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Dropbox vs etcd

Dropbox logo

Dropbox

Technology

Cloud storage and file synchronization service

From
Free
Rated
-
Full reviewWebsite
etcd logo

etcd

Technology

A distributed key-value store using Raft consensus, built for cluster coordination rather than application data.

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Dropbox has a free tier, so it costs nothing to try first.
  • Each has a real cost: Dropbox the free Basic plan gives 2 GB of storage; 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.
  • They diverge on capability: Dropbox covers File synchronization, etcd covers Raft consensus.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Dropbox and etcd actually diverge.

Attributes where Dropbox and etcd differ
AttributeDropboxetcd
Starting priceFreeOn request
Pricing modelfreemiumopen-source
Free tierYesNo
PlatformsWindows, Macos, Linux, Ios, Android, WebWeb
Founded2007Unknown

Identical on both: 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 Dropbox

  • File synchronization
  • Cloud storage
  • File sharing
  • Version history
  • Offline access
  • Microsoft Office
  • Google Workspace
  • Slack

Only in etcd

  • Raft consensus
  • Linearizable reads
  • Transactions
  • Leases
  • Watches
  • MVCC revision history
  • Role-based access control
  • Snapshot backup and restore

What people use each for

The jobs each tool is most often brought in to do.

Dropbox

  • File backupnot etcd
  • Team collaborationnot etcd
  • Content sharingnot etcd
  • Remote worknot etcd

etcd

  • Storing Kubernetes cluster state, which is what the overwhelming majority of etcd deployments are doingnot Dropbox
  • Leader election and distributed locking in a home-grown scheduler or control plane, using leases and transactionsnot Dropbox
  • Service discovery and dynamic configuration where readers need to be notified of changes rather than poll for themnot Dropbox
  • Coordinating failover in a clustered database, as Patroni does for PostgreSQLnot Dropbox

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Dropbox

  • The free Basic plan gives 2 GB of storage
  • Version history is 30 days on Plus, 180 days on Standard and 1 year on Advanced
  • File transfers are capped at 50 GB on Plus and 100 GB on the team plans
  • The Advanced team plan requires a minimum of 3 users at $24 per user per month
  • eSignature requests are limited to 3 per month on Plus and Standard

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.

Pricing, plan by plan

Dropbox

Free
  • BasicFree
    • 2GB storage
    • File sharing and storage
  • Plus$9.99/month
    • 2TB storage
    • File transfer up to 50GB
    • PDF editing
  • Standard$15/month
    • 3TB for team
    • 180-day file recovery
    • 100GB transfers
  • Advanced$24/month
    • 15TB for team
    • 1-year file recovery
    • End-to-end encryption

etcd

On request

No published plan breakdown. See the etcd review.

Which should you pick?

Choose Dropbox if

  • You need file synchronization.
  • You want to start without paying.
  • You work on Windows, Macos, Linux, Ios, Android, Web.
  • You also want cloud storage.
Dropbox review

Choose etcd if

  • You need raft consensus.
  • You also want linearizable reads.
etcd review

Questions people ask

Is Dropbox or etcd better?
Neither clearly leads. Dropbox starts at Free and etcd at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Dropbox or etcd?
Dropbox has a free tier; the other does not. Paid plans start at Free for Dropbox and On request for etcd.
Does Dropbox or etcd run on more platforms?
Dropbox runs on Windows, Macos, Linux, Ios, Android, Web. etcd runs on Web.
Can I use Dropbox for free?
Yes. Dropbox has a free tier, so you can try it without paying. etcd starts at On request.
What is Dropbox best used for?
Dropbox is most often used for file backup, team collaboration, content sharing, remote work. Of those, file backup and team collaboration are not what etcd is typically brought in for.
What can Dropbox do that etcd cannot?
Dropbox covers File synchronization, Cloud storage, File sharing, Version history. etcd covers Raft consensus, Linearizable reads, Transactions, Leases.

Answered from the vendors’ own pages

Dropbox: How much does Dropbox cost?

Dropbox offers a free 2GB plan. Plus is $9.99/month (2TB), Standard is $15/user/month (3TB team), and Advanced is $24/user/month (15TB team).

Source
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.

Dropbox: Is Dropbox free?

Yes, Dropbox Basic is free with 2GB of storage for personal use and file sharing.

Source
etcd: 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.

Dropbox: What is the difference between Dropbox Plus, Standard, and Advanced?

Plus at $9.99/month offers 2TB personal storage. Standard at $15/user/month offers 3TB for teams with 180-day recovery. Advanced at $24/user/month offers 15TB with 1-year recovery and single sign-on.

Source
etcd: 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.

etcd: 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.

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