Comparison

Hazelcast vs Upstash

On the evidence we track, Upstash leads this comparison with a composite score of 73/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Hazelcast61
★Upstash73
Score
vioscaleAI score
Hazelcast61 / 100medium · 56%
Upstash73 / 100medium · 72%
Pricing
Free tier
Hazelcast–
Upstash✓
Model
Hazelcastcommercial
Upstashfreemium
Price level
Hazelcastunknown
Upstashlow
Starting price
Hazelcast–
Upstash$5
Transparent
Hazelcast✗
Upstash✓
Integrations
Count
Hazelcast6
Upstash6
Security
Disclosure policy
Hazelcast–
Upstash✓
Gdpr
Hazelcast✓
Upstash✓
Hipaa
Hazelcast–
Upstash✓
Scorecard
Hazelcast4.2
Upstash–
Soc2
Hazelcast–
Upstash✓
Reliability
Sla pct
Hazelcast–
Upstash99.99
Status page
Hazelcast✓
Upstash✓
Adoption
Dependent repos
Hazelcast10,433
Upstash–
Github stars
Hazelcast6,620
Upstash–
Package downloads weekly
Hazelcast3,112
Upstash–
Activity
Commits last 30d
Hazelcast80
Upstash–
Release
Cadence days
Hazelcast15
Upstash–
History
Hazelcast20 items
Upstash–
License
Spdx
HazelcastApache-2.0
Upstash–
Language
Primary
HazelcastJava
Upstash–
Market
Availability
Content
Faq
Hazelcast5 items
Upstash7 items

Capabilities

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

Storage
Storage tier
HazelcastIn-memory
UpstashPersistent
Persistence
HazelcastFully durable
UpstashFully durable
Data structures
HazelcastKV-only
UpstashRich types
Protocol
Wire protocol
HazelcastCustom
UpstashRESP (Redis)
Distribution
Clustering
HazelcastReplicated
UpstashReplicated
Consistency
HazelcastStrong
UpstashStrong
Ops
Eviction / TTL policies
Hazelcast✓
Upstash✓
Multi-threaded
Hazelcast-
Upstash✗
Pub/Sub / streams
Hazelcast✓
Upstash✓
Transactions / atomic ops
Hazelcast-
UpstashMULTI-EXEC
Deployment
Deployment
HazelcastSelf-hosted
UpstashManaged
Licensing
Licence class
Hazelcast-
UpstashProprietary
Compatibility
Redis API compatibility
Hazelcast-
UpstashFull

What each one is

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

Hazelcast

A distributed, in-memory computing platform that combines caching, stream processing, and data integration to enable real-time applications with low-latency data access and instant decision-making.

Independently observed

Upstash

Leader

A cloud platform offering serverless Redis, vector databases, message queues, and workflow orchestration designed for developers building serverless applications, with usage-based and fixed-rate pricing options.

Independently observed

Pricing

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

Hazelcast

Quote-based
as of verify ↗

Upstash

Leader
from $5/moHybridFree tier

Free tier (30 MB), Essentials from $5/month, Pro from $200/month

  • FreeFree
    • No replication
    • Single database
    • Limited throughput
  • Essentials$5/month (250 MB) to $216/month (12 GB)
    • Predefined database sizes (250 MB to 12 GB)
    • Bandwidth and throughput limits per tier
    • Optional high availability
    • Flex tier with reduced throughput
  • Pro$200/month minimum + $0.014/hour usage-based billing
    • Unlimited memory
    • Dedicated VPC infrastructure
    • Multiple databases per subscription
    • Active-Active multi-region writes
    • Auto-tiering
    • +1 more
as of verify ↗

Platform & deployment

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

Platforms
Web
Hazelcast✗
Upstash✓
Linux
Hazelcast✓
Upstash✗
CLI
Hazelcast✓
Upstash✓
Deployment
Cloud / SaaS
Hazelcast✓
Upstash✓
Self-hosted
Hazelcast✓
Upstash✗
Hybrid
Hazelcast✓
Upstash✗

Integrations

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

In common (2)
  • MongoDB
  • JDBC

Hazelcast

10 total - 8 not shared
  • Spring Integration
  • Kafka
  • Hadoop
  • S3
  • RDBMS
  • JMS
  • Oracle Database
  • Microsoft SQL Server
Independently observed

Upstash

Leader
13 total - 11 not shared
  • Cloudflare Workers
  • Auth0
  • MySQL
  • PostgreSQL
  • Debezium
  • FluentBit
  • Drizzle
  • Vercel AI SDK
  • Redis protocol clients
  • Vercel
  • Aiven
Independently observed
Still deciding?

Hazelcast or Upstash: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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