Comparison

etcd vs Hazelcast

On the evidence we track, etcd leads this comparison with a composite score of 64/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

etcd full profile →Hazelcast full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

★etcd64

Hazelcast49

Attribute comparison across 2 tools
Attribute	etcdLeader	Hazelcast
Vioscale score	64 / 100low · 44%	49 / 100medium · 56%
Pricing
Free tierpricing.free_tier	✗	-
Modelpricing.model	open_source	commercial
Price levelpricing.price_level	free	unknown
Transparentpricing.transparent	✓	✗
Integrations
Countintegrations.count	80	1
Security
Gdprsecurity.gdpr	-	✓
Scorecardsecurity.scorecard	6.7	4.2
Vulnerabilitiessecurity.vulnerabilities	Count: 8 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=go.etcd.io%2Fetcd&per_page=100 · Last 12m: 3 · Max severity: HIGH	Count: 8 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.hazelcast%3Ahazelcast&per_page=100 · Last 12m: 0 · Max severity: CRITICAL
Reliability
Status pagereliability.status_page	-	✓
Adoption
Dependent reposadoption.dependent_repos	39,452	10,433
Github starsadoption.github_stars	52,178	6,604
Package downloads weeklyadoption.package_downloads_weekly	-	4,717
Activity
Commits last 30dactivity.commits_last_30d	96	71
Release
Cadence daysrelease.cadence_days	-	15
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	Apache-2.0	Apache-2.0
Language
Primarylanguage.primary	Go	Java

Score

Vioscale score

etcd64 / 100low · 44%

Hazelcast49 / 100medium · 56%

Pricing

Free tier

etcd✗

Hazelcast–

Model

etcdopen_source

Hazelcastcommercial

Price level

etcdfree

Hazelcastunknown

Transparent

etcd✓

Hazelcast✗

Integrations

Count

etcd80

Hazelcast1

Security

Gdpr

etcd–

Hazelcast✓

Scorecard

etcd6.7

Hazelcast4.2

Vulnerabilities

etcdCount: 8 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=go.etcd.io%2Fetcd&per_page=100 · Last 12m: 3 · Max severity: HIGH

HazelcastCount: 8 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.hazelcast%3Ahazelcast&per_page=100 · Last 12m: 0 · Max severity: CRITICAL

Reliability

Status page

etcd–

Hazelcast✓

Adoption

Dependent repos

etcd39,452

Hazelcast10,433

Github stars

etcd52,178

Hazelcast6,604

Package downloads weekly

etcd–

Hazelcast4,717

Activity

Commits last 30d

etcd96

Hazelcast71

Release

Cadence days

etcd–

Hazelcast15

History

etcd20 items

Hazelcast20 items

License

Spdx

etcdApache-2.0

HazelcastApache-2.0

Language

Primary

etcdGo

HazelcastJava

Capabilities

Feature-by-feature on the axes that matter for key-value stores. “-” means undocumented, not absent.

Capability comparison for Key-Value Stores
Capability	etcd	Hazelcast
Storage
Storage tier	Persistent	In-memory
Persistence	Append-only log	-
Data structures	Rich types	-
Protocol
Wire protocol	gRPC	Custom
Distribution
Clustering	Consensus (Raft)	Replicated
Consistency	Strong	-
Ops
Eviction / TTL policies	✓	-
Multi-threaded	-	-
Pub/Sub / streams	✓	-
Transactions / atomic ops	-	-
Deployment
Deployment	Self-hosted	Self-hosted
Licensing
Licence class	Permissive OSS	-
Compatibility
Redis API compatibility	None	-

Storage

Storage tier

etcdPersistent

HazelcastIn-memory

Persistence

etcdAppend-only log

Hazelcast-

Data structures

etcdRich types

Hazelcast-

Protocol

Wire protocol

etcdgRPC

HazelcastCustom

Distribution

Clustering

etcdConsensus (Raft)

HazelcastReplicated

Consistency

etcdStrong

Hazelcast-

Ops

Eviction / TTL policies

etcd✓

Hazelcast-

Multi-threaded

etcd-

Hazelcast-

Pub/Sub / streams

etcd✓

Hazelcast-

Transactions / atomic ops

etcd-

Hazelcast-

Deployment

etcdSelf-hosted

HazelcastSelf-hosted

Licensing

Licence class

etcdPermissive OSS

Hazelcast-

Compatibility

Redis API compatibility

etcdNone

Hazelcast-

What each one is

The product in its own terms, so the numbers below have context.

etcd

Leader

etcd is a strongly consistent, distributed key-value store that provides a reliable way to store data that needs to be accessed by a distributed system or cluster of machines. It gracefully handles leader elections during network partitions and can tolerate machine failure.

Independently observed

Hazelcast

Hazelcast is a distributed data platform that provides real-time processing and continuous intelligence capabilities. It supports clustering and integrates with various frameworks and clients.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

etcd

Leader

Open source

as of 2026-08-14verify ↗

Hazelcast

Quote-based

as of 2026-08-03verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	etcd	Hazelcast
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✗	✓
Self-hostedDeployment	✓	✓
On-premiseDeployment	✗	✓

Platforms

CLI

etcd✓

Hazelcast✓

Deployment

Cloud / SaaS

etcd✗

Hazelcast✓

Self-hosted

etcd✓

Hazelcast✓

On-premise

etcd✗

Hazelcast✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

etcd

Leader

29 total

Kubernetes
Vitess
fleet
Docker
Puppet
confd
AWS ECS
SkyDNS
discodns
Hiera
Chef
BOSH
etcdctl
etcd-backup
etcd-dump
etcd-fs
etcd-browser
etcd-console
etcd-viewer
etcdtool
etcd-rest
etcdsh
etcdloadtest
etcd-workbench
+5 more

Independently observed

Hazelcast

2 total

Spring Integration
MongoDB

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.