Skip to main content
Elysia logo

Elysia

Ergonomic Framework for Humans

★ 4.5

Ergonomic framework for building backend servers with Bun. TypeScript-first with end-to-end type safety. Fastest Bun framework available.

10K
GitHub Stars
native
TypeScript
easy
Learning Curve
4.6
DX Score
Visit Website → Documentation GitHub

Pricing

Model
free
Free Tier
MIT licensed, fully open source
Paid
N/A

Features

  • ✓ Bun-native performance
  • ✓ End-to-end type safety
  • ✓ Unified type system
  • ✓ OpenAPI generation
  • ✓ GraphQL support
  • ✓ WebSocket support
  • ✓ Plugin ecosystem
  • ✓ Eden Treaty (client)

Pros

  • + Fastest Bun framework
  • + Excellent type safety
  • + Clean API design
  • + Great documentation
  • + Active development

Cons

  • - Bun-only (primarily)
  • - Newer ecosystem
  • - Smaller community
  • - Fewer production deployments

Best For

startup indie hacker hobbyist

Alternatives

Hono Hono Fastify Fastify Express.js Express.js
backend bun typescript performance type-safe