Elysia vs Koa
Updated Aug 23, 2026
Quick Verdict
Koa has 1.9x more GitHub stars.
GitHub Stars
Elysia 19.0K
vs
Koa 35.7K
Downloads/wk
Elysia 0
vs
Koa 0
Contributors
Elysia 121
vs
Koa 254
Bundle Size
Elysia 50.4 KB
vs
Koa 63.3 KB
Detailed Comparison
Side-by-side metrics from GitHub and npm
Metric
Elysia
Koa
GitHub Stars
19.0K
35.7K
Weekly Downloads
0
0
Forks
568
3.2K
Open Issues
375
42
Contributors
121
254
Bundle Size (gzip)
50.4 KB
63.3 KB
Dependencies
4
18
Latest Version
1.4.29
3.2.1
Last Commit
Aug 19, 2026
Aug 23, 2026
License
MIT
MIT
First Published
Dec 4, 2022
Nov 6, 2013
Feature Comparison
Framework capabilities at a glance
Feature
Elysia
Koa
Typescript
Middleware
Websockets
Validation
Openapi
Edge Runtime
Decorators
Frequently Asked Questions
Common questions about Elysia vs Koa
Is Elysia better than Koa?
It depends on your use case. Elysia is ergonomic framework for humans built on bun, while Koa is expressive middleware for node.js using async functions. Compare the stats and features above to decide which fits your needs.
Is Elysia still maintained in 2026?
Yes, Elysia was last updated on August 19, 2026 and has 121 contributors.
Can I migrate from Elysia to Koa?
Migration complexity depends on how deeply Elysia is integrated into your project. Both tools serve similar purposes in the Backend Frameworks space, so migration is generally feasible with proper planning.
Related Comparisons
Explore more comparisons