[opensourcedex]

best-of ranking · updated nightly

Best Open Source Messaging & Event Streaming Tools

Ranked by GitHub stars — actual adoption, not editorial taste. All 8 are free, open source and self-hostable; license and last activity on every entry.

  1. 1
    AutoMQ ★ 11K

    S3-based serverless Kafka reinvented for cost efficiency

    Apache-2.0 Java pushed 2026-09-17 details →
  2. 2
    Soketi ★ 5.6K

    Next-gen WebSockets server for real-time apps

    AGPL-3.0 TypeScript pushed 2025-03-03 details →
  3. 3
    Timeplus ★ 2.3K

    Real-time stream processing made simple and affordable

    Apache-2.0 C++ pushed 2026-09-17 details →
  4. 4
    Sequin ★ 2.2K

    Open-source message stream built on Postgres

    MIT Elixir pushed 2026-02-23 details →
  5. 5
    Trench ★ 1.7K

    Fast, scalable analytics infrastructure

    MIT TypeScript pushed 2026-04-06 details →
  6. 6
    Hook0 ★ 1.5K

    Open-source webhooks for seamless integrations

    NOASSERTION Rust pushed 2026-09-16 details →
  7. 7
    Operational ★ 477

    Real-time event tracking and response for tech products

    AGPL-3.0 Vue pushed 2026-07-26 details →
  8. 8
    Workbench ★ 442

    Inspect, debug, and replay BullMQ queues visually

    MIT TypeScript pushed 2026-06-01 details →
method stars desc · snapshot from github api refresh nightly related Backup & Recovery, Search Engines, Server & VM Management, Cloud Infrastructure Management, Monitoring & Observability, Storage Solutions

Related best-of lists

best Backup & Recovery →best Search Engines →best Server & VM Management →best Cloud Infrastructure Management →best Monitoring & Observability →best Storage Solutions →

last updated nightly · ranking method: github stars, live-tracked

Looking for a replacement for one specific commercial product? Browse alternatives by tool →

Frequently asked questions

What is the best open source Messaging & Event Streaming tool in 2026?

AutoMQ leads the ranking with 10,775 GitHub stars, ahead of Soketi. Rankings use live GitHub star counts, refreshed nightly.

How is this list of Messaging & Event Streaming tools ranked?

By GitHub stars — a proxy for adoption and community size. Each entry also shows its licence, primary language and last commit date, so you can judge maintenance activity rather than trusting the ranking alone.

Are the best Messaging & Event Streaming tools free?

Every project on this list is open source and free to self-host. Some also offer paid managed hosting, but the software itself carries no licence fee.