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Top 23 TypeScript Event Projects
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eventcatalog
The discovery and governance layer for event-driven systems. Document your domains, services, events and schemas — for your teams and your AI agents.
Project mention: EventCatalog – Open-Source Tool for Documenting Event-Driven Architectures | news.ycombinator.com | 2025-10-17Hi HN,
Three years ago, I was struggling to keep track of the events and services in a growing event-driven system at an organization I was working at.
No events were documented, and we fell into a big ball of mud... (easy to do! with event architecture IMO)
2021 Christmas I started building EventCatalog as a weekend project to solve that — and it slowly grew into something much bigger.
EventCatalog is now an open source tool to document and visualize event-driven architectures — events, services, domains, diagrams — all in one place.
What started as a personal tool has turned into a community project used by teams to bring clarity to complex EDA systems. I’ve been working on it solo for 3 years, refining it with real users, adding governance features, imports/exports, and now even a Studio for visual modeling.
GitHub: https://github.com/event-catalog/eventcatalog
Demo / Docs: https://eventcatalog.dev
If you work with event-driven systems, I’d love your thoughts:
How do you document your events/services today?
What’s still painful or missing in tools like this?
This project has been a long journey — now I’m opening it up to more feedback and ideas from the HN community!
Thanks for reading!
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planby
Planby is a component for a quick implementation of Schedules, Timelines, Electronic Program Guide, Conference / Calendar Planner, Music Events and many more ideas.
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hackertab.dev
A Chrome 🌐 & Firefox 🦊 extension to discover the latest developer news and tools in one tab!
Project mention: Show HN: OpenFeed – private dev news in your new tab, with LinkedIn and X feeds | news.ycombinator.com | 2026-05-26Fork of Hackertab (https://github.com/medyo/hackertab.dev). All sources fetch directly in your browser - nothing goes through a server.
LinkedIn and X work via your existing session cookies. Onboarding runs Claude (your claude.ai session) in the background to infer your stack from your LinkedIn profile. No credentials stored, no data leaves your machine.
LinkedIn, X, and Claude.ai technically restrict this kind of access — though it's your own data, in your own browser. Use at your own discretion.
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three.ez
Simplify three.js development, including events, drag & drop, binding, focus management, smart rendering, tweening and more.
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tiny-events.js
TinyEvents is a tiny event utility library for modern browsers(IE 11+). Supports jQuery-like syntax. Just 1 kb gzipped.
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Project mention: Show HN: Eventvisor – govern, transform, filter tracked events via remote config | news.ycombinator.com | 2025-09-30
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tickets
Chobble Tickets: Minimalist and private ticket sales on Bunny's Edge Scripts - a "no per-attendee fee" alternative to BookItBee, Eventbrite, Seetickets, etc (by chobbledotcom)
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
TypeScript Events discussion
TypeScript Events related posts
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I shipped a fix. The PR got closed. And that’s exactly how open source works sometimes 🙂
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Launch HN: Trigger.dev (YC W23) – Open-source platform to build reliable AI apps
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Trigger.dev - Background jobs framework for NextJS, Remix, Astro, and so many more!
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🛠️ 10 Exceptional Developer Tools Launched in 2023 🚀
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Supabase Integrations Marketplace
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How do you handle queues in Node.js? Have you ever tried using pgboss?
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Fastest event emitter library in the world
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A note from our sponsor - SaaSHub
www.saashub.com | 10 Jun 2026
Index
What are some of the best open-source Event projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | eventcatalog | 2,722 |
| 2 | planby | 1,719 |
| 3 | hackertab.dev | 763 |
| 4 | wonka | 734 |
| 5 | vue-global-events | 695 |
| 6 | hardhat-tracer | 365 |
| 7 | three.ez | 365 |
| 8 | event-emitter | 245 |
| 9 | tseep | 220 |
| 10 | abrechnung | 202 |
| 11 | react-calendar | 173 |
| 12 | notation | 54 |
| 13 | pg-tbus | 29 |
| 14 | event-scout | 27 |
| 15 | event | 26 |
| 16 | flockstr | 25 |
| 17 | tiny-events.js | 23 |
| 18 | kalender-events | 21 |
| 19 | felony | 12 |
| 20 | eventvisor | 12 |
| 21 | nostr-calendar | 11 |
| 22 | plektos | 11 |
| 23 | tickets | 9 |
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