- HCP Terraform vs Jenkins
- HCP Terraform vs Apache Hadoop
- HCP Terraform vs Height
- HCP Terraform vs Raycast
- HCP Terraform vs Superhuman
- HCP Terraform vs Vim
- HCP Terraform vs Whimsical
- HCP Terraform vs Apache Spark
- HCP Terraform vs Atlantis
- HCP Terraform vs Visual Studio Code
- HCP Terraform vs ESLint
- HCP Terraform vs pnpm
- HCP Terraform vs Turborepo
- HCP Terraform vs Harness
- HCP Terraform vs Octopus Deploy
- HCP Terraform vs Moonrepo
- HCP Terraform vs Ansible
- HCP Terraform vs Spacelift
- HCP Terraform vs Coder
- HCP Terraform vs Keycloak
- HCP Terraform vs Nx Cloud
- HCP Terraform vs Pants Build
- HCP Terraform vs Swagger UI
- HCP Terraform vs Yarn