🛰️Infinity Stream · Active development

The open-source Amazon Kinesis alternative

Infinity Stream is an open-source Rust service combining an append-only commit log, consumer groups, real-time pub/sub and full-text search, for teams that want a cloud-agnostic, self-contained streaming and search runtime.

See Infinity Stream in the stack →★ View source

// ABOUT AMAZON KINESIS

Amazon Kinesis Data Streams is AWS's managed real-time streaming service, with shard-based (or on-demand) capacity and deep integration into the AWS ecosystem.

When to consider Infinity Stream

▸You want streaming that is not tied to a single cloud provider

▸You want a lighter, self-contained runtime you can self-host anywhere

▸You want streaming plus built-in full-text search in one service

▸You want topics, partitions and consumer offsets without shard management

▸You prefer an open-source, auditable codebase

Infinity Stream vs Amazon Kinesis — at a glance

Amazon Kinesis

Infinity Stream

Licensing

Proprietary / commercial

Open-source (Apache-2.0)

Hosting model

Amazon Kinesis is delivered primarily as a vendor-managed service

Self-hosted on your own local, cloud, or hybrid infrastructure

Cloud coupling

Native to the AWS ecosystem (Lambda, Firehose, IAM)

Cloud-agnostic — any local, cloud or hybrid infrastructure

Capacity model

Shard-based or on-demand managed capacity

Self-managed: topics, partitions and consumer offsets

Via downstream services

Built-in BM25-ranked full-text search

Maturity

Amazon Kinesis is an established, widely-adopted platform

Newer project — active development

// AN HONEST NOTE

Kinesis is a fully-managed service that scales elastically and integrates natively with Lambda, Firehose and the wider AWS ecosystem. Infinity Stream is a newer, self-hosted, cloud-agnostic alternative in active development — you trade managed elasticity for control and portability.

Amazon Kinesis alternative — FAQ

Can Infinity Stream integrate with AWS services like Kinesis does?

Not natively. Kinesis has first-class AWS integrations (Lambda triggers, Firehose delivery). Infinity Stream exposes standard APIs and WebSocket pub/sub, so integrations are yours to build — the benefit is portability across clouds.

Is Infinity Stream free?

Yes — open source under Apache-2.0 and free to self-host, with no per-shard or throughput charges.

What is the status of Infinity Stream?

It is in active development. Evaluate throughput and durability needs against Kinesis before moving critical pipelines.

// OTHER ALTERNATIVES

Infinity ID vs Auth0 →Infinity Observe vs Datadog →Infinity Data vs Pinecone →Infinity Stream vs Kafka →Infinity ID vs Okta →Infinity ID vs Clerk →Infinity ID vs Amazon Cognito →Infinity Observe vs New Relic →Infinity Observe vs Splunk →Infinity Data vs Elasticsearch →Infinity Stream vs Confluent →