Technology · head to head
etcd vs Miro
etcd
Technology
A distributed key-value store using Raft consensus, built for cluster coordination rather than application data.
- From
- On request
- Rated
- -
The short version
- Only Miro 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.; Miro free tier limited to 3 editable boards; additional boards must be shared as read-only
- They diverge on capability: etcd covers Raft consensus, Miro covers Infinite canvas.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which etcd and Miro actually diverge.
Identical on both: platforms (Web), user rating (Not yet rated), category (Technology).
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 Miro
- Infinite canvas
- Real-time collaboration
- Digital sticky notes
- Diagramming
- Mind mapping
- Video chat
- Screen sharing
- Templates
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 Miro
- Leader election and distributed locking in a home-grown scheduler or control plane, using leases and transactionsnot Miro
- Service discovery and dynamic configuration where readers need to be notified of changes rather than poll for themnot Miro
- Coordinating failover in a clustered database, as Patroni does for PostgreSQLnot Miro
Miro
- Collaborative whiteboarding and diagrammingnot etcd
- Team brainstorming and ideation sessionsnot etcd
- Project planning and workflow visualisationnot etcd
- Remote team collaborationnot 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.
Miro
- Free tier limited to 3 editable boards; additional boards must be shared as read-only
- AI credits heavily restricted: 25 credits per member per month on Starter, 50 on Business
- Enterprise plan requires minimum 30 members
- Large projects with numerous nested objects may impact performance on lower tiers
Pricing, plan by plan
etcd
On requestNo published plan breakdown. See the etcd review.
Miro
Free- FreeFree
- 3 editable boards
- 7,000+ templates
- Multiple formats (Docs, Tables, Slides, Kanban)
- Starter$8/month
- Unlimited boards
- Visitor editing
- High-resolution exports
- Business$20/month
- Unlimited workspaces
- Unlimited guests
- 4,700+ diagramming shapes
- Enterprise$null/mo
- Custom pricing from 30 members
- Enterprise-grade security
- Regional data hosting
Which should you pick?
Choose Miro if
- You need infinite canvas.
- You want to start without paying.
- You also want real-time collaboration.
Questions people ask
- Is etcd or Miro better?
- Neither clearly leads. etcd starts at On request and Miro at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, etcd or Miro?
- Miro has a free tier; the other does not. Paid plans start at On request for etcd and Free for Miro.
- Does etcd or Miro run on more platforms?
- Both run on Web, so platform support will not decide this one for you.
- Can I use Miro for free?
- Yes. Miro 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 Miro is typically brought in for.
- What can etcd do that Miro cannot?
- etcd covers Raft consensus, Linearizable reads, Transactions, Leases. Miro covers Infinite canvas, Real-time collaboration, Digital sticky notes, Diagramming.
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.
Miro: How much does Miro cost per month?
Miro offers Free (no cost), Starter at $8/month per member (billed yearly), Business at $20/month per member (billed yearly), and Enterprise with custom pricing from 30 members.
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.
Miro: Is there a free version of Miro?
Yes, Miro's Free plan includes 3 editable boards, 7,000+ templates, multiple formats, limited AI trial, 250+ integrations, and 100 MCP calls per day.
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.
Miro: Do organizations get discounts on Miro?
Miro offers education and nonprofit discounts, as well as startup credits of $500-$1,000 for eligible startups.
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.
Miro: How does annual billing compare to monthly billing?
Annual billing saves 20% compared to monthly billing across all paid tiers on Miro.
Sourceetcd: 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.
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