3-day conference
Effect Days
For engineers shipping production systems in TypeScript
Effect 4.0 is on the way!
- ~20× faster streams & batching
- Smaller bundles
- STM integrated into core
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past editions
Relive Effect Days
Real-world use cases from companies like Vercel, MasterClass, and Zendesk, and full-day workshops
Feb 22-24, 2024
Effect Days 2024
Where the Effect community gathered for the first time to share how they were using it in real-world, from early experiments to production systems.
Inaugural Edition
15 Talks
Vienna, Austria
Watch the full playlist
Mar 19-21, 2025
Effect Days 2025
A more in-depth event spotlighting advanced use cases and real production stories, showing how Effect has evolved into a mature, scalable library.
Past Edition
19 Talks
Livorno, Italy
Watch the full playlist
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