
elysiaJS
@elysiaJS
An ergonomic framework for human. With End-to-End Type Safety, type integrity, and exceptional developer experience. Supercharged by Bun.
Introducing ElysiaJS - Ergonomic Framework for Human Try it out now $ bun create elysia app

Elysia + Tanstack Start is now on Elysia documentation

We have fixed several Elysia issues, especially with Server-Sent Event


Introducing Elysia Playground An interactive playground to experiment with Elysia directly from your browser A new tutorial of 21 pages, With an easy-to-understand guide to help you learn, and build your first Elysia app There has never been a better time to learn Elysia
Elysia is listed in the State of JavaScript 2025 survey!! All thanks to your overwhelming support 💓

You can now run Elysia on Cloudflare Worker There are some caveats and limitations But we believe that this will be a good start

Introducing Elysia 1.4 - Supersymmetry Feature: - Standard Schema - Macro schema, and extension - Lifecycle Type Soundness - Group standalone schema - Faster type inference ↓ Release note in reply ↓

"OpenAPI Type Gen" is on Elysia's documentation So you can convince your senior to try out Elysia instead of sending an X/Twitter post

Another important news Elysia Swagger is now OpenAPI

Introducing Type to OpenAPI schema (experimental) Allowing you to generate an OpenAPI schema automatically without a schema Elysia will directly infer the type and turn it into OpenAPI Schema automatically By adding 1 line, you get a full-fledged API documentation

Introducing Type to OpenAPI schema (experimental) Allowing you to generate an OpenAPI schema automatically without a schema Elysia will directly infer the type and turn it into OpenAPI Schema automatically By adding 1 line, you get a full-fledged API documentation

Eden Treaty now supports type-safe Server-Sent Events Update Elysia to 1.3.18 and @elysiajs/eden 1.3.3

You can now deploy Elysia to Vercel Functions We also just added 4 step to get started in Elysia documentation

You can now directly export standard fetch web handlers in Vercel Functions. Works with any fetch-compatible framework, or none at all. vercel.com/changelog/node…
Important performance patch We found that Elysia doesn't use "normalize" option for the following schema: - headers - params - query - cookie If you use the schema mentioned above, Elysia should be much faster We recommend updating to 1.3.13 if possible

Elysia 1.3.9 has just been released Named after 夢路の花 This is a big patch We closed almost 300 pending issues

✨ Performance improvement report at Tiptap's Convert Service v2 ✨ Node/Hono → Bun/Elysia Migration Results: 🫠 *Before*: 17 milliseconds (Node.js + Hono) 🥳 *After*: 9 milliseconds (Bun + Elysia) ✨*Improvement*: *47% faster* 🚀 Migrated from Node.js/Hono to Bun/Elysia and…
You can use srvx CLI with your favorite web-standard framework (@elysiaJS, @honojs, h3.dev), a plain fetch handler, or no server at all (static-only). More examples: srvx.h3.dev/guide#starter-…

We want to add a "used by" section on Elysia doc If you use Elysia at work, please let us know! Direct link in reply ↓

Elysia Folder Structure Elysia is unopinionated about folder structure and believe that you should decided it yourself However if you don't have any preferences, we got you cover Check it out now on Best Practices

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