Hatchet – open-source, event-based workflow engine
Hey HN - over the past few months, I’ve been working on Hatchet, which is a workflow engine meant for event-driven applications. Workflows are triggered by user-defined events (along with schedules and cron jobs). It bundles a web UI for observability and has several integrations built out (Sentry, OpenTelemetry, Slack). It’s very similar to using an SQS + EventBridge + AWS Lambda stack, but uses worker pools to process functions instead of isolated function invocations. Some features that Hatchet offers: 1. Publish, react to, and query events using the Events API [1] 2. You can define…
Hatchet – open-source, event-based workflow engine launched on January 12, 2024 with 7 votes, #1,798 of 4,437 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 2 years on.
What it does
🪓 An orchestration engine for background tasks, AI agents, and durable workflows - hatchet-dev/hatchet
In the maker’s words, at launch
Hey HN - over the past few months, I’ve been working on Hatchet, which is a workflow engine meant for event-driven applications. Workflows are triggered by user-defined events (along with schedules and cron jobs). It bundles a web UI for observability and has several integrations built out (Sentry, OpenTelemetry…
Does a similar job
all alternatives →
Hatchet – Open-source distributed task queue2024 · github.com · ▲578Hello HN, we're Gabe and Alexander from Hatchet (https://hatchet.run), we're working on an open-source, distributed task queue. It's an alternative to tools like Celery for Python and BullMQ for Node.js, primarily focused on reliability and observability. It uses Postgres for the underlying queue. Why build another managed queue? We wanted to build something with the benefits of full transactional enqueueing - particularly for dependent, DAG-style execution - and felt strongly that Postgres solves for 99.9% of queueing use-cases better than most alternatives (Celery uses Redis or…
Hatchet v1 – A task orchestration platform built on Postgres2025 · github.com · ▲240Hey HN - this is Alexander from Hatchet. We’re building an open-source platform for managing background tasks, using Postgres as the underlying database. Just over a year ago, we launched Hatchet as a distributed task queue built on top of Postgres with a 100% MIT license (https://news.ycombinator.com/item?id=39643136). The feedback and response we got from the HN community was overwhelming. In the first month after launching, we processed about 20k tasks on the platform — today, we’re processing over 20k tasks per minute (>1 billion per month). Scaling up this quickly was…
We built a developer-first open-source Zapier alternative2023 · trigger.dev · ▲745For the past few months we’ve been building Trigger.dev and can now share our beta with you: https://github.com/triggerdotdev/trigger.dev. Trigger.dev is an open source platform that makes it easy for developers to create event-driven background tasks directly in their code. You write workflows using our SDK, and can view all the runs in our web app. Why we built this: - We found current workflow / automation tools like Zapier and n8n are good for simple tasks, but not for more advanced use cases. - Dropping down into code in these tools is just not a great…
- IAInngest – an open-source event-driven queue2022 · ▲19
Hi HN! We’re Tony and Dan, the founders of Inngest - https://www.inngest.com. We’re an event-driven queueing system. Existing queueing solutions have pretty terrible UX. We solve this by making it simple for you to write delayed or background jobs by triggering step functions from JSON-based events. At a high level, Inngest does two things: - Ingest events from your systems via HTTP (pun intended) - Triggers serverless functions in response to specific events — async, either immediately or delayed. This allows you to build out async functions (eg. background jobs, handling…
EventNative – An open-source, user event collection service2020 · github.com · ▲228Jitsu is an open-source Segment alternative. Fully-scriptable data ingestion engine for modern data teams. Set-up a real-time data pipeline in minutes, not days - jitsucom/jitsu

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