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Elysia

Verified Sep 2026

Bun-first ergonomic backend

TypeScript framework built for Bun with end-to-end type safety, schema validation and class-leading throughput.

A TypeScript framework built for Bun with end-to-end type safety: define schemas once and get validation, docs and typed clients. Its benchmark numbers on Bun are exceptional, and the DX (Eden for typed fetch clients) is genuinely novel. The edge-native crowd's favorite when they already run Bun.

Who it's for

Bun developers who want a type-safe, extremely fast HTTP framework tuned for the Bun runtime.

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Elysia features

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